논문 상세보기
pp.412-419
수박에서 종자크기의 유전분석을 위해 종자크기가 다른 6계통을 양친으로 한 교배집단을 조사하였다. 전체 6계통 중 3계통은 수집 계통으로 giant seed(GS)인 'PI525088' big size(BS)인 'Charleston Gray' 그리고 medium seed(NS)인 'NT'를 사용하였으며, 다른 3계통은 보통 크기와 가장 작은 크기 계통간('NT'× 수식 이미지'TDR') 교잡 및 여교잡으로부터 육성되어 종자크기만 상이한 nea
In order to study the inheritance of watermelon seed size, we used six watermelon lines of different seed sizes as parental lines. Six lines include three accessions, 'PI525088' with giant seed (GS), 'Charleston Gray' with big seed (BS), and 'NT' with normal medium size seed (NS), and three near isogenic lines, 'NTss' with small seed (SS), 'NTms' with micro seed (MS) and 'NTts' with tomato seed size (TS) bred by crosses between accession 'NT' of normal seed size and accession 'TDR' of the smallest seed size,. We inspected F1, F2, BC1F1 (P1), BC1F1 (P2) populations from the crosses between the adjacent seed size materials like GS×BS, BS×NS, NS×SS, and MS×TS, and two crosses between parental lines showing relatively big difference in seed size such as GS×TS and NS×TS. Partial single dominant inheritance patterns were observed between GS×BS, NS×SS, and MS×TS and inheritance patterns based on two genes or more than two genes were speculated between BS x NS. A very wide segregation range was observed from the population of GS×TS indicating many quantitative genes involved in the seed sizes. Overall, we speculated that more than six genes are involved in between the biggest and smallest seed size watermelon and three major genes between the normal seed size and the smallest seed size watermelon.
