Seed Micromorphological Characteristics of Three Species of Solanaceae in Qinghai Province

doi:10.7677/ynzwyj201313051

Plant Diversity ›› 2013, Vol. 35 ›› Issue (3): 290-294.DOI: 10.7677/ynzwyj201313051

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Seed Micromorphological Characteristics of Three Species of Solanaceae in Qinghai Province

ZHANG Fa-Qi-1, GAO Qing-Bo-1, GENG Rui-1、2, ZHANG Jin-Hua-1、2, WANG Jiu-Li-1、2, CHEN Shi-Long-1

1 Key laboratory of Adaption and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences,
Xining 810001, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China

Received:2013-03-21 Online:2013-05-25 Published:2013-04-07
Supported by:
科技部科技基础性工作专项重点项目 (2007FY110100)

Abstract

Abstract:

Seed micromorphology of 18 natural populations of three important medicinal plants: Przewalskia tangutica, Datura stramonium and Anisodus tanguticus, representing three genera of Solanaceae on the QinghaiTibetan Plateau was observed by Scanning Electron Microscopy (SEM) in order to evaluate this character for use in systematic analysis. Ornamentation of seed surface show significant differences among the three species, and can be divided into four types. P.tangutica is very different from A.tanguticus on plant, flower and leaf morphology. However, the two species show high similarity on seed size, color, shape and surface ornamentation compared with D.stramonium. A plausible explanation for the result is that Przewalskia L. and Anisodus L. have closer phylogenetic relationships than Datura L. In addition, there is nearly no significant difference on seed micromorphological characteristics of the same species from different localities. Our results indicate that seed micromorphological characteristics could be an evidence for classification among the 3 genus in Solanaceae on the QinghaiTibetan Plateau and shows important systematic significance, but taxonomic decisions must be made with a full suite of morphological, cytological, palynological, molecular and other data.

Key words: Ornamentation, Solanaceae, Przewalskia tangutica, Datura stramonium, Anisodus tanguticus, Qinghai province

CLC Number:

Q 944

ZHANG Fa-Qi-, GAO Qing-Bo-, GENG Rui-, ZHANG Jin-Hua-, WANG Jiu-Li-, CHEN Shi-Long. Seed Micromorphological Characteristics of Three Species of Solanaceae in Qinghai Province[J]. Plant Diversity, 2013, 35(3): 290-294.

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Seed Micromorphological Characteristics of Three Species of Solanaceae in Qinghai Province

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