High-resolution linkage and quantitative trait locus mapping using an interspecific cross between Argopecten irradians irradians(♀) and A. purpuratus (♂)
作者机构：MOE Key Laboratory of Marine Genetics and BreedingCollege of Marine Life SciencesOcean University of ChinaQingdao 266003China Key Laboratory of Mariculture and Stock Enhancement in North China's SeaMinistry of Agriculture and Rural AffairsDalian Ocean UniversityDalian 116023China Laboratory for Marine Biology and BiotechnologyPilot National Laboratory for Marine Science and TechnologyQingdao 266237China Laboratory for Marine Fisheries Science and Food Production ProcessesPilot National Laboratory for Marine Science and TechnologyQingdao 266237China Marine Science and Engineering CollegeQingdao Agricultural UniversityQingdao 266109China
出 版 物：《Marine Life Science & Technology》 (海洋生命科学与技术（英文）)
年 卷 期：2020年第2卷第2期
页 面：123-134页
核心收录：
基 金：the Grant support from National Natural Science Foundation of China(U1706203,31172404 and 31572618) Taishan Scholar Project Fund of Shandong Province of China,and Youth Talent Program Supported by Laboratory for Marine Fisheries Science and Food Production Processes,Pilot National Laboratory for Marine Science and Technology(Qingdao)(2018-MFS-T07)
主 题：Scallop Genetic map 2b-RAD genotyping Quantitative trait locus mapping Interspecific hybridization
摘 要：The bay scallop and Peruvian scallop are economically important *** hybrids of these two scallops outperformed both of their parent species in multiple growth traits but exhibited decreased fertility,which provides good models for the study of heterosis and species *** mapping serves as a chromosomal-level framework to investigate the molecular mechanisms of hybridization and *** this study,high-resolution linkage maps were constructed for the bay and Peruvian scallops with an interspecific hybrid *** linkage map of the bay scallop covered over 98.9% of the whole genome with 2994 mapped markers and the average marker interval of 0.32 *** the Peruvian scallop,1585 markers were mapped with the average maker interval of 0.51 cM,covering 97.7% of the *** the two linkage maps have 16 linkage groups,corresponding to the haploid chromosome number of the two ***,54.5% of markers exhibited significant deviation from the expected Mendelian ratio of segregation,lending in sights into the intrinsic incompatibility between the two *** related to growth and shell coloration were detected,which could explain 13.1%and 74.9% of the phenotypic variance,*** represents important information for further *** findings are an important addition to the genomic resources for scallop genetic studies,and are especially useful for investigations on genomic incompatibility for hybridization,genome evolution of closely related species,and genetic enhancement programs in aquaculture.
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