|本期目录/Table of Contents|

[1]黎成 徐波** 高信芬**.国产山蚂蝗属植物花粉形态及其分类意义*[J].应用与环境生物学报,2018,24(06):1-12.[doi:10.19675/j.cnki.1006-687x.2018.03005]
 LI Huaicheng,XU Bo** & GAO Xinfen**.Pollen morphology and its taxonomic significance of Desmodium Desv. in China *[J].Chinese Journal of Applied & Environmental Biology,2018,24(06):1-12.[doi:10.19675/j.cnki.1006-687x.2018.03005]
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国产山蚂蝗属植物花粉形态及其分类意义*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年06期
页码:
1-12
栏目:
研究论文
出版日期:
2018-12-25

文章信息/Info

Title:
Pollen morphology and its taxonomic significance of Desmodium Desv. in China *
文章编号:
201803005
作者:
黎成 徐波** 高信芬**
中国科学院成都生物研究所 成都 610041
Author(s):
LI Huaicheng XU Bo** & GAO Xinfen**
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
关键词:
山蚂蝗属分类花粉形态扫描电镜
Keywords:
Desmodium Desv. taxonomy pollen morphology scanning electron microscopy (SEM)
DOI:
10.19675/j.cnki.1006-687x.2018.03005
摘要:
目前,对国产山蚂蝗属植物花粉形态的报道尚不系统,仅限于部分地区的少数种类。试图为国产山蚂蝗属类群的分类学修订及系统关系探讨提供佐证,本研究选取了3亚属7组17种国产山蚂蝗属植物花粉,利用电镜扫描进行系统观察和比较分析,结果表明:本属花粉粒为单分体,单粒花粉球形,近长球形或长球形,具三孔沟。花粉粒外壁具网状,皱波状纹饰。根据花粉外壁纹饰对供试样品进行分类得到7个分类群,与宏观的形态差异有一定的对应性。测量和计算得到4个定量花粉形态数据:极轴长(P),花粉沟长/极轴长(C/P),花粉沟长/沟中部宽,极轴长/赤道轴长(P/E),将编码后的纹饰分类结果与定量结果联合进行聚类分析,得到4个分类群,部分分类结果与宏观形态学分类吻合。山蚂蝗属植物孢粉学性状对其属下分类具有一定的参考和指导意义。(图2 表2 参17 )
Abstract:
Objectives: At present, reports on the pollen morphology of the genus Desmodium Desv. in China are not systematic and are only limited to a few species in some areas. For finding the evidences to support the taxonomic revisions and systematic relationships of the genus Desmodium Desv. in China, we examined the pollen grains of Desmodium Desv. species in China.Methods: Pollen grains of 17 species belonging to 7 sections, 3 subgenus of the genus Desmodium Desv. in China were examined by the scanning electron microscopy (SEM).Results: The results showed that the pollen grains of the genus Desmodium Desv. are tricolpate monads which are spheroidal, subprolate or prolate with reticulate or rugulate exine sculptures. According to the exine sculptures, samples were classified into 7 groups. Moreover, four quantitative pollen morphology data, which are polar axis length (P), colpus length/polar axis length (C/P), colpus length/central colpus width, polar axis length/equatorial axis length (P/E), and coding exine sculptures were used for the cluster analysis. In addition, 4 groups were obtained by cluster analysis, some of which were consistent with morphological classification. Coincidentally, some of the taxonomic groups are also consistent with the morphological classification ones. Conclusions: Therefore, palynological traits of the genus Desmodium Desv. can provide useful information on classification.

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备注/Memo

备注/Memo:
收稿日期: 2018-03-05 接受日期: 2018-03-30
*国家自然科学基金项目(31570196)资助?
**通讯作者(E-mail: xubo@cib.ac.cn; xfgao@cib.ac.cn)
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更新日期/Last Update: 2018-05-02