Genetic variation during four generations of selective breeding in the pearl oyster Pinctada fucata
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Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

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Q96

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    Abstract:

    during selection over four-generations for shell height using nine microsatellite loci. The mean effective number of alleles per locus () ranged from 1.435 to 2.096 among the four JCS generations. The mean allelic richness (odecreased from 0.492 to 0.269, suggesting there was a decrease in genetic diversity. In general, the allelic frequency remained stable over the four generations, but fluctuated up and down, apparently randomly, 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.

    Reference

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管云雁,刘文广,何毛贤. 马氏珠母贝选育群体4个世代的遗传变异[J]. Jounal of Fishery Sciences of China, 2013,[volume_no](4):764-770

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  • Online: July 18,2013
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