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首页> 外文期刊>Journal of genetics >Cataloguing of blast resistance genes in landraces and breeding lines of rice from India
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Cataloguing of blast resistance genes in landraces and breeding lines of rice from India

机译：印度稻米地球产地和育种线的抗抗抗抗原

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摘要

The rice blast caused by the fungus Magnaporthe oryzae is one of the most devastating diseases of rice and can lead to complete failure of the crop under severe cases. The first step in breeding for blast resistance in rice is therefore to identify the novel sources of resistance and cataloguing different blast resistant genes in these genotypes. In the present study, a set of 37 rice genotypes comprising of landraces, advanced breeding lines and released varieties were first characterized for blast resistance under epiphytotic conditions and subsequently different blast resistant genes were catalogued with the help of markers tightly linked to these genes. A total of 22 different blast resistant genes were catalogued in these genotypes. Lot of diversity was found to be present for different genes in the rice genotypes studied. In addition, a set of 2-3 markers were identified which could distinguish genotypes of a particular geographic area from each other. The results are useful for identifying the right combination of genotypes in the resistance breeding programme.
机译：由真菌Magnaporthe oryzae引起的稻瘟病是大米最疣的疾病之一，可以在严重病例下完全失败。因此，在水稻中进行抗抗抗磨性的第一步是鉴定这些基因型中的不同爆炸基因的新抗性和目录。在本研究中，首先首先将包含体重状况，晚期育种线和释放品种的37种水稻基因型在骨骺条件下进行耐药性，随后在与这些基因紧密连接的标记物的帮助下对不同的爆炸基因目录。在这些基因型中共寄生22种不同的爆炸基因。发现许多多样性出现在研究的水稻基因型中的不同基因。另外，鉴定了一组2-3个标记，其可以区分特定地理区域的基因型彼此。结果对于鉴定抗性育种计划中的基因型的正确组合是有用的。

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