Introgression of High Yield Genes from Lycopersicon hirsutum acc.LA1777 Using CAPS Marker  

作　　者：LI Hong WANG Xiao-xuan SONG Ming GAO Jian-chang GUO Yan-mei ZHU De-wei DAI Shan-shu DU Yong-chen 

机构地区：[1]Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China [2]Horticulture and Landscape College, Southwest University, Chongqing 400716, P.R.China

出　　处：《Agricultural Sciences in China》2007年第5期552-558,共7页中国农业科学（英文版）

基　　金：supported by the Natural Science Foundation of Beijing(6042023);the Key Laboratory of Vegetable Genetics and Physiology,Ministry of Agriculture,China.

摘　　要：The idea behind this study is to show that using high yield genes from a wild tomato can enrich tomato breeding resources and accelerate tomato breeding programs. In this study, the near-isogenic line TA1229 containing a 24-cM introgression at the bottom of chromosome 1 from Lycopersicon acc. LA1777, affects several higher yield traits. The TA1229×9706 BC1 population was analyzed by marker-assisted selection and the traits of the population were evaluated. Twenty-three recombinant individuals that carried a shorter segment than TA1229 were obtained. Among them, 16 lines with the chromosome 1 recombinant segment can increase tomato yield and a QTL affecting yield was found between TG53 and TG158. Sixteen recombinant lines are useful to improve the tomato variety.The idea behind this study is to show that using high yield genes from a wild tomato can enrich tomato breeding resources and accelerate tomato breeding programs. In this study, the near-isogenic line TA1229 containing a 24-cM introgression at the bottom of chromosome 1 from Lycopersicon acc. LA1777, affects several higher yield traits. The TA1229×9706 BC1 population was analyzed by marker-assisted selection and the traits of the population were evaluated. Twenty-three recombinant individuals that carried a shorter segment than TA1229 were obtained. Among them, 16 lines with the chromosome 1 recombinant segment can increase tomato yield and a QTL affecting yield was found between TG53 and TG158. Sixteen recombinant lines are useful to improve the tomato variety.

关 键 词：CAPS QTL marker-assisted selection high yield TOMATO 

分 类 号：S641.2[农业科学—蔬菜学]