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《Journal of Anhui Agricultural Sciences》 2010-06
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QTL Analysis of Agronomic Traits in Soybean

LV Zhu-zhang et al(Rizhao Polytechnic College,Rizhao,Shandong 276826)  
[Objective] The aim was to analyze QTL of agronomic traits in soybean and provide reference for a discussion on soybean genetic mechanism and genetic breeding.[Method] The composite interval mapping method was used for QTL location and genetic effects analysis on five quantitative traits,including protein content,fat content,yield,100-seed weight and growing period.[Result] The control of these traits 4,4,1,2,5,a total of 16 QTL loci was detected.The genetic contribution rate was in 7.4%-33.7%,among which,a large main-effect QTL of the genetic contribution rate were located in linkage group I Satt562-Sat_219,Sat_219-Satt496,Sat_219-Satt496 interval of the three control protein content QTL sites,their genetic contribution rates were 29.15%,33.7 % and 31.67% respectively,all from the female parent Hefeng 25 plus minor gene;still in O linkage group Satt477-Satt331,Satt331-Satt153 interval of two control growing period QTL loci,their genetic contribution rates were up to 24.69% and 24.96%,also from the female parent Hefeng 25 plus minor gene.In addition,six QTL sites from M linkage group Satt175(protein),A1 linkage group Satt684(oil),F linkage group Satt348(oil),J linkage group Sat_412(oil),C1 linkage group Sat_416(100-seed weight),C1 linkage group Sat_416(growing period) marks only 0.01 cM were detected.[Conclusion] QTL sites which have effects on the five important agronomic traits in soybean were located.
【Fund】: 国家自然科学基金资助项目(30490250)
【CateGory Index】: S565.1
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