当前位置: 首页 > 文章 > Pi-ta、Pi-b基因在江苏粳稻穗颈瘟抗性育种中的价值分析 华北农学报 2012,27 (6) 141-145
Position: Home > Articles > Analysis on Breeding Value of Pi-ta,Pi-bGenes in Japonica Rice Breeding with Neck Resistance in Jiangsu Acta Agriculturae Boreali-Sinica 2012,27 (6) 141-145

Pi-ta、Pi-b基因在江苏粳稻穗颈瘟抗性育种中的价值分析

作  者:
王军;杨杰;杨金欢;范方军;朱金燕;陈志德;仲维功
单  位:
江苏省农业科学院粮食作物研究所国家水稻改良中心南京分中心
关键词:
水稻;稻瘟病;穗颈瘟;Pi-ta基因;Pi-b基因;抗病育种
摘  要:
利用稻瘟病抗性基因Pi-ta、Pi-b的功能标记对2009,2010年江苏省粳稻中间试验的部分粳稻品系进行基因型检测,结合穗颈瘟抗性结果,通过关联分析Pi-ta、Pi-b在江苏省粳稻穗颈瘟抗性中的价值。结果表明:Pi-ta、Pi-b基因与江苏省粳稻穗颈瘟的抗性呈正相关,Pi-ta基因2009,2010年的相关系数分别为0.50,0.37;Pi-b基因2009,2010年的相关系数分别为0.55,0.51;Pi-ta、Pi-b基因的联合效应与穗颈瘟抗性正相关系数分别为0.71,0.62。因此,同时携带这2个抗病基因可以大大提高江苏省粳稻穗颈瘟抗性。
译  名:
Analysis on Breeding Value of Pi-ta,Pi-bGenes in Japonica Rice Breeding with Neck Resistance in Jiangsu
作  者:
WANG Jun,YANG Jie,YANG Jin-huan,FAN Fang-jun,ZHU Jin-yan, CHEN Zhi-de,ZHONG Wei-gong(Institute of Food Crops,Jiangsu Academy of Agricultural Sciences,Nanjing Branch of Chinese National Center for Rice Improvement,Nanjing 210014,China)
关键词:
Rice;Blast;Neck blast;Pi-ta gene;Pi-b gene;Disease-resistance breeding
摘  要:
Functional Markers of blast resistance genes Pi-ta,Pi-b were used to detect part of Japonica rice lines in Jiangsu province intermediate experiment of 2009 and 2010 years.Combing with the blast resistance results,the value of Pi-ta,Pi-b in Jiangsu province Japonica rice neck blast resistance was analyzed by correlation analysis.The result indicated that Pi-ta and Pi-b were positively correlated with neck blast resistance of Japonica rice in Jiangsu province.The correlation coefficients of Pi-ta were 0.50 and 0.37 respectively in two years as the correlation coefficients of Pi-b were 0.55 and 0.51.The correlation coefficients of two genes joint effect were 0.71 and 0.62 respectively.Therefore,carrying both of this two resistance genes can greatly improve the resistance of Japonica rice in Jiangsu province.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