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Haplogroup CZ (mtDNA)
In human mitochondrial genetics, the Haplogroup CZ is a human mitochondrial DNA (mtDNA) haplogroup. Origin Haplogroup CZ is a descendant of haplogroup M8 and is a parent to the haplogroups C and Z. The C and Z subclades share a common ancestor dated to approximately 36,500 years ago.Behar et al., 2012b Distribution Today, CZ is found in eastern Asian, Central Asian, Siberian, indigenous American, and European populations, and is most common in Siberian populations. It is recognized by a genetic marker at 249d. Subclades Tree This phylogenetic tree of haplogroup CZ subclades is based on the paper by Mannis van Oven and Manfred Kayser ''Updated comprehensive phylogenetic tree of global human mitochondrial DNA variation'' and subsequent published research. *M **M8 ***CZ ****C ****Z See also *Genealogical DNA test *Genetic genealogy *Human mitochondrial genetics *Population genetics *Human mitochondrial DNA haplogroups In human genetics, a human mitochondrial DNA hapl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogroup M8 (mtDNA)
In human mitochondrial genetics, Haplogroup M8 is a Human mitochondrial DNA haplogroup, human mitochondrial DNA (mtDNA) haplogroup. Origin Haplogroup M8 is a descendant of Haplogroup M (mtDNA), haplogroup M. Haplogroup M8 is divided into subclades M8a, C and Z. Distribution It is an East Asian haplogroup. Today, haplogroup M8 is found at its highest frequency in indigenous populations of East Siberia such as Evenks, Evenk and Yukaghir people, Yukaghir. Haplogroup M8 is one of the most common mtDNA haplogroups among Yakuts, Yakut, Tuvans, Tuvan. Haplogroup C (mtDNA), Haplogroup C, the most major one of three subclades, is highly distributed among the Indigenous peoples of the Americas, Amerindian and Indigenous peoples of East Siberia. Haplogroup Z, another one of three subclades, is highly distributed among Evens, Even from Kamchatka Peninsula, Kamchatka (8/39 Z1a2a, 3/39 Z1a3, 11/39 = 28.2% Z total). mtDNA Haplogroup M8a, a not well known one of the three subclades, is highly d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethnic Groups In Europe
Europeans are the focus of European ethnology, the field of anthropology related to the various ethnic groups that reside in the List of sovereign states and dependent territories in Europe, states of Europe. Groups may be defined by common ancestry, language, faith, historical continuity, etc. There are no universally accepted and precise definitions of the terms "ethnic group" and "nationality", but in the context of European ethnography in particular, the terms ''ethnic group'', ''people'', ''nationality'' and ''ethno-linguistic group'' are used as mostly synonymous. Preference may vary in usage with respect to the situation specific to the individual countries of Europe, and the context in which they may be classified by those terms. The total number of national minority populations in Europe is estimated at 105 million people, or 14% of 770 million Europeans in 2002.Christoph Pan, Beate Sibylle Pfeil (2002), Minderheitenrechte in Europa. Handbuch der europäischen Volksgrupp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Genetics
Population genetics is a subfield of genetics that deals with genetic differences within and among populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as Adaptation (biology), adaptation, speciation, and population stratification, population structure. Population genetics was a vital ingredient in the emergence of the Modern synthesis (20th century), modern evolutionary synthesis. Its primary founders were Sewall Wright, J. B. S. Haldane and Ronald Fisher, who also laid the foundations for the related discipline of quantitative genetics. Traditionally a highly mathematical discipline, modern population genetics encompasses theoretical, laboratory, and field work. Population genetic models are used both for statistical inference from DNA sequence data and for proof/disproof of concept. What sets population genetics apart from newer, more phenotypic approaches to modelling evolution, such as evolutionary game theory and evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Mitochondrial Genetics
Human mitochondrial genetics is the study of the genetics of human mitochondrial DNA (the DNA contained in human mitochondria). The human mitochondrial genome is the entirety of hereditary information contained in human mitochondria. Mitochondria are small structures in cells that generate energy for the cell to use, and are hence referred to as the "powerhouses" of the cell. Mitochondrial DNA (mtDNA) is not transmitted through nuclear DNA (nDNA). In humans, as in most multicellular organisms, mitochondrial DNA is inherited only from the mother's ovum. There are theories, however, that paternal mtDNA transmission in humans can occur under certain circumstances. Mitochondrial inheritance is therefore non-Mendelian, as Mendelian inheritance presumes that half the genetic material of a fertilized egg (zygote) derives from each parent. This allowed the creation of mitochondrial DNA haplogroups to study population genetics. Eighty percent of mitochondrial DNA codes for mitocho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Genealogy
Genetic genealogy is the use of genealogical DNA tests, i.e., DNA profiling and DNA testing, in combination with traditional genealogical methods, to infer genetic relationships between individuals. This application of genetics came to be used by family historians in the 21st century, as DNA tests became affordable. The tests have been promoted by amateur groups, such as Surname DNA project, surname study groups or regional genealogical groups, as well as research projects such as the Genographic Project. about 30 million people had been tested. As the field developed, the aims of practitioners broadened, with many seeking knowledge of their ancestry beyond the recent centuries, for which traditional pedigrees can be constructed. History The investigation of surnames in genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genealogical DNA Test
