中国水产科学Issue(4)：764-770,7.DOI:10.3724/SP.J.1118.2013.00764
马氏珠母贝选育群体4个世代的遗传变异
Genetic variation during four generations of selective breeding in the pearl oyster Pinctada fucata
摘要
Abstract
We documented variation in the genetic diversity and genetic structure of P. fucata during selection over four-generations for shell height using nine microsatellite loci. The mean effective number of alleles per locus (Ne) ranged from 1.435 to 2.096 among the four JCS generations. The mean allelic richness (Rs) decreased from 3.556 to 2.556, the mean Ho decreased from 0.492 to 0.269, suggesting there was a decrease in genetic diversity. In gen-eral, the allelic frequency remained stable over the four generations, but fluctuated up and down, apparently ran-domly, between generations. For example, the frequency of the HHM20-158 bp allele changed regularly from mid to high levels. Our results suggest that persistent selective breeding resulted in reduced genetic diversity and somewhat stable genetic structure in pearl oyster.关键词
马氏珠母贝/选育/遗传变异/微卫星Key words
Pinctada fucata/selected breeding/genetic variation/microsatellite分类
生物科学引用本文复制引用
..马氏珠母贝选育群体4个世代的遗传变异[J].中国水产科学,2013,(4):764-770,7.基金项目
中国科学院知识创新工程重要方向项目(KZCX2-EW-Q21) （KZCX2-EW-Q21）
国家科技计划课题(2012AA10A410) （2012AA10A410）
