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Estimates of genetic parameters and genotype-by-environment interaction for inner shell color and inner shell luster in the golden strain of the freshwater mussel Hyriopsis cumingii

文献类型： 外文期刊

作者： Sun, Tianyang 1 ; He, Zhiran 1 ; Bai, Zhiyi 1 ; Zheng, Hanfeng 4 ; Li, Jiale 1 ;

作者机构： 1.Shanghai Ocean Univ, Key Lab Freshwater Aquat Genet Resources, Minist Agr & Rural Affairs, Shanghai 201306, Peoples R China

2.Shanghai Ocean Univ, Shanghai Engn Res Ctr Aquaculture, Shanghai 201306, Peoples R China

3.Shanghai Ocean Univ, Shanghai Collaborat Innovat Aquat Anim Genet & Bre, Shanghai 201306, Peoples R China

4.Chinese Acad Fishery Sci, East China Sea Fishery Res Inst, Key Lab East China Sea & Ocean Fishery Resources E, Shanghai 200090, Peoples R China

关键词： Hyriopsis cumingii; Inner shell color; Inner shell luster; Genetic parameters; Genotype-by-environment interaction

期刊名称：AQUACULTURE REPORTS （ 影响因子：3.385； 五年影响因子：3.645 ）

ISSN： 2352-5134

年卷期： 2022 年 22 卷

页码：

收录情况： SCI

摘要： Color is an important trait of pearls which significantly affects their economic value. Golden seawater pearls with excellent luster are becoming popular among consumers, but golden freshwater pearls are rare. Hyriopsis cumingii is the most important freshwater mussel for pearl production in China and a selective breeding program has recently been developed to improve the yellowness and luster of the inner shell of H. cumingii for better production of golden freshwater pearls. As part of this breeding program, it has been necessary to evaluate the genetic parameters of the target traits and possible genotype-by-environment interactions. In this study, we investigated the effects of the environment on the genetic parameters of the inner shell color and luster of F-1 golden strain H. cumingii, reared at two sites (Chongming and Wuyi). Inner shell color parameters and inner shell luster were recorded in 570 19-month-old individuals. Microsatellite-based DNA parentage analysis was used to assign the mussels to 19 maternal half-sib families, including 41 full-sib families. The results showed that the estimated heritability of the inner shell color parameters L*, a*, b* and dE were low, 0.13 +/- 0.04, 0.14 +/- 0.04, 0.12 +/- 0.03 and 0.14 +/- 0.05, respectively. The heritability of inner shell luster was medium (0.28 +/- 0.07). The correlations between the genetic and phenotypic parameters for inner shell color and inner shell luster were insignificant at less than 0.8. Genetic correlations between the inner shell color parameters and inner shell luster in Chongming and Wuyi ranged from -0.07 +/- 0.28 to-0.37 +/- 0.24 and showed significant genotype-by-environment interaction. This study demonstrated that inner shell color parameters and inner shell luster could be improved by selective breeding. Environmental influences on genotype for inner shell color and inner shell luster should be taken into account in future selective breeding programs in golden strain H. cumingii.

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