NDLI: Pollen morphology of Indigofera (Fabaceae) in China and its taxonomic implications

Content Provider	Springer Nature Link
Author	Zhao, Xue Li Gao, Xin Fen Xu, Bo
Copyright Year	2016
Abstract	Asia, especially the temperate Sino-Himalayan region is one of the four major diversity centers of Indigofera. Pollen morphology of Indigofera species in the Sino-Himalayan region is poorly known. In this study, pollen morphology of 52 samples representing 43 Chinese Indigofera species and two varieties was examined using scanning electron microscopy to evaluate its taxonomic significance. Parasyncolpate pollen grains were described in Indigofera for the first time. Cluster and principal component analyses were conducted based on four quantitative and three qualitative pollen characters. Five groups were recognized within Chinese Indigofera in the cluster analysis, but only one can be separated by the first three principal components. The shape and size of pollen grains in Indigofera are highly variable. Consequently, both the characters lack any significant taxonomic value. The number of apertures, tectum architecture and perforation density shows some taxonomic significance. The pollen morphology exhibits obvious phylogenetic and biogeographical significance on large scales in Indigofera. Although pollen characters alone are insufficient to reconstruct the taxonomic relationships within Indigofera, palynological data can provide some useful information for the species-level revisions.
Starting Page	469
Ending Page	479
Page Count	11
File Format	PDF
ISSN	03782697
Journal	Plant Systematics and Evolution
Volume Number	302
Issue Number	4
e-ISSN	21996881
Language	English
Publisher	Springer Vienna
Publisher Date	2016-02-12
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fabaceae Indigofera Palynology Scanning electron microscopy Taxonomy Plant Sciences Plant Ecology Plant Anatomy/Development Plant Systematics/Taxonomy/Biogeography
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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