RFLP MAPPING OF THE YM4 VIRUS-RESISTANCE GENE IN BARLEY

被引:84
作者
GRANER, A
BAUER, E
机构
[1] Institute for Resistance Genetic, Federal Biological Research Centre for Agriculture and Forestry, Grünbach, W-8059
关键词
RESTRICTION FRAGMENT LENGTH POLYMORPHISM; LINKAGE MAP; BAYMV; BAMMV;
D O I
10.1007/BF00222657
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
RFLP (restriction fragment length polymorphism) mapping of a recessive gene (ym4) conferring resistance to barley yellow mosaic and barley mild mosaic virus was performed using progeny of 86 F1 anther-derived doubled haploid lines. Two closely linked RFLP markers that flank the gene at a distance of 1.2 centiMorgans were identified. Using one of these markers (MWG10) we obtained a clear differentiation between resistant and susceptible German cultivars. An analysis of a series of unrelated barley lines with probe MWG10 did not reveal additional RFLP fragments. The use of this probe for both marker-assisted selection and the generation of a high-density map around the resistance locus is discussed.
引用
收藏
页码:689 / 693
页数:5
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