水稻两用核不育系的育性转换分析  

The Analysis of Fertility Transformation of Dual-purpose Genic Male-sterile Lines(i.e.DGML)in Rice

作　　者：贺浩华[1] 刘宜柏[1] 饶治祥[1] 潘晓云[1] 

机构地区：[1]江西农业大学农学系,南昌330045

出　　处：《中国农业大学学报》1993年第S3期31-34,共4页Journal of China Agricultural University

基　　金：江西省自然科学基金

摘　　要：本文研究了两用核不育系 W6184S,K-9S,8902S 在不同生态点的育性表现。提出了两用核不育系育性转换具有不育基因表达的启动温度,不育基因完全表达的临界温度,育性恢复起始温度和育性完全恢复的临界温度四个温度阀值的新观点,核不育基因的表达与育性恢复是一个非常复杂的生物学现象。同时,讨论了核不育系的选育问题。The DGML have four critical temperature,i.e.start temperature of sterile gene expression, critical temperature of sterile gene expression fully,Start temperature of fertilily recovery,critical temperature of fertility full recovery.The height of start temperature of sterile gene expression and criticial temperature of sterile gene expression fully are:W6184S>K-9S>8902S.The DGML of lower critical temperature of sterile gene expression fully and higher critical temperature of fertilily full recovery are favourable to seed production and seed reproduction.The expression of male-sterile gene in DGML is a Complicated Biological phe- nomenon.

关 键 词：两用核不育系 育性转换 临界温度 

分 类 号：S[农业科学]