摘要
以不同遗传背景和熟期的 9个粳型恢复系相互间和与农垦 58S配制杂交组合 ,1 997～1 999年研究了农垦 58S光敏核不育基因的遗传规律。结果表明 ,供试恢复系均携带恢复农垦58S光敏核不育性的 1对或 2对主效显性基因。T984和农垦 58的 1对主效恢复基因等位。其它 7个恢复系携带 2对等位的主效恢复基因 ,暗示农垦 58S的光敏核不育性涉及到 2对隐性基因 ,遗传背景仅影响微效基因的表达和分离。
Nine japonica restoring lines with different background and growth duration were used to hybridize with Nongken 58S,during 1997～1999, the authors explored the number and allelism of major genes to restore the fertility of photoperiod sensitive genic male sterile line Nongken 58S.The results showed that,all of restoring lines tested possessed one or two pairs of dominant genes.Furthermore, T984 had one pair of restoring genes as Nongken 58S did,however,all of the other seven lines conferred two pairs of dominant fertile restoring genes,it suggested that, Nongken 58S possessed two pairs of recessive male sterile genes,the genetical background modify the disjunction and expression of minor genes on well.
出处
《武汉植物学研究》
CSCD
2000年第6期449-453,共5页
Journal of Wuhan Botanical Research
基金
863高技术项目资助! (编号 :BH0 0 1 -0 5)
关键词
水稻
光敏核不育系
恢复系
等位性
结实率
Photoperiod sensitive genic male sterile line,Restoring line,Allelism,Seed setting rate
