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69-510: The Schipperke is a small, sturdy, usually black dog in the Spitz family. Their pointed ears are erect atop the head. Schipperkes are double coated with a soft, fluffy undercoat that is covered by a somewhat harsher-feeling and longer outer coat . One of the breed's characteristics is a long ruff that surrounds the neck and then a strip trails down towards the rear of the dog. They also have longer fur on their hind legs, called culottes. The breed

138-541: A 12-marker CMH signature that was more specific to the large closely related group of Cohens in Haplogroup J1. A further academic study published in 2009 examined more STR markers and identified a more sharply defined SNP haplogroup, J1e* (now J1c3, also called J-P58*) for the J1 lineage. The research found "that 46.1% of Kohanim carry Y chromosomes belonging to a single paternal lineage (J-P58*) that likely originated in

207-638: A Y-chromosome, because women have two X chromosomes in their 23rd pair. A man's patrilineal ancestry, or male-line ancestry, can be traced using the DNA on his Y-chromosome (Y-DNA), because the Y-chromosome is transmitted from a father to son nearly unchanged. A man's test results are compared to another man's results to determine the time frame in which the two individuals shared a most recent common ancestor , or MRCA, in their direct patrilineal lines. If their test results are very close, they are related within

276-471: A different part of the genome and being useful for different types of genealogical research: autosomal (atDNA), mitochondrial (mtDNA), and Y-chromosome (Y-DNA). Autosomal tests may result in a large number of DNA matches to both males and females who have also tested with the same company. Each match will typically show an estimated degree of relatedness, i.e., a close family match, 1st-2nd cousins, 3rd-4th cousins, etc. The furthest degree of relationship

345-419: A genealogically useful time frame. A surname project is where many individuals whose Y-chromosomes match collaborate to find their common ancestry. Women who wish to determine their direct paternal DNA ancestry can ask their father, brother, paternal uncle, paternal grandfather, or a paternal uncle's son (their cousin) to take a test for them. There are two types of DNA testing: STRs and SNPs. Most common

414-505: A haplotype known as the Cohen Modal Haplotype (CMH). This could be consistent with a shared common ancestor, or with the hereditary priesthood having originally been founded from members of a single closely related clan. Nevertheless, the original studies tested only six Y-STR markers, which is considered a low-resolution test. In response to the low resolution of the original 6-marker CMH, the testing company FTDNA released

483-487: A male can only have come from his maternal side. Like autosomal DNA, X-chromosome DNA undergoes random recombination at each generation (except for father-to-daughter X-chromosomes, which are passed down unchanged). There are specialized inheritance charts which describe the possible patterns of X-chromosome DNA inheritance for males and females. Some genealogical companies offer autosomal STRs (short tandem repeats). These are similar to Y-DNA STRs. The number of STRs offered

552-473: A person shares a direct line of part of his or her ancestry, but patterns of historic migration and historical events cloud the tracing of ancestral groups. Due to joint long histories in the US, approximately 30% of African American males have a European Y-Chromosome haplogroup Approximately 58% of African Americans have at least the equivalent of one great-grandparent (13%) of European ancestry. Only about 5% have

621-565: A person's ancestors having been included on tribal-specific Native American censuses (or final rolls) prepared during treaty -making, relocation to reservations or apportionment of land in the late 19th century and early 20th century. One example is the Dawes Rolls . The Cohanim (or Kohanim) is a patrilineal priestly line of descent in Judaism . According to the Bible , the ancestor of

690-578: A prediction or exact assertion of one's mtDNA Haplogroup . Mitochrondial haplogroups were greatly popularized by the book The Seven Daughters of Eve , which explores mitochondrial DNA. It is not normal for test results to give a base-by-base list of results. Instead, results are normally compared to the Cambridge Reference Sequence (CRS), which is the mitochondria of a European who was the first person to have their mtDNA published in 1981 (and revised in 1999). Differences between

