RFLP mapping of major and minor genes for important agronomic characters in rice |
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Authors: | LI Ping LU Chaofu ZHOU Kaida CHEN Ying LI Renduan ZHU Lihuang |
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Institution: | Rice Research Institute of Sichuan Agricultural University; Wenjiang 611130; China |
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Abstract: | A molecular genetic map with 233 RFLP markers which covered about 2070 cM of rice genome was constructed based on a doubled haploid (DH) population derived from anther culture of a cross between an indica variety Gui630 and a japonica variety 02428. Quantitative trait loci (QTLs) for agronomic characters such as number of panides, heading date, plant height, number of spikelets, number of grains, fertility and 1 000-grain weight were analyzed using interval mapping approach. 8 major genes and 29 minor genes were identified associating with these traits. The results also indicated that great phenotypic difference between parents was profitable in detection of major genes. |
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Keywords: | rice restriction fragment length polymorphisms (RFLP) molecular map quantitative trait loci (QTL) |
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