中国烟草科学2011，Vol.32Issue(2)：6-10,5.DOI:10.3969/j.issn.1007-5119.2011.02.002
航天搭载诱变获得多腋芽矮化遗传的烟草突变体-T-srd
A Tobacco Mutant, T-srd with Characters of Abundant Sucker and Dwarfness was Obtained by Aerospace Mutation
摘要
Abstract
A dwarf mutant with abundant sucker was observed in populations of second generation of Nicotiana tabacum (L)cv.GT11 which experienced space mutation in a recoverable satellite, the Chinese third unmanned spacecraft "Shen-Zhou Ⅲ", and these heredities were stable.It was named as T-srd, Tobacco of Sucker-rich and Dwarf mutant.The suckers of T-srd emerged at the first leaf node in 5 weeks after sowing.In field, the emergence of sucker was orderly from bottom to top, and under the control of the apical bud, which had no sucker until the node laid under half of the stalk height at first flower stage.At 90 days after transplanting,the plant height, length of intemodes, and stem girth of T-srd were lower than those of GT11.There was no sucker-rich and dwarf phenotype in Fi population, and the segregation ratio in F2 population of seedling between sucker-rich and sucker-free phenotype in Chi-square test followed the Mendel Genetic Law.Those results suggest that the sucker-rich and dwarf trait is a qualitative character which belongs to recessive mutation controlled by single gene.关键词
烟草/航天诱变/多腋芽/矮化/突变体/遗传规律Key words
tobacco/ aerospace mutation/ sucker-rich/ dwarf/ mutant/ rule ofinheritance分类
农业科技引用本文复制引用
郑少清,胡重怡,叶定勇,蔡刘体..航天搭载诱变获得多腋芽矮化遗传的烟草突变体-T-srd[J].中国烟草科学,2011,32(2):6-10,5.基金项目
国家烟草专卖局资助项目(981057) （981057）
贵州省烟草专卖局资助项目(04-01) （04-01）
