Cataloguing of blast resistance genes in landraces and breeding lines of rice from India

被引：6
|
作者：
Gavhane, Dnyaneshwar B. [1 ]
Kulwal, Pawan L. [1 ]
Kumbhar, Shailesh D. [2 ]
Jadhav, Ashok S. [1 ]
Sarawate, Chandrakant D. [2 ]
机构：
[1] Mahatma Phule Krishi Vidyapeeth, State Level Biotechnol Ctr, Rahuri 413722, India
[2] Agr Res Stn, Radhanagari 416212, India
来源：
JOURNAL OF GENETICS | 2019年 / 98卷 / 05期
关键词：
leaf blast; crop improvement; molecular markers; gene cataloguing; diversity; ORYZA-SATIVA L; MICROSATELLITE MARKERS; BROAD-SPECTRUM; SSR MARKERS; DNA MARKERS; PI-Z; IDENTIFICATION; DIVERSITY; SELECTION; INHERITANCE;
D O I：
10.1007/s12041-019-1148-4
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
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.
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页数：11
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