中国水稻科学Issue(2)：119-124,6.DOI:10.3969/j.issn.1001-7216.2014.02.002
粳稻苗期长根突变体 lr1的形态鉴定和基因定位
Morphological Identification and Gene Mapping of a Seedling Long Root Mutant (lr1)in japonica Rice
摘要
Abstract
A seedling long root mutant named lr1 (long root 1 ) was isolated from rice cultivar Nipponbare by mutagenesis with ethyl methanesulfonate (EMS)and the long root trait can be stably inherited.The main root in lr1 mutant was 1 .52,1 .93,3.93,6.81 and 6.77 cm longer than those of wild type at 2,4,6,10 and 1 5-day after germination,respectively,and the root-shoot ratio of lr1 mutant was also significantly greater than that in the seedling of Nipponbare.Genetic analysis indicated that the seedling long root mutant phenotype was controlled by a single recessive gene.The LR1 gene was located between the SSR markers RM304 and RM7300 on chromosome 10,and the genetic distance is 2.0 cM and 3.5 cM,respectively.关键词
水稻/长根/形态鉴定/基因定位Key words
rice/long root/morphological identification/gene mapping分类
生物科学引用本文复制引用
廖莉,章骁劼,吴建国,石春海..粳稻苗期长根突变体 lr1的形态鉴定和基因定位[J].中国水稻科学,2014,(2):119-124,6.基金项目
浙江省重大科技攻关专项(2012C12901-2) （2012C12901-2）
浙江省自然科学基金重点项目(Z3100089) （Z3100089）
浙江省科技厅创新团队项目(2010R50024) （2010R50024）
教育部创新团队项目(IRT1185) （IRT1185）
