人工合成六倍体小麦与黑麦的可杂交性研究  

Crossability of 102 CIMMYT synthetic hexaploid wheats with Rye

作　　者：杨武云[1] 李俊[1] 胡晓蓉[1] 

机构地区：[1]四川省农业科学院作物研究所,四川成都610066

出　　处：《西南农业学报》2007年第2期218-224,共7页Southwest China Journal of Agricultural Sciences

基　　金：国家自然科学基金(No.30471061);国家863计划(2006AA10Z1C6);四川省国际合作项目;四川省应用基础研究;四川省育种工程资助;四川省育种攻关资助

摘　　要：利用102份从CIMMYT引进的人工合成六倍体小麦与黑麦杂交,分析了人工合成六倍体小麦的可杂交性,结果表明：人工合成小麦的可杂交能力变异很大,从0%~72.49%;其中有11份人工合成小麦的可杂交率超过50%以上,1份人工合成小麦YAR/Aegilops tauschii518的杂交结实率达到72.49%,与中国春相似。通过比较同一个硬粒小麦与不同节节麦或同一个节节麦与不同硬粒小麦的可杂交性,发现硬粒小麦和节节麦都对人工合成小麦的可杂交性具有较强的作用。本实验所筛选的具有高亲和性的人工合成小麦,可作为远缘杂交的新材料,用于转育小麦近缘属种优良基因。102 CIMMYT synthetic hexaploid wheats （SHWs） were employed to cross with rye for evaluating the cressability of SHWs and screening SHWs with high crossability for distant cross. Great variation of the seed set percentage was observed among 102 SHWs ranged from 0 % to 72.49 %. Of 102 SHWs,ll ones possessed the cressability higher than 50 % ,and one （YAR/Aegilops tauschii 518） had a similar crossability as Chinese Spring. Data from the seed set percentage of SHWs with common AB genome donor and different D genome donor or common D genome donor and different AB genome donor,indicated that factors on beth donors （ Durum wheat and Aegilops tauschii ） affected the eressability of SHWs. The SHWs with high crossability could be used as new germplasm for wide cross.

关 键 词：人工合成小麦 黑麦 节节麦 可杂交性 

分 类 号：S512.1[农业科学—作物学]