ADDITIVE EFFECTS OF QTLS RELATED TO GRAINS IN RICE

Mohammad Hossein Fotokian | Nakhoda | Mohammadi Nejad | Pourshamsian

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=31427
Date :  2015/10/10
Publish in :    8th International Conference on Agriculture and Biotechnology

Link :  http://theiier.org/Conference/Manila/1/ICABT/
Keywords :GRAINS, RICE

Abstract :

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Abstract: Advanced backcross QTL analysis was used to identify quantitative trait loci for grain-related traits in a population derived from a cross between IR64 and Tarom Molaei. Parental survey was done by 235 SSR markers, among them 114 markers with clear polymorphic bands were employed for genotyping of 59 advanced backcross lines. Using multiple interval mapping, a total of 11 putative QTLs were detected, of which 5 were for grain length (GL), 3 for grain width (GW), 3 for grain shape (GS). Additive by additive digenic epistasis effects observed for GL and GW. The present study indicated that favorable QTL alleles from the traditional varieties of rice can be transferred into an improved rice variety by advanced backcross QTL strategy and molecular breeding. Key words: Advanced backcross, grain-related traits, QTL mapping, Rice (Oryza sativa L.).

http://theiier.org/Conference/Manila/1/ICABT/