南京农业大学学报2018，Vol.41Issue(2)：275-285,11.DOI:10.7685/jnau.201703036
切花菊叶片的遗传多样性分析
Genetic diversity analysis of cut chrysanthemum leaves
摘要
Abstract
[Objectives]The genetic diversity of cut chrysanthemum leaves was studied on the morphology. [Methods]The 12 leaf traits of 189 cut chrysanthemums were observed and counted,including trait distribution analysis,stability analysis of traits in varie-ties,difference analysis of traits among varieties,as well as principal component analysis. [Results]The quantitative traits of leaf length,leaf width,leaf length/leaf width,length of apical lobe relative to leaf,depth of the lowest bit crack and green degree of leaf surface(c?value)are in accordance with normal distribution. The distribution of quality traits in varieties is uneven. There are 6 traits satisfying the requirements of having good stability within varieties and clear difference among varieties. They are the length of leaf,the width of leaf,the length of petiole relative to leaf,the angle between petiole and stem,the green degree of leaf surface and the shape of leaf base. The most influential traits on leaf morphology are the length of apical lobe relative to leaf,the depth of the lowest bit crack,the number of leaf serrates at margin and the shape of leaf base. The varieties having high comprehensive score on leaf traits are'Nannongkaige''Nannongzhuque''Nannongdanjincui''Nannongzilu''Nannongjinyan''Nannongfenkui''Ouyuan-huang''Nannongkaiyue',etc. [Conclusions]The leaves of cut chrysanthemum have rich genetic diversity. The main reasons for the difference of leaf morphology of cut chrysanthemum are the length of apical lobe relative to leaf,the depth of the lowest bit crack,the number of leaf serrates at margin and the shape of leaf base.关键词
切花菊/叶片/形态学/遗传多样性Key words
cut chrysanthemum/leaf/morphology/genetic diversity分类
农业科技引用本文复制引用
沈凤,蒋逍逍,房伟民,管志勇,邓波,陈发棣..切花菊叶片的遗传多样性分析[J].南京农业大学学报,2018,41(2):275-285,11.基金项目
农业部948项目(2016-X18) （2016-X18）
江苏省农业科技自主创新资金项目[CX(14)2023] （14）
江苏省农业三新工程项目[SXGC(2016)318] （2016）
国家科技支撑计划项目(2013BAD01B070403) （2013BAD01B070403）
中央高校基本科研业务费专项资金(KYCYL201501) （KYCYL201501）
