Mapping of a novel QTL for resistance to cereal cyst nematode in wheat

被引：35
|
作者：
Williams, KJ [1 ]
Willsmore, KL
Olson, S
Matic, M
Kuchel, H
机构：
[1] S Australian Res & Dev Inst, Cooperat Res Ctr Mol Plant Breeding, Urrbrae, SA 5064, Australia
[2] Univ Adelaide, Australian Grain Technol Pty Ltd, Roseworthy, SA 5371, Australia
[3] Univ Adelaide, Urrbrae, SA 5064, Australia
来源：
THEORETICAL AND APPLIED GENETICS | 2006年 / 112卷 / 08期
关键词：
D O I：
10.1007/s00122-006-0251-0
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Cereal cyst nematode (CCN; Heterodera avenae Woll.) is a root pathogen of cereals that can cause severe yield losses in intolerant wheat cultivars. Loci for resistance to CCN, measured by a seedling bioassay, were identified by creating a genetic map based on a Trident/Molineux doubled haploid population of 182 lines. A novel locus accounting for up to 14% of the resistance to CCN was mapped to chromosome 1B of Molineux by association with microsatellite marker loci Xwmc719 and Xgwm140. This locus acts additively with the previously identified CCN resistance loci identified on chromosomes 6B (Cre8) and 2A (Cre5 on the VPM1 segment) in this population to explain 44% of the genetic variance for this major wheat pathogen.
引用
收藏
页码：1480 / 1486
页数：7
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