Volume 10, Issue 26 (9-2018)                   jcb 2018, 10(26): 195-206 | Back to browse issues page

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karim koshte R, sabouri H. Relationship between ISSR and SSR Markers Indicators of Drought Tolerance in Rice Genotypes. jcb. 2018; 10 (26) :195-206
URL: http://jcb.sanru.ac.ir/article-1-360-en.html
Abstract:   (457 Views)
Breeding of rice for drought tolerance requires proper evaluation and analysis of genetic diversity in breeding populations related to drought tolerance. In order to identify indices for tolerant and sensitive rice genotypes to drought stress, an experiment with 59 genotypes of rice was conducted based of a complete block design with three replications in non-stressed (flooding) and stressed conditions in 2013. Analysis of correlations between the performance of flooding and drought stress tolerance index showed that the indices SSI, STI, MP, GMP, HM and YI as are superior indices for both flooding and drought conditions. Stepwise regression analysis between microsatellite and microsatellite molecular data with indices, a total of 57 and 44, informative markers were identified respectively. The most variations based on microsatellite data on stress tolerance index (STI) was explained with 0.541 by gene loci of RM5424-E, RM462-B, RM549-E, RM8206-C, RM7118-B, RM5424-D, RM3294-B, RM6324-B, RM5780-G and the most variations between microsatellite data based on the performance index (YI) was explained with 0.469 by gene loci of ISSR3-1, ISSR1-6, ISSR2- 8, ISSR9-1, ISSR10-8, ISSR10-10. Results of present study provided a few preliminary data for indirect selection of useful traits using molecular markers.

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Type of Study: Research | Subject: Special
Received: 2015/02/10 | Revised: 2018/09/26 | Accepted: 2017/06/12 | Published: 2018/09/26

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