中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 遗传分化对多样性种植下主栽和间栽水稻品种抗稻瘟病效率的影响 云南农业大学学报(自然科学) 2015,30 (3) 338-345
Position: Home > Articles > Impact of Genetic Divergence between Intercropped Rice Varieties on Their Efficiency of Resistance to Rice Blast Diseases Journal of Yunnan Agricultural University(Natural Science) 2015,30 (3) 338-345

遗传分化对多样性种植下主栽和间栽水稻品种抗稻瘟病效率的影响

作  者：
郎杰;韩光煜;徐俊采;王静文;王云月;卢宝荣
单  位：
云南农业大学植物保护学院
关键词：
栽培稻;遗传分化;InDel分子标记;多样性混栽;稻瘟病防治
摘  要：
水稻品种多样性的种植方式对控制稻瘟病非常重要,但对其作用机理的了解甚少,其中,品种间遗传阻隔效应是众多假说之一。为验证水稻多样性混栽种植模式下,品种组合主栽和间栽的品种遗传分化水平对其田间抗稻瘟病效果的影响,本研究建立了利用插入/缺失(In Del)中性分子标记快速和准确检测水稻品种间遗传分化的技术方法。该方法可以对主栽和间栽品种之间的遗传分化系数(GDI)进行检测和定量描述,其变化范围在0.00~1.00之间,GDI数值越高表示品种间遗传分化水平越高。利用GDI结合云南省在10年内广泛用于多样性种植的主栽和间栽水稻品种组合,筛选出19对品种组合进行其GDI与抗稻瘟病防治效率相关性分析的田间试验。根据对各组合品种田间稻瘟病发生情况的调查发现,不同搭配组合在田间所表现出的稻瘟病防治效果存在很大差异。进一步分析的结果表明,主栽和间栽品种的GDI与其田间的稻瘟病防效具有显著正相关性(R2>0.92,P<0.01),验证了在多样性混栽种植模式中,水稻组合品种间的遗传分化水平对其田间抗稻瘟病效率有显著影响的遗传假设。该发现不仅揭示了水稻多样性种植模式下,主栽和间栽水稻品种之间遗传分化影响其田间稻瘟病防效的遗传机制,还为混合间栽中不同水稻品种搭配组合的选择及对其田间生产中稻瘟病发生的预测提供了实用技术。
译  名：
Impact of Genetic Divergence between Intercropped Rice Varieties on Their Efficiency of Resistance to Rice Blast Diseases
作  者：
LANG Jie;HAN Guangyu;XU Juncai;WANG Jingwen;WANG Yunyue;LU Baorong;College of Plant Protection,Yunnan Agricultural University;Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering,Institute of Biodiversity Science,Fudan University;
关键词：
cultivated rice;;genetic divergence;;In Del molecular marker;;intercropping;;rice blast control
摘  要：
The utilization of varietal diversity of rice under an intercropping mode is proven to be effective for control rice blast diseases. However,the underlying mechanisms of such blast control from varietal intercropping are still not clear. Among the other hypotheses,we propose one that genetic divergence of intercropped rice varieties plays a roles in enhancing resistance rice varieties to blast diseases. To test this hypothesis,we developed a rapid,accurate and effective method to determine the level of geneticdivergence between rice varieties using neutral molecular markers( In Del). This method can quantitatively determine the level of genetic divergence index( GDI),ranged hypothetically between 0. 00 ~1. 00,between the intercropped varieties. A large number of widely used rice varieties for intercropping in Yunnan were examined for their GDI using the In Del markers. We selected 19 varietal combinations with either high or low GDI for field experiments to determine the correlation between genetic divergence of intercropped rice varieties and their efficiency of resistance to rice blast diseases in the field. Results from field experiments indicated significant positive correlation( R2> 0. 92,P < 0. 01) between GDI of intercropped varieties( major and minor) and their efficiency of blast control. Rice varieties under the intercropping mode with higher genetic divergence level demonstrated a significant impact on their efficiency of resistance to rice blast in the field. This finding has its significant implications not only for understanding the underlying mechanisms of varietal diversity for blast control in rice,but also for predicting the possible field performance of resistance to rice blast in the field.

相似文章

导出引用
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

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46