河南农业大学学报2018，Vol.52Issue(1)：11-15,29,6.
矮化独秆小麦突变体的生物学特征和遗传分析
Biological traits and genetic analysis of a wheat dwarf-monoculm mutant
摘要
Abstract
A wheat dwarf-monoculm mutant named dmc was induced from ethylmethame sulfonate (EMS) treated wheat cultivar Guomai 301. Typically,the mutant dmc only had amain stem. The aver-age plant height of dmc was 48.00 cm,and the average spike length was 6.48 cm. The leaf color of dmc was yellow green at seedling stage,but became normal green after the jointing stage. The number of spikelets on the main spike,the number of grains per spike,and 1000-grain weight of dmc were sig-nificantly smaller than those of Guomai 301. The heading, florescence and maturation times of dmc were significantly later than those of Guomai 301 by about a week.A total of 431 wheat SSR markers were used to evaluate the genetic diversity between dmc and Guomai 301. No polymorphic SSR locus between dmc and Guomai 301 had been found,which demonstrated that their genetic backgrounds were highly consistent,and the dmc was derived from Guomai 301 indeed.Histological observation indicated that the cell size of dmc was smaller than that of Guomai 301.The average tiller numbers of dmc and Chinesespring was 1.10 and 34.00, respectively. The average tiller number of the F1generation de-rived from cross dmc/Chinesespring was 4.48. These data suggested that the monoculm trait was con-trolled by dominant or semidominant gene/genes.关键词
小麦/突变体/矮化独秆/生物学特征Key words
wheat (Triticum aestivum L.)/mutant/dwarf-monoculm/biological traits分类
农业科技引用本文复制引用
何瑞士,倪永静,孙玉龙,姜玉梅,李巧云,牛吉山..矮化独秆小麦突变体的生物学特征和遗传分析[J].河南农业大学学报,2018,52(1):11-15,29,6.基金项目
国家自然科学基金面上项目(30601235) （30601235）
