Characterization and Genome Changes of New Amphiploids from Wheat Wide Hybridization  

作　　者：Xiang Guo Qinghua Shi Jing Wang Yanlin Hou Yuhai Wang Fangpu Han 

机构地区：[1]State Kay Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences [2]University of Chinese Academy of Sciences

出　　处：《Journal of Genetics and Genomics》2015年第8期459-461,共3页遗传学报（英文版）

基　　金：supported by the National High Technology Research and Development Program of China (No. 2010AA100101)

摘　　要：The introduction of alien genes or chromosome fragments from wild related species into wheat （Triticum spp.） has been considered valuable for wheat breeding （Valkoun, 2001）. Several relatives, such as Secale cereale （Gupta and Shepherd, 1993; Ma et al., 2000）, Thinopyrum elongatum （Liu et al., 2008）, Th. intermedium （Cao et al., 2014） and Th. ponticum （Li et al., 2008） showed distinct applications of introgression of interesting genes or traits into wheat. However, there are still some challenges in using these genetic resources. The introgressed alien fragments often bring genes with potentially negative impacts on the traits. In this letter, we mainly focus on multi-strategies for synthesis of polyploids between wheat and rye, Th. elongatum, Th. intermedium and Th. ponticum. We have successfully selected different novel ploidy triticale and trititrigia lines which carried excellent disease-resistance genes and could provide essential genetic resources for wheat breeding.The introduction of alien genes or chromosome fragments from wild related species into wheat （Triticum spp.） has been considered valuable for wheat breeding （Valkoun, 2001）. Several relatives, such as Secale cereale （Gupta and Shepherd, 1993; Ma et al., 2000）, Thinopyrum elongatum （Liu et al., 2008）, Th. intermedium （Cao et al., 2014） and Th. ponticum （Li et al., 2008） showed distinct applications of introgression of interesting genes or traits into wheat. However, there are still some challenges in using these genetic resources. The introgressed alien fragments often bring genes with potentially negative impacts on the traits. In this letter, we mainly focus on multi-strategies for synthesis of polyploids between wheat and rye, Th. elongatum, Th. intermedium and Th. ponticum. We have successfully selected different novel ploidy triticale and trititrigia lines which carried excellent disease-resistance genes and could provide essential genetic resources for wheat breeding.

关 键 词：TH GENE GISH 

分 类 号：S512.1[农业科学—作物学]