A genealogical DNA test is a DNA-based Genetic testing, 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 ethnicity, 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 a different part of the genome and being useful for different types of genealogical research: Genealogical DNA test#Autosomal DNA (atDNA) testing, autosomal (atDNA), Genealogical DNA test#Mitochondrial DNA (mtDNA) testing, mitochondrial (mtDNA), and Genealogical DNA test#Y-chromosome (Y-DNA) testing, Y-chromosome (Y-DNA). Autosomal tests may result in a large number of DNA matches to both males and females who have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Marker
A genetic marker is a gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species. It can be described as a variation (which may arise due to mutation or alteration in the genomic loci) that can be observed. A genetic marker may be a short DNA sequence, such as a sequence surrounding a single base-pair change ( single nucleotide polymorphism, SNP), or a long one, like minisatellites. Background For many years, gene mapping was limited to identifying organisms by traditional phenotypes markers. This included genes that encoded easily observable characteristics, such as blood types or seed shapes. The insufficient number of these types of characteristics in several organisms limited the possible mapping efforts. This prompted the development of gene markers, which could identify genetic characteristics that are not readily observable in organisms (such as protein variation). Types Some commonly used types of genetic markers ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siberia
Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states since the lengthy conquest of Siberia, which began with the fall of the Khanate of Sibir in 1582 and concluded with the annexation of Chukotka in 1778. Siberia is vast and sparsely populated, covering an area of over , but home to roughly a quarter of Russia's population. Novosibirsk, Krasnoyarsk, and Omsk are the largest cities in the area. Because Siberia is a geographic and historic concept and not a political entity, there is no single precise definition of its territorial borders. Traditionally, Siberia spans the entire expanse of land from the Ural Mountains to the Pacific Ocean, with the Ural River usually forming the southernmost portion of its western boundary, and includes most of the drainage basin of the Arctic Ocean. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples Of The Americas
In the Americas, Indigenous peoples comprise the two continents' pre-Columbian inhabitants, as well as the ethnic groups that identify with them in the 15th century, as well as the ethnic groups that identify with the pre-Columbian population of the Americas as such. These populations exhibit significant diversity; some Indigenous peoples were historically hunter-gatherers, while others practiced agriculture and aquaculture. Various Indigenous societies developed complex social structures, including pre-contact monumental architecture, organized city, cities, city-states, chiefdoms, state (polity), states, monarchy, kingdoms, republics, confederation, confederacies, and empires. These societies possessed varying levels of knowledge in fields such as Pre-Columbian engineering in the Americas, engineering, Pre-Columbian architecture, architecture, mathematics, astronomy, History of writing, writing, physics, medicine, Pre-Columbian agriculture, agriculture, irrigation, geology, minin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogroup C (mtDNA)
In human mitochondrial genetics, Haplogroup C is a human mitochondrial DNA (mtDNA) haplogroup. Origin Haplogroup C is believed to have arisen in East Asia some 24,000 years before present. It is a descendant of the haplogroup M. Haplogroup C shares six mutations downstream of the MRCA of haplogroup M with haplogroup Z and five mutations downstream of the MRCA of haplogroup M with other members of haplogroup M8. This macro-haplogroup is known as haplogroup M8'CZ or simply as haplogroup M8. Distribution Haplogroup C is found in Northeast Asia (including Siberia) and the Americas. In Eurasia, Haplogroup C is especially frequent among populations of arctic Siberia, such as Nganasans, Dolgans, Yakuts, Evenks, Evens, Yukaghirs, and Koryaks. Haplogroup C is one of five mtDNA haplogroups found in the indigenous peoples of the Americas, the others being A, B, D, and X. The subclades C1b, C1c, C1d, and C4c are found in the first people of the Americas. C1a is found only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples Of Siberia
Siberia is a vast region spanning the North Asia, northern part of the Asian continent and forming the Asiatic portion of Russia. As a result of the Russian conquest of Siberia (16th to 19th centuries) and of the subsequent Special settlements in the Soviet Union, population movements during the Soviet era (1917–1991), the modern-day demographics of Siberia is dominated by Russians, ethnic Russians (Siberians, Siberiaks) and other Slavs. However, there remains a slowly increasing number of Indigenous peoples, Indigenous groups, accounting for about 5% of the total Siberian population (about 1.6–1.8 million), some of which are closely genetically related to Indigenous peoples of the Americas. History In Kamchatka Peninsula, Kamchatka, the Itelmens' uprisings against Russian rule in 1706, 1731, and 1741, were crushed. During the first uprising the Itelmen were armed with only stone weapons, but in later uprisings they used gunpowder weapons. The Russian Cossacks faced tougher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Asia
Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Persian suffix "-stan" (meaning ) in both respective native languages and most other languages. The region is bounded by the Caspian Sea to the southwest, European Russia to the northwest, China and Mongolia to the east, Afghanistan and Iran to the south, and Siberia to the north. Together, the five Central Asian countries have a total population of around million. In the pre-Islamic and early Islamic eras ( and earlier) Central Asia was inhabited predominantly by Iranian peoples, populated by Eastern Iranian-speaking Bactrians, Sogdians, Khwarezmian language, Chorasmians, and the semi-nomadic Scythians and Dahae. As the result of Turkic migration, Central Asia also became the homeland for the Kazakhs, Kyrgyzs, Volga Tatars, Tatars, Turkmens, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
