Volume 7, Issue 16 (1-2016)                   jcb 2016, 7(16): 16-26 | Back to browse issues page

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Identification of QTLs Controlling Cooking and Milling Quality Traits in an F2:4 Population of Rice (Oryza sativa L.). jcb. 2016; 7 (16) :16-26
URL: http://jcb.sanru.ac.ir/article-1-496-en.html
Abstract:   (1388 Views)

     In Present research, 196 F2:4 families from the cross between two Iranian local and improved rice varieties, Sepidrood and Gharib, were used to identify QTLs controlling cooking and milling quality traits. The polymorphism between parents was evaluated by 550 SSR markers and 10 primer combinations of the AFLP markers and linkage map was constructed by 216 polymorphic markers (105 SSRs and 111 AFLPs). The map covered 1861.3 cM of the rice genome with an average distance of 8.95 cM between markers. QTL analysis by composite interval mapping identified 28 QTLs for the studied traits, which some QTLs controlled more than one trait. Furthermore, one major QTL explaining high percentage of the phenotypic variance together with one or several minor QTLs were identified for each studied traits. The major QTLs controlling the studied traits and their linked markers can be considered as selectable markers for marker assisted selection (MAS) programs.

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Type of Study: Research | Subject: General
Received: 2016/01/9 | Accepted: 2016/01/9 | Published: 2016/01/9

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