Volume 10, Issue 27 (11-2018)                   jcb 2018, 10(27): 171-179 | Back to browse issues page

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miohammad alegh S, sabouri H, sattarian A, biabani A, gholizadeh A. Identification of QTLs Related to Root and Shoot Traits in Rice under Nitrogen Deficiency Conditions. jcb. 2018; 10 (27) :171-179
URL: http://jcb.sanru.ac.ir/article-1-435-en.html
gonbad kavous university
Abstract:   (93 Views)

In order to detect the QTL associated with nitrogen-deficiency tolerance at seedling stage, a population of 96 lines derived from Ahlami Tarom and Neda cross were studied at 2014. For genetic linkage map construction, 30 SSR and 15 ISSR makers were used. The resulted linkage map covered 1411.3 cM of rice genome with an average of 15.34 cM distance between two markers. A total of 37 QTLs were identified for the traits under study. qRV-10 under conditions of nitrogen deficiency explained 11.4% of the phenotypic variations of root volume. QTLs controlling root number (qRN-3 and qRN-6b) and root weight (qRW-5b and qRW-5c) under normal conditions were detected in the major stress that this is justified QTL accounted for over 20 percent of phenotypic changes. Markers linked to the QTL as markers linked to traits are likely to be used for marker-assisted selection in breeding programs.
 

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