Whole-genome resequencing of grass carp (Ctenopharyngodon idella) for genome-wide association study on GCRV resistance
文献类型： 外文期刊
作者： Yu, Chengchen 1 ; Jiang, Yuchen 1 ; Zhang, Chenyang 1 ; Wu, Minglin 3 ; Gui, Lang 1 ; Xu, Xiaoyan 1 ; Li, Jiale 1 ; Shen, Yubang 1 ;
作者机构： 1.Shanghai Ocean Univ, Minist Agr & Rural Affairs, Key Lab Freshwater Aquat Genet Resources, Shanghai 201306, Peoples R China
2.Shanghai Ocean Univ, Shanghai Engn Res Ctr Aquaculture, Shanghai 201306, Peoples R China
3.Anhui Acad Agr Sci, Fisheries Res Inst, Hefei 230031, Anhui, Peoples R China
关键词： Ctenopharyngodon idella; GCRV; GWAS; SNP; Whole-genome resequencing
期刊名称：AQUACULTURE （ 影响因子：3.9； 五年影响因子：4.1 ）
ISSN： 0044-8486
年卷期： 2024 年 592 卷
页码：
收录情况： SCI
摘要： Grass carp (Ctenopharyngodon idella) is a highly productive freshwater fish species that annually contributes significant economic value to the aquaculture industry. However, its production is frequently affected by grass carp haemorrhagic disease (GCHD), which is caused by grass carp reovirus (GCRV). To elucidate the molecular mechanism of GCRV resistance in C. idella, whole-genome resequencing of both susceptible and resistant C. idella was conducted, yielding a total of 3,941,776 high quality single nucleotide polymorphisms (SNPs). A genomewide association study (GWAS) then identified five significant SNPs, located on chromosomes 2, 3, 5, 6 and 10, associated with the trait of GCRV resistance. An integrative analysis of the GWAS and a previous transcriptome study was performed, and five common genes were identified, including b4galt2 (beta-1,4-galactosyltransferase 2), kif2c (Kinesin family member 2C), jmjd8 (JmjC domain containing 8), selenom (Selenoprotein M), and znfx1 (Zinc finger NFX1-type containing 1). This study serves as a valuable basis for implementing markerassisted selection (MAS) to improve GCRV resistance in C. idella breeding programs, and provides insight into developing methods to control the spread of GCHD.
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