759-493: A specific haplogroup or subclade may be linked to a common geographic origin. The mtDNA, by current conventions, is divided into three regions. They are the coding region (00577-16023) and two Hyper Variable Regions (HVR1 [16024-16569], and HVR2 [00001-00576]). The two most common mtDNA tests are a sequence of HVR1 and HVR2 and a full sequence of the mitochondria. Generally, testing only the HVRs has limited genealogical use so it

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828-725: A tie to regional African heritage. Melungeons are one of numerous multiracial groups in the United States with origins wrapped in myth. The historical research of Paul Heinegg has documented that many of the Melungeon groups in the Upper South were descended from mixed-race people who were free in colonial Virginia and the result of unions between the Europeans and Africans. They moved to the frontiers of Virginia, North Carolina, Kentucky and Tennessee to gain some freedom from

897-706: A trial of mtDNA haplogroups as a predictor of continental origin on individuals in the Human Genetic Diversity Panel (HGDP) and 1000 Genomes (1KGP) datasets, they found that only 14 of 23 haplogroups had a success rate above 50% among the HGDP samples, as did "about half" of the haplogroups in the 1KGP. The authors concluded that, for most people, "mtDNA-haplogroup membership provides limited information about either continental ancestry or continental region of origin." Y-DNA and mtDNA testing may be able to determine with which peoples in present-day Africa

966-456: Is STRs (short tandem repeat). A certain section of DNA is examined for a pattern that repeats (e.g. ATCG). The number of times it repeats is the value of the marker. Typical tests test between 12 and 111 STR markers. STRs mutate fairly frequently. The results of two individuals are then compared to see if there is a match. DNA companies will usually provide an estimate of how closely related two people are, in terms of generations or years, based on

1035-513: Is a type of domestic dog consisting of between 50 and 70 breeds depending on classification. There is no precise definition of 'spitz' but typically most spitz breeds have pricked ears, almond shaped eyes, a pointed muzzle, a double coat, and a tail that curves over the back. The exact origins of spitz dogs remain unknown, though most of the spitzes seen today originate from the Arctic region or from Siberia . Johann Friedrich Gmelin described

1104-560: Is dependent on comparative population size, the number of markers tested, the ancestry informative value of the SNPs tested, and the degree of admixture in the person tested. Earlier ethnicity estimates were often wildly inaccurate, but as companies receive more samples over time, ethnicity estimates have become more accurate. Testing companies such as Ancestry.com will often regularly update their ethnicity estimates, which has caused some controversy from customers as their results update. Usually

1173-554: Is increasingly popular and accessible to have a full sequence. The full mtDNA sequence is only offered by Family Tree DNA among the major testing companies and is somewhat controversial because the coding region DNA may reveal medical information about the test-taker All humans descend in the direct female line from Mitochondrial Eve , a female who lived probably around 150,000 years ago in Africa. Different branches of her descendants are different haplogroups. Most mtDNA results include

1242-399: Is likely to have as many generations of ancestors in their matrilineal information table as in the above patrilineal or Y-DNA case: for further information on this difficulty in traditional genealogy , due to lack of matrilineal surnames (or matrinames), see Matriname . However, the foundation of testing is still two suspected descendants of one person. This hypothesize and test DNA pattern

1311-421: Is limited, and results have been used for personal identification, paternity cases, and inter-population studies. Law enforcement agencies in the US and Europe use autosomal STR data to identify criminals. The mitochondrion is a component of a human cell, and contains its own DNA. Mitochondrial DNA usually has 16,569 base pairs (the number can vary slightly depending on addition or deletion mutations) and

1380-429: Is matching other individuals. Where the individual being tested has a number of consecutive SNPs in common with a previously tested individual in the company's database, it can be inferred that they share a segment of DNA at that part of their genomes. If the segment is longer than a threshold amount set by the testing company, then these two individuals are considered to be a match. Unlike the identification of base pairs,

1449-476: Is more random and unequal from more distant ancestors. Generally, a genealogical DNA test might test about 700,000 SNPs (specific points in the genome). The preparation of a report on the DNA in the sample proceeds in multiple stages: All major service providers use equipment with chips supplied by Illumina . The chip determines which SNP locations are tested. Different versions of the chip are used by different service providers. In addition, updated versions of

