上海农业学报2013，Vol.29Issue(4)：47-51,5.
地被菊及部分菊属近缘种花粉形态分析
Morphological analysis on pollens of several ground-cover chrysanthemum cultivars and their allied species
摘要
Abstract
Twenty-nine ground-cover chrysanthemum cultivars,2 allied species and 7 hybrids were observed and compared in terms of pollen morphology by using a scanning electron microscope,and the principal component analysis and cluster analysis of the observed results were also made.The results showed that their pollens were nearly spherical or prolate in shape,trifid round in polar view,and 18.726 μm × 16.543 μm-36.089 μm × 24.522 μm in size or basically medium-sized,and had a tricolporate.There were thorn-like protuberances on the outer surface of the pollens,and the ornamentations of thorns were different among species.The principal component analysis showed that the descending order in weights of morphological indicators of pollens was thorn width,thorn length,perforation diameter,P/E ratio,thorn spacing,pollen shape,polar axis length,perforation density,volume and equatorial axis length.The cluster analysis showed that except for ‘Fendai',‘Pudidanfen',‘Jinbuhuan' and ‘Chongbanzaohuang',the genetic relationship was closer among ground-cover chrysanthemum cultivars than between the cultivars and the 2 allied species or hybrids.关键词
地被菊/近缘种/亲缘关系/花粉形态/聚类分析/主成分分析Key words
Ground-cover chrysanthemum/ Allied species/ Genetic relationship/ Pollen morphology / Cluster analysis/ Principal component analysis分类
农业科技引用本文复制引用
郑雅馨,陈雪鹃,孙明..地被菊及部分菊属近缘种花粉形态分析[J].上海农业学报,2013,29(4):47-51,5.基金项目
"十二五"国家科技支撑计划课题(2013BAD01B07) （2013BAD01B07）
中央高校基本科研业务费专项(TD2011-27)资助 （TD2011-27）
