摘要
以苎麻雄性不育保持系GS13-X1为实验材料,选用MS培养基附加激素TDZ和2,4-D,研究不同激素浓度组合对种子苗叶片和茎段外植体愈伤诱导与不定芽分化的影响.试验结果表明,GS13-X1再生的最适培养基为MS+0.3 mg/L TDZ+0.05 mg/L 2,4-D+30 g/L蔗糖+7.5 g/L琼脂,叶片和茎段的愈伤诱导率分别为100%和95.24%,出芽分化率分别为11.11%和23.81%.50 mg/L卡那霉素可以明显抑制茎段和叶愈伤诱导与分化.苎麻雄性不育保持系组织培养再生技术是苎麻雄性不育转基因验证的前提条件,也是苎麻遗传工程改良的基础.
Plant regeneration of maintainer line 'GS13-X1' of male sterility in ramie(Boehmeria nivea(L.) Gaud.) was studied.The optimal regeneration medium,MS medium with 0.3 mg/L TDZ,0.05 mg/L 2,4-D,30 g/L sugar and 7.5 g/L agar induced 100% and 95.24% calluses from seedling leaves and stems respectively,and 11.11% and 23.81% shoots from the calluses.50 mg/L kanamycin remarkably inhibited the callus induction and shoot regeneration.The technique for plant regeneration of ramie maintainer line is the foundation for validation of the candidate genes of ramie male sterility.
出处
《云南大学学报(自然科学版)》
CAS
CSCD
北大核心
2013年第2期233-239,共7页
Journal of Yunnan University(Natural Sciences Edition)
基金
国家自然科学基金项目(30971825
30360058)
关键词
苎麻
外植体
愈伤
再生
卡那霉素
ramie(Boehmeria nivea(L.) Gaud.)
explants
callus
regeneration
kanamycin
作者简介
杨飞(1983-),男,陕西人,博士生,主要从事植物遗传育种与基因工程研究.
通信作者:刘飞虎(1958-),男,湖南人,博士,教授,主要从事麻类遗传育种和栽培研究.E-mail:hnplantbreed@gmail.com.