Chromosomal locations in common wheat of three new leaf rust resistance genes from Triticum monococcum

被引：13

作者：

Hussien, T ^{[1
]}

Bowden, RL ^{[1
]}

Gill, BS ^{[1
]}

Cox, TS ^{[1
]}

机构：

[1] Kansas State Univ, Dept Plant Pathol, Manhattan, KS 66506 USA

来源：

EUPHYTICA | 1998年 / 101卷 / 01期

关键词：

leaf rust; Puccinia recondita f. sp. tritici; resistance genes; Triticum aestivum; Triticum monococcum; wheat;

D O I：

10.1023/A:1018376315133

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Monosomic analysis was conducted to determine chromosomal locations of three new leaf rust resistance genes recently transferred to common wheat (Triticum aestivum) from ir: monococcum. The resistance gene in wheat germplasm line KS92WGRC23 was transferred from T. monococcum ssp. monococcum. The resistance genes found in KS93U3 and KS96WGRC34 were transferred from T. monococcum ssp. aegilopoides. Allelism tests showed that the three resistance genes were unlinked. The three lines were crossed with each of the seven A-genome Wichita monosomic lines. The leaf rust resistance genes in KS92WGRC23, KS93U3, and KS96WGRC34 were located on chromosomes 6A, 1A, and 5A, respectively, by monosomic analysis. These results demonstrate that the three new genes derived from T. monococcum are each different. They also differ from previously reported Lr genes. This information on chromosome location and the development of mapping populations will facilitate molecular tagging of the new genes.

引用

页码：127 / 131

页数：5

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