摘要
利用３个带有第５染色体上标记基因的标记基因系，采用ＢＣ＿１Ｆ＿２株系分析，对农垦５８ｓ的１对光敏感雄性不育基因在第５染色体上的位置进行了定位。结果表明，农垦５８ｓ的１对光敏感雄性不育基因与第５染色体上的ｇｈ－１基因以２０．３ｃＭ的遗传图距连锁遗传，与ｎｌ－１，ｖ－１０基因的遗传图距较远，在分离群体中不能发现其连锁遗传关系。将农垦５８ｓ的１对光敏感雄性不育基因定位于水稻第５染色体上端。
By using 3 marker gene lines with different marker genes respectively located on chromosome 5,locus of one gene for photoperiodsensitive genic male sterility(PGMS)in Nongken 58s was studied through BC1F2 line analysis. Results showed that,the PGMS gene in Nongken 58s was linked to marker gene gh-1 with a genetic distance of 20.3 cM,but to marker gene nl-1 or v-10,their genetic distance were both long, no linkage relationship of these genes was found in segregation population. The locus of the PGMS gene was on the upper tip of chromosome5.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1996年第1期1-5,共5页
Journal of Huazhong Agricultural University
基金
国家"863"高科技计划资助
关键词
水稻
光敏雄性不育
基因定位
染色体
rice,photoperiod-sensitive genic male sterility,location of gene
