초록
대두 종자크기에 대한 QTL의 consistency을 알아보기 위하여 F$_{2}$, F$_{3}$ 세대에서의 분석결과를 요약하면 댜음과 같다. 세 개의 마크 OTL09a, OPM07a, OPAC12 가 F$_{2} 세대에서 종자 크기에 대한 QTL과 높은 유의성을 나타내었고, F$_{3}$ 세애데는 네 개의 마크 OTL09a, OPG19a, OPL09b, OPP11가 유의성을 나타내었다. 두 개의 마크 OPL09a, OPL09b 가 두 세대에서 유의성을 나타애어 종자 크기에 대한 QTL의 consistency가 인정되었다.
Soybean [Glycine max (L.) Merr.] seed size is a important yield component and is a primary consideration in the development of cultivars for specialty markets. Our objective was to examine the consistency of QTLs for seed size across generations. A 68-plant F$_{2} segregation population derived from a mating between Marcury (small seed) and PI 467.468 (large seed) was evaluated with RAPD markers. In the F$_{2} plant generation (i.e. F$_{3} seed), three markers, OPL09a, OPM)7a, and OPAC12 were significantly (P<0.01) associated with seed size QTLs. In the F$_{2} ; F$_{3} generation (i.e., F$_{4} seed), four markers, OPA092, OPG19, OPL09b, and OPP11 were significantly (P<0.01) associated with seed size QTLs. Just two markers, OPL09a, and OPL09b were significantly (P<0.05) associated with seed size QTLs in both generations. The consistency of QTLs across generations indicates that marker-assisted selection for seed size is possible in a soybean breeding program.
