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NIU Ao-Lei, LU Xun-Li, SONG Chi. Mapping of QTLs Controlling Grain Plumpness of Rice Using Doubled Haploid Lines[J]. Plant Science Journal, 2004, 22(6): 477-481.
Citation: NIU Ao-Lei, LU Xun-Li, SONG Chi. Mapping of QTLs Controlling Grain Plumpness of Rice Using Doubled Haploid Lines[J]. Plant Science Journal, 2004, 22(6): 477-481.
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Mapping of QTLs Controlling Grain Plumpness of Rice Using Doubled Haploid Lines

  • Experimental Center of Biology, College of Life Sciences, Wuhan University, Wuhan 430072, China

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  • Received Date: March 10, 2004
  • Revised Date: July 01, 2004
  • Published Date: December 25, 2004
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    • Abstract
  • Composite interval mapping was conducted to map both main-effect and digenic epista-(tic) loci for grain plumpness using a doubled haploid population derived from a indica/japonica cross.One main-effect QTL (qGP-7) for the trait was located onto a 26 cM chromosomal region marked by RZ978RG404aRG404c on chromosome 7.This QTL explained 10%-15% of the phenotypic variation.Two pairs of interactions were identified,each accounting for about 20% of the phenotypic variation,suggesting the importance of epistasis as genetic factor of the trait.
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