[1]沈凤,蒋逍逍,房伟民,等.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.[doi:10.7685/jnau.201703036]
 SHEN Feng,JIANG Xiaoxiao,FANG Weimin,et al.Genetic diversity analysis of cut chrysanthemum leaves[J].Journal of Nanjing Agricultural University,2018,41(2):275-285.[doi:10.7685/jnau.201703036]
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切花菊叶片的遗传多样性分析()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
41卷
期数:
2018年2期
页码:
275-285
栏目:
出版日期:
2018-03-27

文章信息/Info

Title:
Genetic diversity analysis of cut chrysanthemum leaves
作者:
沈凤 蒋逍逍 房伟民 管志勇 邓波 陈发棣
南京农业大学园艺学院/农业部景观设计重点实验室, 江苏 南京 210095
Author(s):
SHEN Feng JIANG Xiaoxiao FANG Weimin GUAN Zhiyong DENG Bo CHEN Fadi
College of Horticulture/Key Laboratory of Landscaping, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
关键词:
切花菊叶片形态学遗传多样性
Keywords:
cut chrysanthemumleafmorphologygenetic diversity
分类号:
S682.1.1
DOI:
10.7685/jnau.201703036
摘要:
[目的]在形态学水平上研究切花菊叶片的遗传多样性。[方法]对189个切花菊品种的12个叶部性状进行观测和统计,包括性状的分布分析、性状在品种内的稳定性和品种间的差异性分析以及主成分分析。[结果]叶长、叶宽、叶长/叶宽、顶生裂片相对于叶的长度、最低位一级裂刻深度和叶上表面绿色程度的数量性状符合正态分布。质量性状在品种群内的分布都不均匀。叶长、叶宽、叶柄相对于叶的长度、叶柄与茎的夹角、叶上表面绿色程度和叶基部形状,这6个性状同时符合品种内稳定性好和品种间差异明显的要求。对叶部形态影响最大的性状主要是顶生裂片相对于叶的长度、最低位一级裂刻深度、叶边缘锯齿数量和叶基部形状。叶部性状综合得分较高的品种有‘南农凯歌’‘南农朱雀’‘南农单金翠’‘南农紫庐’‘南农金焰’‘南农粉葵’‘欧元黄’和‘南农凯悦’等。[结论]切花菊叶片具有丰富的遗传多样性,顶生裂片相对于叶的长度、最低位一级裂刻深度、叶边缘锯齿数量和叶基部形状是引起切花菊叶部形态差异的主要原因。
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 varieties,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’‘Ouyuanhuang’‘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.

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备注/Memo

备注/Memo:
收稿日期:2017-03-25。
基金项目:农业部948项目(2016-X18);江苏省农业科技自主创新资金项目[CX(14)2023];江苏省农业三新工程项目[SXGC(2016)318];国家科技支撑计划项目(2013BAD01B070403);中央高校基本科研业务费专项资金(KYCYL201501)
作者简介:沈凤,本科生。
通信作者:陈发棣,教授,主要从事花卉遗传育种研究,E-mail:chenfd@njau.edu.cn。
更新日期/Last Update: 1900-01-01