Mapping of quantitative trait loci controlling heading date among rice cultivars in the northernmost region of Japan

スポンサーリンク

概要

• 論文の詳細を見る

• Heading date is the major factor in the regional and seasonal adaptation of rice cultivars. Although many genes controlling heading date have been identified using several mapping populations, it is not clear which previously identified genes contribute to the variation of heading date in particular regions. However, great effort is needed to identify quantitative trait loci (QTLs) among rice cultivars in rice breeding programs in a particular region because they are genetically closely related. In this study, we identified QTLs controlling heading date in 3 F_2 populations among rice cultivars in Hokkaido, the northernmost region of Japan. The segregations of heading date were continuous in all populations. For QTL analysis in populations with genetically close relationships, we used SSR markers located near the known QTLs for the heading date. Three QTLs for the heading date, qDTH3, qDTH-6-1, and qDTH6-2, were detected on chromosomes 3 and 6. The relationships between the three QTLs identified in this study and the known QTLs are discussed.

• 日本育種学会の論文

著者

• Fujino Kenji

  Agricultural Res. Inst. Hokuren Federation Of Agricultural Cooperatives

• Fujino Kenji

  Agricultural Research Institute Hokuren Federation Of Agricultural Cooperatives

• Sekiguchi Hiroshi

  Agricultural Research Institute Hokuren Federation Of Agricultural Cooperatives

関連論文

• Mapping of QTLs controlling seedling establishment using a direct seeding method in rice
• Identification of QTLs Conferring Genetic Variation for Heading Date among Rice Varieties at the Northern-limit of Rice Cultivation
• Mapping of quantitative trait loci controlling heading date among rice cultivars in the northernmost region of Japan
• Identification of QTLs controlling heading date on the short arm of chromosome 3 in rice (Oryza sativa L.)

スポンサーリンク