A composite method for mapping quantitative trait loci without interference of female achiasmatic and gender effects in silkworm,Bombyx mori
作者单位：State Key Laboratory of Silkworm Genome BiologySouthwest University Key Laboratory of Sericulture biology and Genetic breedingAgricultural MinistryCollege of BiotechnologySouthwest University Institute of Entomology and Molecular BiologyCollege of Life SciencesChongqing Normal University
会议名称：《中国蚕学会第九届青年学术研讨会》
会议日期：2017年
学科分类：090504[农学-特种经济动物饲养（含：蚕、蜂等）] 0905[农学-畜牧学] 09[农学]
关 键 词：Bombyx mori Quantitative trait loci mapping Female achiasmate gender effects Cocoon shell weight
摘 要：The silkworm,Bombyx mori,is an economically important insect that was domesticated more than 5000 years *** major economic traits focused on by breeders are quantitative traits,and an accurate and efficient QTL mapping method is necessary to explore their genetic ***,current widely used QTL mapping models are not well suited for silkworm because they ignore female achiasmate and gender *** this study,we propose a composite method combining rational population selection and special mapping methods to map QTL in *** determining QTL for cocoon shell weight（CSW）,we demonstrated the effectiveness of this *** the CSW mapping process,only 56 markers were used and five loci or chromosomes were detected,more than in previous ***,loci on chromosomes 1 and 11 dominated and accounted for 35.10% and 15.03% of the phenotypic variance *** previous studies,epistasis was detected between loci on chromosomes 11 and *** mapping results demonstrate the power and convenience of this method for QTL mapping in silkworm,and this method may inspire the development of similar approaches for other species with special genetic characteristics.