文献类型: 外文期刊
作者: Li Xia;He Kang-lai;Wang Zhen-ying;Bai Shu-xiong;Li Xia
作者机构:
关键词: insect resistance;Ostrinia furnacalis (Guenee);QTL;SSR;Zea mays L
期刊名称: AGRICULTURAL SCIENCES IN CHINA
ISSN: 1671-2927
年卷期: 2010 年 9 卷 1 期
页码:
收录情况: SCI
摘要: Asian corn borer, Ostrinia furnacalis (Guenee), is the most important pest of maize in China and Southeast Asia. The objective of this study was to understand the genetic basis for Asian corn borer resistance. The study included 162 F(2:3) populations derived from Mc37 (resistant) x Zi330 (susceptible) and field data were collected in 2004 and 2005. A linkage map was constructed from 118 SSR markers. Combined quantitative trait loci (QTL) analysis combined across environments was performed by composite interval mapping method (CIM). Four QTLs with additive effects were detected for resistance to Asian corn borer leaf feeding damage in chromosome bins 1.08, 2.04/05, 4.01, and 10.04. Three putative QTLs were detected for Asian corn borer stalk damage in chromosome bins 1.01, 2.05, and 9.01. Maize resistance to Asian corn borer and European corn borer, O. nubilalis (Hubner), may share a common mechanism. Genes responsible for DIMBOA biosynthesis are in chromosome bin 4.01 and may increase the observed resistance to Asian corn borer leaf feeding.
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