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Y-chromosome Haplogroups In Populations Of The World
The following articles are lists of human Y-chromosome DNA haplogroups found in populations around the world. *Y-DNA haplogroups by ethnic group *Y-DNA haplogroups in populations of Europe *Y-DNA haplogroups in populations of the Caucasus *Y-DNA haplogroups in populations of the Near East *Y-DNA haplogroups in populations of North Africa *Y-DNA haplogroups in populations of Sub-Saharan Africa *Y-DNA haplogroups in populations of South Asia *Y-DNA haplogroups in populations of East and Southeast Asia *Y-DNA haplogroups in populations of Central and North Asia *Y-DNA haplogroups in populations of Oceania *Y-DNA haplogroups in indigenous peoples of the Americas *List of haplogroups of historic people See also *Recent African origin of modern humans *Genetic history of the Middle East *Genetics and archaeogenetics of South Asia *Genetic history of Europe *Genetic history of Italy *Genetic history of North Africa *Genetic history of Indigenous peoples of the Americas *Genetic histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Y-chromosome DNA Haplogroups
In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by specific mutations in the non- recombining portions of DNA on the male-specific Y chromosome (Y-DNA). Individuals within a haplogroup share similar numbers of short tandem repeats (STRs) and single-nucleotide polymorphisms (SNPs). The Y-chromosome accumulates approximately two mutations per generation, "one mutation in every 30 million base pairs" and Y-DNA haplogroups represent significant branches of the Y-chromosome phylogenetic tree, each characterized by hundreds or even thousands of unique mutations. The Y-chromosomal most recent common ancestor (Y-MRCA), often referred to as Y-chromosomal Adam, is the most recent common ancestor from whom all currently living humans are descended patrilineally. Y-chromosomal Adam is estimated to have lived around 236,000 years ago in Africa. By examining other population bottlenecks, most Eurasian men trace their descent from a man who lived in Afric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recent African Origin Of Modern Humans
The recent African origin of modern humans or the "Out of Africa" theory (OOA) is the most widely accepted paleoanthropology, paleo-anthropological model of the geographic origin and Early human migrations, early migration of early modern human, anatomically modern humans (''Human, Homo sapiens''). It follows the early expansions of hominins out of Africa, accomplished by ''Homo erectus'' and then ''Neanderthal, Homo neanderthalensis''. The model proposes a "monogenism, single origin" of ''Human, Homo sapiens'' in the taxonomic sense, precluding parallel evolution in other regions of traits considered anatomically modern humans, anatomically modern, but not precluding multiple Archaic human admixture with modern humans, admixture between ''H. sapiens'' and archaic humans in Europe and Asia. ''H. sapiens'' most likely developed in the Horn of Africa between 300,000 and 200,000 years ago, although an alternative hypothesis argues that diverse morphological features of ''H. sap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Y-DNA Haplogroups
Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are great apes characterized by their hairlessness, bipedalism, and high intelligence. Humans have large brains, enabling more advanced cognitive skills that facilitate successful adaptation to varied environments, development of sophisticated tools, and formation of complex social structures and civilizations. Humans are highly social, with individual humans tending to belong to a multi-layered network of distinct social groups — from families and peer groups to corporations and political states. As such, social interactions between humans have established a wide variety of values, social norms, languages, and traditions (collectively termed institutions), each of which bolsters human society. Humans are also highly curious: the desire to understand and influence phenomena has motivated humanity's development of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Studies On Jews
Genetic studies of Jews are part of the population genetics discipline and are used to analyze the ancestry of Jewish populations, complementing research in other fields such as history, linguistics, archaeology, and paleontology. These studies investigate the origins of various Jewish ethnic divisions. In particular, they examine whether there is a common genetic heritage among them. The medical genetics of Jews are studied for population-specific diseases. Studies on Jewish populations have been principally conducted using three types of genealogical DNA tests: autosomal (atDNA), mitochondrial (mtDNA), and Y-chromosome (Y-DNA). atDNA tests, which look at the entire DNA mixture, show that Jewish populations have tended to form genetic isolates – relatively closely related groups in independent communities with most in a community sharing significant ancestry – with Ashkenazi Jews forming the largest such group. mtDNA and Y-DNA tests look at maternal and paternal ancestry r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of The British Isles
Genetic may refer to: *Genetics, in biology, the science of genes, heredity, and the variation of organisms **Genetic, used as an adjective, refers to genes ***Genetic disorder, any disorder caused by a genetic mutation, whether inherited or de novo ***Genetic mutation, a change in a gene **** Heredity, genes and their mutations being passed from parents to offspring **Genetic recombination, refers to the recombining of alleles resulting in a new molecule of DNA * Genetic relationship (linguistics), in linguistics, a relationship between two languages with a common ancestor language *Genetic algorithm In computer science and operations research, a genetic algorithm (GA) is a metaheuristic inspired by the process of natural selection that belongs to the larger class of evolutionary algorithms (EA). Genetic algorithms are commonly used to g ..., in computer science, a kind of search technique modeled on evolutionary biology See also * Genetic memory (other) {{dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of The Iberian Peninsula
