摘要
利用形态标记和分子标记的方法,分析了红麻繁殖群体量和种子老化对种质遗传完整性的影响。结果表明:繁殖群体200株和150株,其遗传完整性优于100株和50株,初步得出红麻种质适宜繁殖群体量为150~200株;种子老化可导致库存种质原样本的有效群体下降,当种子发芽率低于70%或库存样本有效数量低于入库数量一半时,应及时进行繁殖更新,种子发芽率降低对种子基因组的遗传完整性没有影响。
The effect of the number of reproductive population and seed aging on genetic integrity in kenaf（Hibiscus cannabinus L.） gerplasm was studied using morphological characteristics and molecular markers.The results showed that：When the population size was 200 and 150,the genetic integrity was better than that of 100 and 50.Hence,the appropriate reproductive population were 150-200;Seed aging could make effective group of inventory germplasm samples decreasing.Seed reproduction and regeneration should be carried out when the germinate rate was lower than 70% or the sample size was lower than half of the original samples.Seed germination rate has no effect on the genetic integrity of seed genome.
作者
戴志刚
王凤敏
杨泽茂
卢瑞克
粟建光
DAI Zhigang;WANG Fengmin;YANG Zemao;LU Ruike;SU Jianguang(Institute of Bast Fiber Crops,Chinese Academy of Agricuhural Science,Changsha 410205,China;Cereal and Oil Crop Institute,Hebei Academy of Agricuhural and Forestry Sciences,Shijiazhuang 050035,China)
出处
《中国麻业科学》
2018年第4期151-161,共11页
Plant Fiber Sciences in China
基金
农作物种质资源保护与利用项目(NB2012-2130135-35)
国家麻类种质资源平台(NICGR2012-013)
国家麻类产业技术体系建设项目(CARS-19-E01)
关键词
红麻
遗传完整性
繁殖群体
种子老化
kenaf
genetic integrity
propagating population
seed aging
