Genetic Analysis of Carotenoids Content in Red Pepper (Capsicum annuum L.) Fruit using Complete Diallel Cross

• 발행기관: 한국육종학회
• 저자명: Woo-Moon Lee Jung-Ho Kwak Su Kim Won Byoung Chae Dong Kum Park Moo Kyoung Yoon Do Ham Pae Dae-Geun Oh Hyo Geun Park Byoung Cheorl Kang
• 간행물 정보: 『한국육종학회지』Vol.44 No.4, 476~482쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2012.12.30

영문 초록

Regarding carotenoids content, the genetic basis, heritability and combining ability in six red pepper inbred lines were investigated using full diallel crosses. Both additive and non-additive gene actions govern inheritance of carotenoids content. The mean square of array through variance and covariance analysis (Wr-Vr) was insignificant, which suggest that inbred lines involved in diallel cross may have no epistatic effects. The Vr/Wr graph revealed the influence of partial dominant gene action towards low carotenoids content and the absence of non-allelic interaction. The H 2 component was smaller than the H 1 and the [H 2 /4H 1 ] component was 0.187 less than 0.25, indicating unequal proportion of positive and negative alleles in the parents. The estimates of broad and narrow sense heritability for carotenoids content were 0.956 and 0.832, respectively. The variance of general combining ability (GCA) was relatively higher than that of specific combining ability (SCA), which implied that the additive gene effects were predominant as compared to both dominant and epistatic effects for the accumulation of carotenoids in this genetic population. The values of GCA of ‘62024L1’ and ‘62067L2’ were higher than those of the other parents. These 2 inbred lines, therefore, can be considered as useful breeding materials to enhance fruit carotenoids content in other red pepper varieties.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS AND DISCUSSION

키워드

Genetic component Heritability Combining ability GCA SCA ASTA color value