FUNCTIONAL HOMOLOGS OF THE ARABIDOPSIS RPM1 DISEASE RESISTANCE GENE IN BEAN AND PEA
FUNCTIONAL HOMOLOGS OF THE ARABIDOPSIS RPM1 DISEASE RESISTANCE GENE IN BEAN AND PEA
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DOI：
10.1105/tpc.4.11.1359
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发表时间：
1992-11-01
期刊：
影响因子：
11.6
通讯作者：
VIVIAN, A
中科院分区：
文献类型：
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作者：
DANGL, JL;RITTER, C;VIVIAN, A
我们发现，来自豌豆病原菌Pseudomonas syringae PV Pisi的细菌无毒(AVR)基因功能avrPpiA1被拟南芥的一些但不是所有的基因所识别。因此，在功能上定义在作物物种上的AVR基因也是在拟南芥上定义的AVR基因。AvrPpiA1在一系列拟南芥基因型上的活性与先前用拟南芥定义的P.S.PV maculicola的avrRpm1基因的活性相同。这两个AVR基因是同源的，编码的预测产物几乎相同。此外，这种保守的AVR功能也被一些豆类和豌豆品种以基因对基因的方式识别。我们进一步证明，拟南芥的抗病基因RPM1对avrRpm1的条件抗性也影响着对携带avrPpiA1的细菌菌株的抗性。因此，豆类、豌豆和可以想象的其他作物物种都含有RPM1的功能性和潜在的分子同源物。
We showed that a bacterial avirulence (avr) gene function, avrPpiA1, from the pea pathogen Pseudomonas syringae pv pisi, is recognized by some, but not all, genotypes of Arabidopsis. Thus, an avr gene functionally defined on a crop species is also an avr gene on Arabidopsis. The activity of avrPpiA1 on a series of Arabidopsis genotypes is identical to that of the avrRpm1 gene from P. s. pv maculicola previously defined using Arabidopsis. The two avr genes are homologous and encode nearly identical predicted products. Moreover, this conserved avr function is also recognized by some bean and pea cultivars in what has been shown to be a gene-for-gene manner. We further demonstrated that the Arabidopsis disease resistance locus, RPM1, conditioning resistance to avrRpm1, also conditions resistance to bacterial strains carrying avrPpiA1. Therefore, bean, pea, and conceivably other crop species contain functional and potentially molecular homologs of RPM1.