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1518-601: Is most evident in the tiny Pomeranian , which was originally a much larger dog closer to the size of a Keeshond before being bred down to make an acceptable court animal. The Keeshond, the Wolfspitz variety of the German Spitz , is an affectionate, loyal, and very energetic pet that was bred as a watchdog for barges (hence the name Dutch Barge Dog). Often, these breeds are recognized for their "smiling" mouths. Other spitzes that have been bred away from working uses are

1587-469: Is much smaller than the human genome DNA which has 3.2 billion base pairs. Mitochondrial DNA is transmitted from mother to child, as it is contained in the egg cell. Thus, a direct maternal ancestor can be traced using mtDNA . The transmission occurs with relatively rare mutations compared to autosomal DNA. A perfect match found to another person's mtDNA test results indicates shared ancestry of possibly between 1 and 50 generations ago. More distant matching to

1656-501: Is often required if DNA evidence is being used to prove or disprove a specific relationship. The X-chromosome SNP results are often included in autosomal DNA tests. Both males and females receive an X-chromosome from their mother, but only females receive a second X-chromosome from their father. The X-chromosome has a special path of inheritance patterns and can be useful in significantly narrowing down possible ancestor lines compared to autosomal DNA. For example, an X-chromosome match with

1725-474: Is related to another person within a certain time frame, or with certainty that he or she is not related. DNA tests are perceived as more scientific, conclusive and expeditious than searching the civil records. However, they are limited by restrictions on lines that may be studied. The civil records are always only as accurate as the individuals having provided or written the information. Y-DNA testing results are normally stated as probabilities: For example, with

1794-476: Is similar to such lysosomal storage diseases in humans as Tay–Sachs disease and Gaucher's disease . The Schipperke is also prone to some other physical problems as reported by the Orthopedic Foundation for Animals . DNA research has shown that Schipperkes have a rising rate of inbreeding in their population. The earlier common references to Schipperkes suggest that they may have originated in

1863-568: Is the length of the shared DNA (or the percentage of the genome that is shared). Most companies will show the customers how many cMs they share and across how many segments. From the number of cMs and segments, the relationship between the two individuals can be estimated; however, due to the random nature of DNA inheritance, relationship estimates, especially for distant relatives, are only approximate. Some more distant cousins will not match at all. Although information about specific SNPs can be used for some purposes (e.g., suggesting likely eye color),

1932-470: Is the same one used for autosomal DNA and Y-DNA. As discussed above, autosomal tests usually report the ethnic proportions of the individual. These attempt to measure an individual's mixed geographic heritage by identifying particular markers, called ancestry informative markers or AIM, that are associated with populations of specific geographical areas. Geneticist Adam Rutherford has written that these tests "don’t necessarily show your geographical origins in

2001-603: Is unevenly distributed geographically. Direct-to-consumer DNA test companies have often labeled haplogroups by continent or ethnicity (e.g., an "African haplogroup" or a "Viking haplogroup"), but these labels may be speculative or misleading. Autosomal DNA is contained in the 22 pairs of chromosomes not involved in determining a person's sex. Autosomal DNA recombines in each generation, and new offspring receive one set of chromosomes from each parent. These are inherited exactly equally from both parents and roughly equally from grandparents to about 3x great-grandparents. Therefore,

2070-404: Is usually black, but sometimes blonde or cream-colored (some blondes have a silkier coat); very rarely they can have a liver-red coloration. The coat is shiny. Dogs of this breed usually weigh 3–9 kg (6.6–19.8 lb). The Schipperke has no particular health problems. The UK Kennel Club survey puts the median lifespan of the breed at 13 years old, with about 20% living to 15 years or more. Of

