Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Genetic Analysis of Days to Flowering in Korean Hot Pepper

한국 건고추 개화소요일수의 유전 분석

  • Soh, Jae-Woo (Horticultural and Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science) ;
  • Lee, Yong-Beom (Department of Environmental Horticulture, University of Seoul) ;
  • Nam, Sang-Yong (Department of Horticulture, Sahmyook of University)
  • 소재우 (국립원예특작과학원 원예특작환경과) ;
  • 이용범 (서울시립대학교 환경원예학과) ;
  • 남상용 (삼육대학교 원예학과)
  • Received : 2012.04.23
  • Accepted : 2012.11.15
  • Published : 2013.02.28
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Abstract

This study was carried out to calculate the genic values of days for flowering in commercial breeding lines of Korean hot pepper (Capsicum annuum L.). Two breeding lines of pepper '#2132' ($P_1$) early-flowering, and '#1308' ($P_2$) medium-late flowering, and their $F_1$ and $F_2$ generations were used in this study. By using partitioning method (Thseng and Hosokawa, 1971, 1972), it was possible to estimate, from the $F_2$ generations, the number of effective factor pairs differentiating the two parents. It was found out that the two parents were differentiated by two effective factor pairs, A:a and B:b. In the breeding lines used, the inheritance of days to flowering showed that the $F_1$ flowered a little earlier than the earlier flowering parent through the effect of over-dominance. However, $F_2$ flowered earlier or later than both parents through transgressive segregation. Conclusively, the magnitude of genic effects of A-a gene in flowering days was -13.81 days, and B-b gene was -6.73 days. The interaction between the two non-allelic factors using partitioning method was -5.26 days.

본 시험은 한국 고추 육종에 사용되고 있는 교배친에 있어서의 개화소요일수에 관여하는 유전자의 유전가를 구명하기 위해 수행하였다. 조생계 '#2132'($P_1$)과 중만생계 '#1308'($P_2$)의 두 교배친과 이들의 $F_1$, $F_2$ 세대를 본 시험의 공시재료로 사용하였다. Thseng and Hosokawa(1971, 1972)의 partitioning method에 따라 $F_2$ 세대로부터 양친의 유효인자수를 추정하는 것이 가능하였는데, A:a와 B:b 두 인자에 의해 구분되었다. 공시한 교배친의 개화일 유전 특성은 $F_1$ 세대는 빠른 교배친보다 더 빠르고, $F_2$ 세대는 양친의 개화기보다 더 빠르거나 늦은 개체들이 출현하여 $F_1$ 세대는 초우성, $F_2$ 세대에서는 초월 분리가 나타났다. 유효 유전자에 의해 개화기가 단축되는 것은 A-a 유전자에 의해 13.81일, B-b 유전자에 의해 6.73일이 짧아졌다. 두 유전 인자간 간섭효과는 5.26일이 짧은 것으로 나타났다.

Keywords

References

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