Construction of high-density linkage maps and QTL mapping for growth-related traits in F1 hybrid Yunlong grouper (Epinephelus moara female x E. lanceolatus male)
文献类型： 外文期刊
作者： Liu, Yang 1 ; Tian, Yongsheng 1 ; Wang, Linna 1 ; Li, Zhentong 1 ; Zhang, Jingjing 1 ; Wu, Yuping 1 ; Chen, Shuai 1 ; Li, Linlin 1 ; Li, Wensheng 5 ; Ma, Wenhui 5 ; Lin, Haowei 5 ; Wang, Qingbin 5 ;
作者机构： 1.Minist Agr & Rural Affairs, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266000, Peoples R China
3.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
4.Chinese Acad Agr Sci, Beijing 100081, Peoples R China
5.Mingbo Aquat Co Ltd, Laizhou 261400, Peoples R China
关键词： Yunlong grouper (Epinephelus moara female x E. lanceolatus male); Linkage map; Comparative genomics; QTL; Growth-related traits
期刊名称：AQUACULTURE （ 影响因子：5.135； 五年影响因子：5.125 ）
ISSN： 0044-8486
年卷期： 2022 年 548 卷
页码：
收录情况： SCI
摘要： Owing to the increasing market demand and emerging grouper aquaculture industry, close attention has been paid to genetic breeding for growth traits in grouper. The construction of linkage maps for quantitative trait loci (QTL) analyses is an essential step for marker-assisted selection (MAS) programs. In this study, we report the first high-density linkage map of Yunlong grouper (Epinephelus moara female x E. lanceolatus male) constructed by sequencing 118 F1 progenies in a full-sib family using restriction site associated DNA (RAD) technology. For the female and male maps, 12,307 and 12,340 single nucleotide polymorphism (SNP) markers were anchored onto 24 linkage groups, spanning 1909.37 and 1933.61 cM, respectively, with an average marker interval of 0.16 cM. QTL mapping revealed 39 significant QTLs for three growth traits. Candidate genes participating in ubiquitin modification, cell adhesion, G-protein coupled receptors, cell proliferation, and calcium transport were identified from these QTLs, including itgb1, col1a1, pdgfc, bmpr1a, pcdhgc5, and cacna1b. The results of this study provide a foundation for genomic and genetic studies and further analyses of the heterosis of some growth traits, thereby facilitating MAS in Yunlong grouper.
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