2139-546: Is usually the "6th-cousin or further" level. However, due to the random nature of which, and how much, DNA is inherited by each tested person from their common ancestors, precise relationship conclusions can only be made for close relations. Traditional genealogical research , and the sharing of family trees, is typically required for interpretation of the results. Autosomal tests are also used in estimating ethnic mix. MtDNA and Y-DNA tests are much more objective. However, they give considerably fewer DNA matches, if any (depending on

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2208-773: The American Eskimo Dog , Alaskan Klee Kai , German Spitz , Volpino Italiano and Japanese Spitz . Genealogical DNA test A genealogical DNA test is a DNA -based genetic test used in genetic genealogy that looks at specific locations of a person's genome in order to find or verify ancestral genealogical relationships, or (with lower reliability) to estimate the ethnic mixture of an individual. Since different testing companies use different ethnic reference groups and different matching algorithms, ethnicity estimates for an individual vary between tests, sometimes dramatically. Three principal types of genealogical DNA tests are available, with each looking at

2277-509: The Flemish language . However while they were occasionally seen on barges it was not their original or primary function, and in the areas of Leuven and Brussels "scheper" (which sounds similar to "schipper"; a German Shepherd dog is known in Dutch as a "Duitse scheper") was the word for shepherd, making the name translate as "little shepherd". Before the name "Schipperke" was officially taken,

2346-843: The Karelian Bear Dog , are more difficult to train as companion dogs . Some breeds, such as the Pomeranian , have manes . Several spitz breeds (such as huskies ) are bred for one purpose only. However it is common for many spitz breeds (such as the Russian laikas ) to be general purpose dogs in their native lands, used for hunting, hauling, herding, and guarding. Smaller breeds have faces that resemble fox faces, while larger breeds have faces that resemble wolf faces. Spitzes, with their thick fur, fluffy ruffs, curled tails and small muzzles and ears, have been bred into non-working dogs designed to be companions or lap dogs . This trend

2415-467: The mitochondrial DNA is located in the egg cell. However, a Y-DNA test can only be taken by a male, as only males have a Y-chromosome . A genealogical DNA test is performed on a DNA sample obtained by cheek-scraping (also known as a buccal swab ), spit-cups, mouthwash , or chewing gum . Typically, the sample collection uses a home test kit supplied by a service provider such as 23andMe , AncestryDNA , Family Tree DNA , or MyHeritage . After following

2484-428: The "old" Y-chromosomal Adam and so a much older man became Y-Chromosomal Adam. Many companies offer a percentage breakdown by ethnicity or region. Generally the world is specified into about 20–25 regions, and the approximate percentage of DNA inherited from each is stated. This is usually done by comparing the frequency of each Autosomal DNA marker tested to many population groups. The reliability of this type of test

2553-1106: The "open-source" genetic genealogy site GEDmatch to find relatives of the suspect in the Golden State Killer case. ). The Atlantic magazine commented in 2018 that "Now, the floodgates are open. ..a small, volunteer-run website, GEDmatch.com, has become ... the de facto DNA and genealogy database for all of law enforcement." Family Tree DNA announced in February 2019 it was allowing the FBI to access its DNA data for cases of murder and rape. However, in May 2019 GEDmatch initiated stricter rules for accessing their autosomal DNA database and Family Tree DNA shut down their Y-DNA database ysearch.org, making it more difficult for law enforcement agencies to solve cases. Common concerns about genealogical DNA testing are cost and privacy issues . Some testing companies, such as 23andMe and Ancestry , retain samples and results for their own use without

2622-558: The 1600's in Flanders . Schipperkes were first recognized as a formal breed in the 1880s, their standard being written in 1889. Much of what is known of their origins and early history comes from Chasse et Pêche ( French for "Hunting and Fishing") magazine, articles from which were translated into English and published by the English magazine The Stockkeeper . The breed name "Schipperke" means "little boatman" or "little captain" in

