Two dominant genes in barley (Hordeum vulgare L.) complementarily encode perfect resistance to Japanese soil-borne wheat mosaic virus.

IF 2 4区 农林科学 Q2 AGRONOMY Breeding Science Pub Date : 2022-12-01 DOI:10.1270/jsbbs.22046
Kaori Okada, Tsuyoshi Tanaka, Shuichi Fukuoka, Youko Oono, Kohei Mishina, Tetsuo Oikawa, Kazuhiro Sato, Tsuneo Kato, Takao Komatsuda, Kiyoshi Namai
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引用次数: 2

Abstract

Japanese soil-borne wheat mosaic virus (Furovirus) is a damaging pathogen of wheat and barley. This virus can survive in the soil for several decades, so the deployment of resistant cultivars represents the only practical control measure. Here, a genetic analysis has identified two regions of the barley genome-one on chromosome 2H and the other on chromosome 3H-as harboring gene(s) encoding resistance to this virus. The joint presence of both loci, termed Jmv1 and Jmv2, made the plants essentially immune, with resistance being dominant over susceptibility at each locus. Phylogenetic analysis showed that the virus is not closely related to the type Furovirus species Soil-borne wheat mosaic virus. There was a difference between the RNA1- and RNA2-based phylogenies of the virus species in Furovirus implying the independent segregation of the virus subgenomes.

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大麦(Hordeum vulgare L.)的两个显性基因互补编码了对日本土传小麦花叶病毒的完全抗性。
日本土传小麦花叶病毒是一种危害小麦和大麦的病原菌。这种病毒可以在土壤中存活几十年,因此部署抗病品种是唯一可行的控制措施。在这里,一项遗传分析已经确定了大麦基因组的两个区域——一个在染色体2H上,另一个在染色体3h上——含有编码抵抗这种病毒的基因。这两个基因座的共同存在,称为Jmv1和Jmv2,使植物基本上具有免疫力,抗性在每个基因座上都占主导地位。系统发育分析表明,该病毒与糠状病毒型种土传小麦花叶病毒亲缘关系不密切。在Furovirus中,基于RNA1和rna2的病毒种系统发育存在差异,这意味着病毒亚基因组的独立分离。
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来源期刊
Breeding Science
Breeding Science 农林科学-农艺学
CiteScore
4.90
自引率
4.20%
发文量
37
审稿时长
1.5 months
期刊介绍: Breeding Science is published by the Japanese Society of Breeding. Breeding Science publishes research papers, notes and reviews related to breeding. Research Papers are standard original articles. Notes report new cultivars, breeding lines, germplasms, genetic stocks, mapping populations, database, software, and techniques significant and useful for breeding. Reviews summarize recent and historical events related breeding. Manuscripts should be submitted by corresponding author. Corresponding author must have obtained permission from all authors prior to submission. Correspondence, proofs, and charges of excess page and color figures should be handled by the corresponding author.
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