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수도 내염성 유전자의 연관군 구명과 유전진전 Ⅱ. 내염성 선발에 따른 유전진전과 내염성계통 선발
허정기(Jung Gee Heu),채영암(Young Am Chae),방관호(Kwan Ho Bang) 한국육종학회 1993 한국육종학회지 Vol.25 No.4
This experiment was carried out to investigate selection advance based on proline content in the segregating callus population and to compare the response of salt-stress between callus and plant levels. The results indicated that no selection gain was calculated when compared proline content in F₃ seed callus with F₄ seed callus. Proline content in the callus cells was not related to proline content in the seedlings of selected groups. Proline content in the callus cells was independent from de gree of salt-tolerance in the seedlings. One promising breeding line was selected after 40 days sea water cultivation at Namyang reclaimed soil.
Young Am Chae(蔡永岩),Yong Ho Kim(金龍昊),Jung Gee Heu(許貞基) 한국육종학회 1989 한국육종학회지 Vol.21 No.1
Proline, Na, K and Ca ion contents in the callus cells cultured on the medium with and without NaCl were analyzed to determine reliable selection marker for salt-tolerance evaluation and later in quantitative genetic analysis of salt-tolerance. Even though there was no statistically significant varietal difference in proline content of the callus grown on salt-free medium, proline accumulation ability of the callus was significantly different under salt-stress while the cation contents in the callus grown both on the media with and without NaCl was significantly different. The rank of proline content in the 10 different varietal callus cultured on salt-free medium was highly coincided with the rank of proline accumulation under saline stress but three was no such relationship in case of the cation contents. Larger variability in proline accumulation even under NaCl-stress could provide easier identfication of the salt-tolerant callus. The range of variation in the cation contents was much narrowed under saline condition. Thus measure of proline accumulation in callus may be the most reliable selection criterion for salt-tolerance evaluation.