Fisheries Science

, Volume 77, Issue 4, pp 591–597

Genetic differentiation of wild and hatchery Oujiang color common carp: potential application to the identification of escapees

  • Yuqing Ma
  • Chenghui Wang
  • Jun Wang
  • Xinxin Yang
  • Xiang Bi
  • Lihua Xu
Original Article Aquaculture

DOI: 10.1007/s12562-011-0359-2

Cite this article as:
Ma, Y., Wang, C., Wang, J. et al. Fish Sci (2011) 77: 591. doi:10.1007/s12562-011-0359-2

Abstract

The escape or release of cultured and domesticated organisms into the wild poses a threat to the genetic integrity of natural populations. Based on data from 17 microsatellite loci, the genetic differentiation between wild and hatchery Oujiang color common carp Cyprinus carpio var. color was investigated, and its potential application for identifying the escapees of hatchery strains was assessed using Bayesian genetic assignment. No significant differences were observed between pooled hatchery and pooled wild populations in terms of allelic richness (AR), observed heterozygosity (HO), and inbreeding coefficient (FIS). Analysis of molecular variance and pairwise FST comparisons suggested significant genetic differentiation between hatchery strains and between hatchery and wild populations, which was further confirmed by principal components analysis and Bayesian clustering analysis. Bayesian genetic alignment showed high self-assignment accuracy (ranging from 86.0 to 96.0%) in the original populations, demonstrating the ability of this technique to identify hatchery Oujiang color common carp escapees in the wild population.

Keywords

Cyprinus carpio L.Hatchery strainsEscapeeMicrosatelliteGenetic differentiationAssignment

Copyright information

© The Japanese Society of Fisheries Science 2011

Authors and Affiliations

  • Yuqing Ma
    • 1
  • Chenghui Wang
    • 1
  • Jun Wang
    • 1
  • Xinxin Yang
    • 1
  • Xiang Bi
    • 1
  • Lihua Xu
    • 1
  1. 1.Key Laboratory of Aquatic Genetic Resources and Utilization (certificated by Ministry of Agriculture)Shanghai Ocean UniversityShanghaiChina