摘要
用300 Gy 60Coγ射线直接辐照杂交水稻保持系龙特甫B干种子,获得了若干叶色突变体,同时选择部分叶色突变体作轮回亲本与不育系龙特甫A 杂交并回交,获得BC1 群体。对M4 叶色突变体和BC1 群体作了初步分析鉴定。遗传研究揭示,叶色标记突变均受一对隐性基因控制。经农艺性状分析, 株高与对照龙特甫A 相仿, 初步筛选4 个较为理想的带叶色标记不育系。
Some leaf color mutants were obtained through radiation of dry seeds of maintainer line of hybrid rice Longtefu B with 60 Co γ rays at a dosage of 300 Gy,from a part of which cross and backcross were made with CMS line Longtefu A and selected as rotational parent,resulting in producing BC 1 population.Analysis and identification were made on M 4 and BC 1 population.Results of genetic analysis showed that mutant marked with leaf color were all controlled by a pair of recessive gene.Analysis of agronomic characters indicated that CMS lines were roughly similar to Longtefu A the check in plant height.Four promising CMS lines with leaf color were selected.
出处
《浙江农业科学》
北大核心
1999年第6期254-256,共3页
Journal of Zhejiang Agricultural Sciences
基金
浙江省 "8812"资助