2691-628: The 36 deceased dogs in the survey, the oldest dog was 17 + 1 ⁄ 2 years old. There is a known case where a Schipperke lived to be 18 to 19 years old. Nonetheless, inactivity, lack of exercise, and over-feeding are very harmful, and can lead to joint and skeletal problems and tooth, heart, lung, or digestive conditions. Schipperke's primary orthopedic problem tends to be luxating patella and Legg-Perthes syndrome (knee and hip disorders, respectively). Some Schipperkes have demonstrated tendencies to epilepsy, although there are no tests: these seem to be related to genetic transmission. The one caveat to

2760-512: The CRS and testers are usually very few, thus it is more convenient than listing one's raw results for each base pair. Note that in HVR1, instead of reporting the base pair exactly, for example 16,111, the 16 is often removed to give in this example 111. The letters refer to one of the four bases (A, T, G, C) that make up DNA. The Y-chromosome is one of the 23rd pair of human chromosomes. Only males have

2829-480: The Cohanim is Aaron , brother of Moses . Many believe that descent from Aaron is verifiable with a Y-DNA test: the first published study in genealogical Y-Chromosome DNA testing found that a significant percentage of Cohens had distinctively similar DNA, rather more so than general Jewish or Middle Eastern populations. These Cohens tended to belong to Haplogroup J , with Y-STR values clustered unusually closely around

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2898-497: The Illumina chip may test different sets of SNP locations. The list of SNP locations and base pairs at that location is usually available to the customer as "raw data". The raw data can be uploaded to some other genealogical service providers to produce an additional interpretation and matches. For additional genealogical analysis the data can also be uploaded to GEDmatch (a third-party web based set of tools that analyzes raw data from

2967-707: The Leuvenaar, a 40-pound dog often found in the Louvain region of Belgium and employed to guard flocks and transport. These dogs are apparently the foundational breed for both the modern, and smaller, Schipperke and the modern, and larger, Black Belgian Shepherd Dog, also known as the Groenendael . In World War II , the Belgian Resistance used the dogs to run messages between various resistance hideouts and cells, to which occupying Nazi forces were none

3036-745: The Near East well before the dispersal of Jewish groups in the Diaspora. Support for a Near Eastern origin of this lineage comes from its high frequency in our sample of Bedouins , Yemenis (67%), and Jordanians (55%) and its precipitous drop in frequency as one moves away from Saudi Arabia and the Near East (Fig. 4). Moreover, there is a striking contrast between the relatively high frequency of J-58* in Jewish populations (»20%) and Kohanim (»46%) and its vanishingly low frequency in our sample of non-Jewish populations that hosted Jewish diaspora communities outside of

3105-501: The Near East." Recent phylogenetic research for haplogroup J-M267 placed the "Y-chromosomal Aaron" in a subhaplogroup of J-L862, L147.1 (age estimate 5631-6778yBP yBP): YSC235>PF4847/CTS11741>YSC234>ZS241>ZS227>Z18271 (age estimate 2731yBP). Genealogical DNA tests have become popular due to the ease of testing at home and their usefulness in supplementing genealogical research . Genealogical DNA tests allow for an individual to determine with high accuracy whether he or she

3174-642: The Schipperke's good health is MPS IIIB , a genetic mutation that occurs in at most 15% of the total breed population. It only occurs in Schipperkes. The University of Pennsylvania School of Veterinary Medicine has developed a test for the disease and began accepting samples in April 2003. Clinical signs appear between two and four years of age, and there are no known cures or treatments. The disease affects balance, negotiation of obstacles (such as stairs), and

3243-428: The ancestors of African Americans taken in slavery came from regions of West Africa. The African-American movement to discover and identify with ancestral tribes has burgeoned since DNA testing became available. African Americans usually cannot easily trace their ancestry during the years of slavery through surname research , census and property records, and other traditional means. Genealogical DNA testing may provide

3312-435: The breed was also known colloquially as "Spits" or "Spitzke", a name commonly used to describe a small dog with pointed ears. They were also occasionally called "Moorke", meaning "little black animal". Schipperkes are widely referred to in the United States, albeit erroneously, as "Belgian canal barge dogs" or "Belgian ship dogs." Apparently, however, their history dates to a seventeenth-century black shepherd dog commonly called

