水稻-稻瘟病系统基因对基因关系的证据。

IF 3.1 2区 农林科学 Q2 PLANT SCIENCES
Drissa Silué, Jean Loup Notteghem, Didier Tharreau
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引用次数: 0

摘要

对稻瘟病病菌两个田间分离株进行了杂交。F1子囊孢子之间的全同胞杂交,然后与雌性可育亲本GUY11回交,产生了可育的周皮,足以进行四分体分离。遗传分析表明,该病菌对水稻品种Pi-n°4的毒力由一个与MAT1-1基因无连锁的基因(Avr1-Pi-n°4)控制。此外,发现Pi-n°4的抗性由一个基因控制。因此,存在一种基因对基因的关系,为病理系统的水稻- m。盘菌。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evidence of a Gene-for-Gene Relationship in the Oryza sativa-Magnaporthe grisea Pathosystem.

A cross was made between two field isolates of Magnaporthe grisea pathogenic to rice. Full-sib crosses between F1 ascospores, followed by backcrosses to the female fertile parent GUY11, produced perithecia fertile enough for tetrad isolation. Genetic analysis of the pathogen revealed that avirulence to the rice cultivar Pi-n°4 is controlled by one gene (Avr1-Pi-n°4) unlinked to the gene MAT1-1, which is responsible for mating type. Additionally, resistance of Pi-n°4 was found to be controlled by one gene. Thus, existence of a gene-for-gene relationship was shown for the pathosystem Oryza sativa-M. grisea.

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来源期刊
Phytopathology
Phytopathology 生物-植物科学
CiteScore
5.90
自引率
9.40%
发文量
505
审稿时长
4-8 weeks
期刊介绍: Phytopathology publishes articles on fundamental research that advances understanding of the nature of plant diseases, the agents that cause them, their spread, the losses they cause, and measures that can be used to control them. Phytopathology considers manuscripts covering all aspects of plant diseases including bacteriology, host-parasite biochemistry and cell biology, biological control, disease control and pest management, description of new pathogen species description of new pathogen species, ecology and population biology, epidemiology, disease etiology, host genetics and resistance, mycology, nematology, plant stress and abiotic disorders, postharvest pathology and mycotoxins, and virology. Papers dealing mainly with taxonomy, such as descriptions of new plant pathogen taxa are acceptable if they include plant disease research results such as pathogenicity, host range, etc. Taxonomic papers that focus on classification, identification, and nomenclature below the subspecies level may also be submitted to Phytopathology.
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