Hierarchical gene diversity and genetic structure of tribal populations of Andhra Pradesh, India

Gene diversity and genetic structure of tribal populations of Andhra Pradesh, India, have been analyzed under a hierarchical model consisting of five regions of the state, tribes within the regions, and local subpopulations within the tribes. Average gene diversity has been estimated from gene frequency data for 15 polymorphic loci by using nested gene diversity analysis of G ST . The intralocation coefficient of gene diversity was estimated at 96% of the total, whereas the intertribal, within—and between—regional gene diversities were found to be only 1.90, 0.95, and 1.43%, respectively. The estimate of gene diversity was higher for loci with higher degrees of polymorphism such as ABO, MN, ESD, and PTC and lower for loci with low‐level polymorphism and extreme gene frequencies such as Hb, Tf, PHI, 6PGD, and Hp. The nature of selective preference or neutrality at the loci seems to be important in this respect. Tribes of the plains exhibit the least gene diversity, apparently because of higher gene flow among them. The contribution of loci with intermediate gene frequencies in intertribal and regional gene diversity was found to be higher than for loci with extreme allelic frequencies. These results suggest that the most significant component of variation is between individuals within locations and that variation between local subpopulations is negligible in the genetic structure of a population. Forces like selection, gene flow and drift also influence the diversity depending upon the nature of the locus. © 1993 Wiley‐Liss, Inc

Allele · Allele frequency · Biology · Evolutionary biology · Gene · Gene flow · Gene pool · Genetic diversity · Genetic drift · Genetic variation · Locus (genetics) · Population · Demography · Forensic and Genetic Research · Genetic and phenotypic traits in livestock · Genetic diversity and population structure · Genetics

• Population Substructure and Patterns of Quantitative Variation among the Gollas of Southern Andhra Pradesh, India

  B Mohan Reddy, Alexa Pfeffer et al.•Human Biology•2001

  Añadir item

• Genomic Diversity at Thirteen Short Tandem Repeat Loci in a Substructured Caste Population, Golla, of Southern Andhra Pradesh, India

  B Mohan Reddy, Guangyun Sun et al.•Human Biology•2001

  Añadir item

• Interethnic comparisons of three endogamous groups of West Bengal with respect to two sets of variables

  Open Access•Mahua Sengupta, Bibha Karmakar•International Journal of…•2004

  Añadir item

• The genetics of human populations

  Luigi Luca Cavalli-Sforza•The genetics of human populations•1971

  Añadir item

• Analysis of Gene Diversity in Subdivided Populations

  Open Access•Masatoshi Nei•Proceedings of the National…•1973

  Añadir item

• Environmental Correlates of Population Differentiation in Atlantic Herring

  Open Access•Dorte Bekkevold, Carl Aandré3 et al.•Evolution•2005

  Añadir item

• Isolation by Distance

  Open Access•Sewall Wright•Genetics•1943

  Añadir item

• Estimating F -Statistics for the Analysis of Population Structure

  Open Access•B S Weir, C Clark Cockerham•Evolution•1984

  Añadir item

• A genetical study of the five tribal groups of Andhra Pradesh, India

  Urmila Pingle, B N Mukherjee et al.•Zeitschrift für Morphologie und…•1981

  Añadir item

• Genetic markers in eight endogamous population groups from Andhra Pradesh (South India)

  Hubert Walter, K-P Pahl et al.•Zeitschrift für Morphologie und…•1981

  Añadir item

• A genetic study of some Andhra Pradesh populations

  Open Access•D F Roberts, S S Papiha et al.•Annals of Human Biology•1980

  Añadir item

• The genetic structure of a primate species

  Open Access•Don J Melnick•International Journal of…•1988

  Añadir item

• Genetic structure of three Naikpod subpopulations of Andhra Pradesh, India

  Open Access•Bethi Muralidhar, J D Goud et al.•American Journal of Physical…•1989

  Añadir item