The ancestry of modern Iberians (comprising the Spaniards, Spanish and Portuguese people, Portuguese) is consistent with the geographical situation of the Iberian Peninsula in the South-west corner of Europe, showing characteristics that are largely typical in Southern and Western Europeans. As is the case for most of the rest of Southern Europe, the principal ancestral origin of modern Iberians are Early European Farmers who arrived during the Neolithic. The large predominance of Y-Chromosome Haplogroup R1b, common throughout Western Europe, is also testimony to a sizeable input from various waves of (predominantly male) Western Steppe Herders that originated in the Pontic-Caspian Steppe during the Bronze Age. Modern Iberians' genetic inheritance largely derives from the pre-Roman inhabitants of the Iberian Peninsula who were deeply Romanization (cultural), Romanized after the conquest of the region by the ancient Romans: * Pre-Indo-European languages, Pre-Indo-European and In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of Indigenous Peoples Of The Americas
The genetic history of the Indigenous peoples of the Americas is divided into two distinct periods: the initial peopling of the Americas from about 20,000 to 14,000 years ago (20–14 kya), and European contact, after about 500 years ago. The first period of the genetic history of Indigenous Americans is the determinant factor for the number of genetic lineages, zygosity mutations, and founding haplotypes present in today's Indigenous American populations. Indigenous American populations descend from and share ancestry with an Ancient East Asian lineage which diverged from other East Asian peoples prior to the Last Glacial Maximum (26–18 kya). They also received geneflow from Ancient North Eurasians, a distinct Paleolithic Siberian population with deep affinities to both "European hunter-gatherers" (e.g. Kostenki-14) and "Basal East Asians" (e.g. Tianyuan man). They later dispersed throughout the Americas after about 16,000 years ago (exceptions being the Na-Dene and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of North Africa
Genetic may refer to: *Genetics, in biology, the science of genes, heredity, and the variation of organisms **Genetic, used as an adjective, refers to genes ***Genetic disorder, any disorder caused by a genetic mutation, whether inherited or de novo ***Genetic mutation, a change in a gene **** Heredity, genes and their mutations being passed from parents to offspring **Genetic recombination, refers to the recombining of alleles resulting in a new molecule of DNA * Genetic relationship (linguistics), in linguistics, a relationship between two languages with a common ancestor language *Genetic algorithm In computer science and operations research, a genetic algorithm (GA) is a metaheuristic inspired by the process of natural selection that belongs to the larger class of evolutionary algorithms (EA). Genetic algorithms are commonly used to g ..., in computer science, a kind of search technique modeled on evolutionary biology See also * Genetic memory (other) {{dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of Italy
The genetic history of Italy includes information around the formation, ethnogenesis, and other DNA-specific information about the inhabitants of Italy. Modern Italians mainly descend from the ancient peoples of Italy, including Indo-European speakers ( Romans and other Latins, Falisci, Picentes, Umbrians, Oscans, Sicels, Elymians, and Adriatic Veneti, as well as Magno-Greeks, Cisalpine Gauls and Iapygians) and pre-Indo-European speakers (Etruscans, Ligures, Rhaetians, Euganei, Sicani, Nuragic peoples). Based on DNA analysis, there is evidence of regional genetic substructure and continuity within modern Italy dating back to antiquity. In their admixture ratios, Italians are similar to other Southern Europeans of the Mediterranean region, and that is being of primarily Neolithic Early European Farmer ancestry, along with smaller, but still significant, amounts of Mesolithic Western Hunter-Gatherer, Bronze Age Steppe pastoralist (Indo-European speakers) and Chalcolithic o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of Europe
The genetic history of Europe includes information around the formation, ethnogenesis, and other DNA-specific information about populations indigenous, or living in Europe. European early modern human (EEMH) lineages between 40 and 26 ka (Aurignacian) were still part of a large Western Eurasian "meta-population", related to Central and Western Asian populations. Divergence into genetically distinct sub-populations within Western Eurasia is a result of increased selection pressure and founder effects during the Last Glacial Maximum (LGM, Gravettian). By the end of the LGM, after 20 ka, A Western European lineage, dubbed west European hunter-gatherer (WHG) emerged from the Solutrean refugium during the European Mesolithic. These Mesolithic hunter-gatherer cultures are subsequently replaced in the Neolithic Revolution as a result of the arrival of Early European Farmer (EEF) lineages derived from mesolithic populations of West Asia (Anatolia and the Caucasus). In the Europ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics And Archaeogenetics Of South Asia
Genetics and archaeogenetics of South Asia is the study of the genetics and archaeogenetics of the ethnic groups of South Asia. It aims at uncovering these groups' genetic histories. The geographic position of the Indian subcontinent makes its biodiversity important for the study of the early dispersal of anatomically modern humans across Asia. Based on mitochondrial DNA (mtDNA) variations, genetic unity across various South Asian subpopulations have shown that most of the ancestral nodes of the phylogenetic tree of all the mtDNA types originated in the subcontinent. Conclusions of studies based on Y chromosome variation and autosomal DNA variation have been varied. The genetic makeup of modern South Asians can be described at the deepest level as a combination of West Eurasian (related to ancient and modern people in Europe and West Asia) ancestries with divergent East Eurasian ancestries. The latter primarily include a proposed indigenous South Asian component (termed ''Anc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic History Of The Middle East
The genetic history of the Middle East is the subject of research within the fields of human population genomics, archaeogenetics and Middle Eastern studies. Researchers may use use Y-DNA, mtDNA, other autosomal DNA, whole genome, or whole exome information to identify the genetic history of ancient and modern populations of Arabia, Egypt, the Levant, Mesopotamia, Persia, Turkey, and other areas. History and overview Developments in DNA sequencing in the 1970s and 1980s provided researchers with the tools needed to study human genetic variation and the genetics of human populations to discover founder populations of modern people groups and human migrations. In 2005, National Geographic launched The Genographic Project, led by 12 prominent scientists and researchers, to study and map historical human migration patterns by collecting and analyzing DNA samples from hundreds of thousands of people from around the world. National Geographic stopped selling Geno kits on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
