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一种新的抗锈病基因。

A novel gene for rust resistance.

作者信息

Staples Richard C

机构信息

Boyce Thompson Institute, Cornell University, Ithaca, NY 14853, USA.

出版信息

Trends Plant Sci. 2003 Apr;8(4):149-51. doi: 10.1016/S1360-1385(03)00030-X.

Abstract

The Rpg1 gene, which has provided North American cultivars of barley with resistance to the stem rust fungus Puccinia graminis f.sp. tritici for more than 60 years, has been cloned. A single copy of the gene can confer resistance to a susceptible barley variety. Although unexplained, the progeny are consistently more resistant than the variety from which the gene was obtained. The gene might represent a new class of plant resistance genes.

摘要

Rpg1基因已被克隆,在超过60年的时间里,该基因为北美大麦品种提供了对秆锈菌小麦条锈菌的抗性。该基因的单个拷贝就能赋予易感大麦品种抗性。尽管原因不明,但后代的抗性始终高于获得该基因的品种。该基因可能代表了一类新的植物抗性基因。

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