文献类型： 外文期刊
作者： Yao, Na 1 ; Zhang, Yaqun 2 ; Li, Yangzhen 3 ; Hu, Yuanri 1 ; Li, Hengde 2 ;
作者机构： 1.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai, Peoples R China
2.Chinese Acad Fishery Sci, Key Lab Aquat Genom, Minist Agr & Rural Affairs, Beijing, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fishery Res Inst, Qingdao, Peoples R China
关键词： Chinese tongue sole (Cynoglossus semilaevis); hypermelanosis; genomic selection; genome-wide association study; continuous traits; binary traits
期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：5.247； 五年影响因子：5.72 ）
ISSN：
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： Chinese tongue sole (Cynoglossus semilaevis) is an economically important marine fish in China. Generally, the eyeless side of the Chinese tongue sole is white and the side with eyes is brown after metamorphosis, hypermelanosis may still occur in the eyeless side in certain individuals after metamorphosis, which greatly decreases consumer acceptance and market price. In order to study the possibility of genetic improvement, we determined genomic markers in Chinese tongue sole using the genotyping-by-sequencing method and analyzed their association with hypermelanosis area. Genetic analysis showed that hypermelanosis was a complicated quantitative trait, and the estimated heritability for hypermelanosis incidence and area ratio were 0.16 and 0.21, respectively. Genomic selection analysis showed that selection based on hypermelanosis incidence and area ratio had similar reliabilities and prediction accuracies, indicating the feasibility of genetic improvement. Nine loci were significantly associated with hypermelanosis, few of which included genes or flanked genes potentially associated with skin disease, indicating the potential complicated genetic mechanisms underlying hypermelanosis in the Chinese tongue sole.
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