Identification of quantitative trait loci for growth traits in red swamp crayfish(Procambarus clarkii)
作者机构：National Key Laboratory of Crop Genetic ImprovementShuangshui ShuanglüInstituteHuazhong Agricultural UniversityWuhan430070China Hubei Hongshan LaboratoryWuhan430070China College of FisheriesHuazhong Agricultural UniversityWuhan430070China College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan430070China Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic BeltMinistry of EducationWuhan430070China
出 版 物：《Aquaculture and Fisheries》 (渔业学报（英文）)
年 卷 期：2023年第8卷第6期
页 面：727-736页
核心收录：
基 金：the key research and development program of Hubei province(2021BBA232) the earmarked fund for CARS-48,and the research start-up fund of high level talent introduction of Huazhong Agricultural University
主 题：Red swamp crayfish(Procambarus clarkii) Growth-related traits Simple sequence repeats Association analysis Quantitative trait loci
摘 要：Genetic breeding is an important approach to improve the economic traits of aquaculture ***,the genetic basis for important economic traits of red swamp crayfish,including growth-related traits,has not yet been *** the present study,two full-sib families and two natural populations were employed to identify quantitative trait loci(QTLs)for growth-related traits of red swamp *** total,28 QTLs for five growth-related traits,including body weight,body length,carapace length,carapace width,and abdomen length,were repeatedly identified in more than two families/populations,by means of association analysis;nine of these displayed a heterosis *** phenotypic variations of the five investigated traits explained by the 28 QTLs ranged from 4.2%to 19.0%.Eight additive and three heterosis QTLs were further successfully validated using comparative analysis of favoured alleles between the small and big size crayfish groups in the natural *** conclusion,this study investigated the genetic basis of growth-related traits in red swamp crayfish,which is of great significance for their application in the future molecular breeding of the species.
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