Genetic Structure of Wild Boar (Sus Scrofa) Populations from East Asia Based on Microsatellite Loci Analyses

Overview

Journal BMC Genet

Publisher Biomed Central

Specialties Biotechnology
Molecular Biology

Date 2014 Jul 19

PMID 25034725

Citations 13

Authors

Sung Kyoung Choi

Ji-Eun Lee

Young-Jun Kim

Mi-Sook Min

Inna Voloshina

Alexander Myslenkov

Jang Geun Oh

Tae-Hun Kim

Nickolay Markov

Ivan Seryodkin

Naotaka Ishiguro

Li Yu

Ya-Ping Zhang

Hang Lee

Kyung Seok Kim

Affiliations

Soon will be listed here.

Abstract

Background: Wild boar, Sus scrofa, is an extant wild ancestor of the domestic pig as an agro-economically important mammal. Wild boar has a worldwide distribution with its geographic origin in Southeast Asia, but genetic diversity and genetic structure of wild boar in East Asia are poorly understood. To characterize the pattern and amount of genetic variation and population structure of wild boar in East Asia, we genotyped and analyzed microsatellite loci for a total of 238 wild boar specimens from ten locations across six countries in East and Southeast Asia.

Results: Our data indicated that wild boar populations in East Asia are genetically diverse and structured, showing a significant correlation of genetic distance with geographic distance and implying a low level of gene flow at a regional scale. Bayesian-based clustering analysis was indicative of seven inferred genetic clusters in which wild boars in East Asia are geographically structured. The level of genetic diversity was relatively high in wild boars from Southeast Asia, compared with those from Northeast Asia. This gradient pattern of genetic diversity is consistent with an assumed ancestral population of wild boar in Southeast Asia. Genetic evidences from a relationship tree and structure analysis suggest that wild boar in Jeju Island, South Korea have a distinct genetic background from those in mainland Korea.

Conclusions: Our results reveal a diverse pattern of genetic diversity and the existence of genetic differentiation among wild boar populations inhabiting East Asia. This study highlights the potential contribution of genetic variation of wild boar to the high genetic diversity of local domestic pigs during domestication in East Asia.

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