방사선 조사에 의한 유채 M6~M7세대 변이계통의 특성

Characteristics of Mutant Lines through M6 to M7 Generation Induced by Radiation in Rapeseed (Brassica napus L.)

  • 김준수 (전북대학교 농업생명과학대학 원예학과) ;
  • 은종선 (전북대학교 농업생명과학대학 원예학과)
  • Kim, Jun-Su (Department of Horticulture, Chonbuk National University) ;
  • Eun, Jong-Seon (Department of Horticulture, Chonbuk National University)
  • 투고 : 2013.10.25
  • 심사 : 2013.11.19
  • 발행 : 2013.11.30

초록

To develop new varieties of rapeseed (Brassica napus L.), the seeds of three varieties, 'Naehan', 'Tammi', and 'Halla' were irradiated with proton ion beams and gamma rays with 0 to 2,000 Gy. We had selected 9 lines in $M_5$ generation, and their useful characteristics were investigated by progressing from $M_6$ to $M_7$ generation for checking uniformity and stability. The 9 lines selected in $M_5$ generation were maintained their characteristics in terms of flowering date, maturing date, and plant height through $M_6$ to $M_7$ generations. Especially, 2 lines of NP600-1-1-198-2-1 and NP1000-13-2-362-4-1 selected in $M_5$ generation derived from 'Naehan' had characteristics of early maturity and shorter stem than original variety, and they also were maintained characteristic of early maturity such as 10~11 days earlier flowering date and 6~9 days earlier maturing date through $M_6$ to $M_7$ generations. For stem length, they showed characteristics of shorter stem in 2 lines of NP600-1-1-198-2-1 line and NP1000-13-2-362-4-1 line about 16%, 25% shorter stem than original variety respectively through $M_6$ to $M_7$ generations. Furthermore, some characteristics of 2 lines compared to the original variety were similar or higher in weight of 1,000 seeds, number of branches per plant, number of siliqua per panicle, number of seeds per silique, oil contents, and oleic acid contents. The line with large and plump flowers selected in $M_5$ generation also showed large and dark yellow flowers through $M_6$ to $M_7$ generations. The lines with High oleic acid and low saturated fatty acid contents selected in $M_5$ generation were maintained characteristics through $M_6$ to $M_7$ generation and these useful characteristics were expected for developing a new variety for bio diesel uses.

키워드

과제정보

연구 과제 주관 기관 : 농림수산식품부