3381-457: The canonical Native American Haplogroups, A , B , C , D or X . The vast majority of Native American individuals belong to one of the five identified mtDNA Haplogroups . Thus, being in one of those groups provides evidence of potential Native American descent. However, DNA ethnicity results cannot be used as a substitute for legal documentation. Native American tribes have their own requirements for membership, often based on at least one of

3450-498: The company doing the testing), since they are limited to relationships along a strict female line and a strict male line respectively. MtDNA and Y-DNA tests are utilized to identify archeological cultures and migration paths of a person's ancestors along a strict mother's line or a strict father's line. Based on MtDNA and Y-DNA, a person's haplogroup (s) can be identified. The mtDNA test can be taken by both males and females, because everyone inherits their mtDNA from their mother, as

3519-401: The data bases against which the new sample is tested, and the algorithms used to determine a match, are proprietary and specific to each company. The unit for segments of DNA is the centimorgan (cM). For comparison, a full human genome is about 6500 cM. The shorter the length of a match, the greater are the chances that a match is spurious. An important statistic for subsequent interpretation

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3588-449: The difference between their results. A person's haplogroup can often be inferred from their STR results, but can be proven only with a Y-chromosome SNP test (Y-SNP test). A single-nucleotide polymorphism (SNP) is a change to a single nucleotide in a DNA sequence. Typical Y-DNA SNP tests test about 20,000 to 35,000 SNPs. Getting a SNP test allows a much higher resolution than STRs. It can be used to provide additional information about

3657-575: The equivalent of one great-grandparent of Native American ancestry. By the early 19th century, substantial families of Free Persons of Color had been established in the Chesapeake Bay area who were descended from free people during the colonial period; most of those have been documented as descended from white men and African women (servant, slave or free). Over time various groups married more within mixed-race, black or white communities. According to authorities like Salas, nearly three-quarters of

3726-479: The ethnic origins of a particular lineage may be best suited to an mtDNA test or a Y-DNA test. For recent genealogy, exact matching on the mtDNA full sequence is used to confirm a common ancestor on the direct maternal line between two suspected relatives. Because mtDNA mutations are very rare, a nearly perfect match is not usually considered relevant to the most recent 1 to 16 generations. In cultures lacking matrilineal surnames to pass down, neither relative above

3795-479: The key information is the percentage of DNA shared by two individuals. This can indicate the closeness of the relationship. However, it does not show the roles of the two individuals, e.g., 50% shared suggests a parent/child relationship, but it does not identify which individual is the parent. Various advanced techniques and analyses can be done on this data. This includes features such as In-common/Shared Matches, Chromosome Browsers, and Triangulation. This analysis

3864-423: The kit instructions on how to collect the sample, it is returned to the supplier for analysis. The sample is then processed using a technology known as DNA microarray to obtain the genetic information. There are three major types of genealogical DNA tests: Autosomal (which includes X-DNA), Y-DNA, and mtDNA. Y-DNA and mtDNA cannot be used for ethnicity estimates, but can be used to find one's haplogroup , which

3933-512: The lack of regularly recorded matrilineal surname information in many cultures (see Matrilineal surname ). Autosomal DNA combined with genealogical research has been used by adoptees to find their biological parents, has been used to find the name and family of unidentified bodies and by law enforcement agencies to apprehend criminals (for example, the Contra Costa County District Attorney's office used

4002-578: The last 1000 years, meaning their timeframe approaches the genealogical era (c.1500 onwards). New sub-clades of haplogroups may be discovered when an individual tests, especially if they are non-European. Most significant of these new discoveries was in 2013 when the haplogroup A00 was discovered, which required theories about Y-chromosomal Adam to be significantly revised. The haplogroup was discovered when an African-American man tested STRs at FamilyTreeDNA and his results were found to be unusual. SNP testing confirmed that he does not descend patrilineally from

