大豆对胞囊线虫抗性与主要农艺性状的相关性分析  

Coevolution of resistance to soybean cyst nematode(SCN) and major agronomic traits of soybean

作　　者：李永春[1] 邢邯[1] 徐冉[2] 盖钧镒[1] 

机构地区：[1]南京农业大学大豆研究所国家大豆改良中心作物遗传与种质创新国家重点实验室,江苏南京210095 [2]山东省农业科学院作物研究所,山东济南250100

出　　处：《中国油料作物学报》2009年第2期219-222,共4页Chinese Journal of Oil Crop Sciences

基　　金：江苏省科学技术厅高技术项目(BG2006308);长江学者和创新团队发展计划资助项目(PCSIRT)

摘　　要：以Pek ing×7605组合分别在南京和济南衍生的重组自交系群体为材料,在抗病性鉴定和考察主要农艺性状的基础上,对抗病性和主要农艺性状进行了相关性分析。结果表明:NJ(RN)P7群体家系抗病性与除粒色外其余质量性状无明显相关关系;与主茎节数和百粒重等数量性状有极显著的正向相关关系,而与不育荚数和生育期则有显著的负向相关关系。JN(RN)P7群体家系的抗病性与4个质量性状均存在显著的相关关系;而与所有考察的数量性状都不存在显著的相关性。由此可见,自然选择效应使得群体遗传结构产生差异,进而导致不同地点衍生的群体其抗病性与农艺性状之间相关性有明显的差异。NJ（RN） P7 and JN（RN） P7, two RIL populations derived from cross Peking×7605 under two ecological sites, were used to study correlation in agronomic traits and resistance to SCN. The results indicated that： For NJ（RN）P7 populationl the correlation between resistance and seed color, nodes per plant and 100 seeds weight were significant, and the correlation between resistance and sterile pods , days to mature were significantly negative. And the correlation between resistance and seed shape, seed color, hilum color and color of hairs on soy- bean were significant for JN（RN） P7 population. It suggested that natural selection resulted the differentiation between two populations deriving from the same cross. And it further resulted different correlation in agronomic traits and resistance to SCN.

关 键 词：大豆 抗病性 农艺性状 相关分析 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]