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小麦 3BS 染色体臂上的一个多抗性基因位点赋予其对秆锈病（Sr2）、叶锈病（Lr27）和白粉病的抗性。

A multiple resistance locus on chromosome arm 3BS in wheat confers resistance to stem rust (Sr2), leaf rust (Lr27) and powdery mildew.

机构信息

CSIRO Plant Industry, Canberra 2601, Australia.

出版信息

Theor Appl Genet. 2011 Aug;123(4):615-23. doi: 10.1007/s00122-011-1611-y. Epub 2011 May 15.

DOI:10.1007/s00122-011-1611-y
PMID:21573954
Abstract

Sr2 is the only known durable, race non-specific adult plant stem rust resistance gene in wheat. The Sr2 gene was shown to be tightly linked to the leaf rust resistance gene Lr27 and to powdery mildew resistance. An analysis of recombinants and mutants suggests that a single gene on chromosome arm 3BS may be responsible for resistance to these three fungal pathogens. The resistance functions of the Sr2 locus are compared and contrasted with those of the adult plant resistance gene Lr34.

摘要

Sr2 是唯一已知的在小麦中具有持久、非专化的成株期抗秆锈病基因。Sr2 基因与叶锈病抗性基因 Lr27 和抗白粉病紧密连锁。对重组体和突变体的分析表明，3BS 染色体臂上的单个基因可能负责对这三种真菌病原体的抗性。比较了 Sr2 基因座的抗性功能与成株期抗性基因 Lr34 的抗性功能。

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An accurate DNA marker assay for stem rust resistance gene Sr2 in wheat.一种用于小麦抗秆锈病基因 Sr2 的准确 DNA 标记检测方法。
Theor Appl Genet. 2011 Mar;122(4):735-44. doi: 10.1007/s00122-010-1482-7.
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