4071-464: The main service providers). Raw data can also be uploaded to services that provide health risk and trait reports using SNP genotypes. These reports may be free or inexpensive, in contrast to reports provided by DTC testing companies, who charge about double the cost of their genealogy-only services. The implications of individual SNP results can be ascertained from raw data results by referring to SNPedia.com. The major component of an autosomal DNA test

4140-450: The number of markers (one of two or more known variants in the genome at a particular location – known as Single-nucleotide polymorphisms or SNPs) inherited from a specific ancestor decreases by about half with each successive generation; that is, an individual receives half of their markers from each parent, about a quarter of those markers from each grandparent; about an eighth of those markers from each great-grandparent, etc. Inheritance

4209-440: The past. They show with whom you have common ancestry today." The haplogroups determined by Y-DNA and mtDNA tests are often unevenly geographically distributed. Many direct-to-consumer DNA tests described this association to infer the test-taker's ancestral homeland. Most tests describe haplogroups according to their most frequently associated continent (e.g., a "European haplogroup"). When Leslie Emery and collaborators performed

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4278-482: The racial barriers of the plantation areas. Several efforts, including a number of ongoing studies, have examined the genetic makeup of families historically identified as Melungeon. Most results point primarily to a mixture of European and African, which is supported by historical documentation. Some may have Native American heritage as well. Though some companies provide additional Melungeon research materials with Y-DNA and mtDNA tests, any test will allow comparisons with

4347-461: The relationship between two individuals and to confirm haplogroups. All human men descend in the paternal line from a single man dubbed Y-chromosomal Adam , who lived probably between 200,000 and 300,000 years ago. A 'family tree' can be drawn showing how men today descend from him. Different branches of this tree are different haplogroups. Most haplogroups can be further subdivided multiple times into sub-clades. Some known sub-clades were founded in

4416-536: The results at the continental level are accurate, but more specific assertions of the test may turn out to be incorrect. The interest in genealogical DNA tests has been linked to both an increase in curiosity about traditional genealogy and to more general personal origins. Those who test for traditional genealogy often utilize a combination of autosomal, mitochondrial, and Y-Chromosome tests. Those with an interest in personal ethnic origins are more likely to use an autosomal test. However, answering specific questions about

4485-584: The results of current and past Melungeon DNA studies. The pre-columbian indigenous people of the United States are called "Native Americans" in American English. Autosomal testing, Y-DNA, and mtDNA testing can be conducted to determine the ancestry of Native Americans . A mitochondrial Haplogroup determination test based on mutations in Hypervariable Region 1 and 2 may establish whether a person's direct female line belongs to one of

4554-507: The risk of frostbite , square proportions and thick fur that grows on the paws protects the dogs from sharp ice. Many spitz breeds, like the Japanese Akita and Chow Chow , retain wolf-like characteristics such as independence, suspiciousness, and aggression towards unfamiliar humans and other dogs, and they require much training and socialization when they are puppies before they become manageable in an urban environment. Some, such as

4623-515: The same surname a perfect 37/37 marker test match gives a 95% likelihood of the most recent common ancestor (MRCA) being within 8 generations, while a 111 of 111 marker match gives the same 95% likelihood of the MRCA being within only 5 generations back. As presented above in mtDNA testing , if a perfect match is found, the mtDNA test results can be helpful. In some cases, research according to traditional genealogy methods encounters difficulties due to

4692-563: The type as Canis pomeranus in his 1788 revision of Systema Naturae . Dogs of spitz type have been depicted on the tombs of the IVth dynasty of Egypt. Toy dogs of spitz type have been depicted since 500 B.C. in Ancient Greek pottery . Spitzes are well suited to living in harsh northern climates. They often have an insulating , waterproof undercoat that is denser than the topcoat to trap warmth. Small, upright ears help to reduce

4761-458: The wiser. DNA laboratory studies have shown that the Schipperke is more closely related to the Pomeranian dog than the Belgian sheepdog and is very closely tied to Spitz type breeds. DNA studies also show a steady increase of inbreeding in Schipperkes. Spitz A spitz ( pronounced [ʃpɪts] ; German for 'pointed', in reference to the pointed muzzle)

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