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Genetic architecture of three Turbinella pyrum varieties (Linnaeus, 1758) from the southeast coast of India
Author(s) -
Chandra Shekar Mootapally,
Arularasan Sabapathy,
Nathani Neelam M.,
Zaman Galib Uz,
Joshi Chaitanya G.
Publication year - 2016
Publication title -
marine ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 58
eISSN - 1439-0485
pISSN - 0173-9565
DOI - 10.1111/maec.12312
Subject(s) - genetic diversity , biology , inbreeding , genetic variation , microsatellite , allele , population , analysis of molecular variance , evolutionary biology , genetic variability , zoology , genetic architecture , loss of heterozygosity , ecology , genetics , demography , genotype , quantitative trait locus , gene , sociology
The genetic diversity and variation of three pseudo‐species of the commercially important Indian conch Turbinella pyrum from the southeast coast of India were studied. A total of 88 individuals was genotyped at 12 loci and differences in the genetic diversity among genetic groups were correlated with known population histories. The study identified 535 alleles and all the studied loci were highly polymorphic. The number of alleles ranged between four and 29 with a global mean of 14.861. The global means of the observed and expected heterozygosities were 0.774 and 0.891, respectively. The estimated within‐population inbreeding value ( F IS = 0.131) indicated a shortfall of heterozygosity in the populations. An analysis of molecular variance showed that 5% of the total variation was due to differences between genetic groups. The Bayesian approach revealed strong distinctiveness in the three genetic groups studied. Overall microsatellite analysis revealed less genetic diversity in all studied genetic groups and significant genetic variation among the three pseudo‐species. The study highlights the significant distinctiveness of the pseudo‐species of T. pyrum and the need for appropriate conservation efforts in order to prevent further losses of their genetic diversity.