大豆资源抗疫霉根腐病基因分析  

Analyses of resistance genes to phytophthora root rot in soybean germplasm

作　　者：夏长剑[1] 张吉清[1] 王晓鸣[1] 武小菲[1] 刘章雄[1] 朱振东[1] 

机构地区：[1]中国农业科学院作物科学研究所/国家农作物基因资源与基因改良重大科学工程,北京100081

出　　处：《中国油料作物学报》2011年第4期396-401,共6页Chinese Journal of Oil Crop Sciences

基　　金：国家公益性行业(农业)科研专项(3-20);中国农业科学院作物科学研究所中央级公益性科研院所基本科研业务费专项(082060302-06)

摘　　要：采取下胚轴创伤接种法鉴定156份大豆资源对13个不同毒力基因型大豆疫霉菌株的抗性。结果表明,125份资源分别抗1～13个菌株,占鉴定资源总数的80.13%。125份抗性大豆资源与13个大豆疫霉菌株共产生90种反应型。通过与13个鉴别寄主的反应型比较发现,有9份大豆资源产生的5种反应型与含有已知抗病基因的大豆资源的反应型相同;12份大豆资源产生的5种反应型与已知2个抗病基因组合的反应型一致,另外,还有至少抗1个菌株的104份大豆资源产生的80种反应型,既不同于已知单个抗病基因的反应型,也不同于2个已知抗病基因组合的反应型,推测可能含有新的抗病基因或基因组合。One hundred and fifty six soybean accessions were identified for their reactions to 13 pathotypes of Phytophthora sojae using hypocotyl inoculation technique in greenhouse.31 accessions were found susceptible to all 13 pathotypes,whereas 125 were resistant to one or more pathotypes,and these resistance accessions elicited 90 different reaction types.Phytophthora resistance genes in the resistance accessions were postulated by comparing the reaction types of differential soybean cultivars or lines possessing known as single phytophthora resistance gene.Five reaction types occurred in 9 accessions were consistent with the reaction types of a single gene,while 5 reaction types produced by 12 accessions were consistent with two-gene combinations.Eighty reaction types elicited by 104 accessions could be novel reaction types.

关 键 词：大豆资源 大豆疫霉 抗性鉴定 基因推导 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]