Characterization of ancestral and derived Y-chromosome haplotypes of New World Native populations

Article Abstract:

Characterization of derived and ancestral Y-chromosome haplotypes of indigenous New World populations using analysis of the allelic polymorphisms in seven Y-specific microsatellite loci and a Y-specific alphoid system with 27 variants in 89 Y chromosomes with the DYS199T allele of Amerindian and Na-Dene language users is discussed. 0A appears to be one of the prevalent founder paternal lineages of indigenous peoples of the New World based on analysis of the Y-specific microsatellite mutation rate in 1,743 father-son transmissions and pooled data.

Argentina, Russia, Statistical Data Included, Usage, Asia, Emigration and immigration, Native Americans, Native North Americans, Navajos, South American native peoples, Native South Americans, Caucasian race, Whites, Linguistics, Indigenous peoples, Inuit, America, Paleo-Indians, Bering Land Bridge

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The Himalayas as a directional barrier to gene flow

Article Abstract:

The genetic affinities of three populations from Nepal, Kathmandu and Tibet are investigated to evaluate whether the Himalayan mountain range represent a geographic barrier for gene flow between the Tibetan plateau and the South Asian subcontinent. The study results suggest that the Tibetans and Nepalese are in part descendants of Tibeto-Burman speaking groups originating from Northeast Asia.

China, Asia, Nepal, Analysis, Tibet, Natural history, Nepalese, Nucleic acids, Haplotypes, Tibetans, Himalaya Mountains, Gene flow, Nucleic acid isolation

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Evidence of amino acid diversity-enhancing selection within humans and among primates at the candidate sperm-receptor gene PKDREJ

Article Abstract:

The PKDREJ sequence is determined from human and nonhuman primates in order to conduct statistical tests of inter- and intraspecific sequence variation. The results have shown that PKDREJ has demonstrated characteristics expected for a sperm receptor for the mammalian egg-coat zona pellucida (ZP) glycoproteins.

DNA binding proteins, Primates, Amino acids

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