Home
  Search
  JSE at Wiley-Blackwell

 Journal

Accepted Articles

Early View

Current Issue

Archive

 
  Manuscript Submission

Online Submission

Instructions for Authors

Copyright Transfer Agreement


 About JSE

Aims & Scope

Editorial Board

Online Office

Sponsors & Publisher


 Partner Journals

Other Journals from IB-CAS

TAXON

Plant Diversity and Resources

Journal of Systematics and Evolution

Volume 55 Issue 2, Pages 124C141.

Published Online: 7 Feb. 2017

DOI: 10.1111/jse.12236

References
Full Text HTML
Full Text PDF
Print this page
A molecular phylogeny of Staphyleaceae: Implications for generic delimitation and classical biogeographic disjunctions in the family

AJ Harris1, Ping-Ting Chen2, Xin-Wei Xu3, Jian-Qiang Zhang4, Xue Yang5, and Jun Wen1*

1Department of Botany, National Museum of Natural History, MRC-166, Smithsonian Institution, Washington, DC 20013-7012, USA

2Institute of Agricultural Economy and Information, Hubei Academy of Agricultural Sciences, Wuhan 430064, China

3National Field Station of Freshwater Ecosystem of Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan 430072, China

4College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China

5Agriculture School, Kunming University, Kunming 650214, China

Keywords: Amphi-Pacific disjunction; Asian-North American disjunction; biogeography; Dalrympelea; generic delimitation; Euscaphis; Staphylea; Turpinia

Abstract:

Staphyleaceae traditionally comprises three genera of temperate and tropical trees and shrubs: Euscaphis Siebold & Zucc., Staphylea L., and Tuprinia Vent. These genera are clearly supported by morphology, but a recent classification based on four chloroplast genes and nuclear ITS treats Staphylea, Euscaphis, and New WorldTurpinia in Staphylea s.l. and Old World Turpinia in Dalrympelea Roxb. In this study, our objectives were to (1) resolve the phylogenetic relationships within Staphyleaceae using two nuclear and six chloroplast markers, (2) explore morphological synapomorphies that support major clades, and (3) discuss the implications of our results on generic delimitation and biogeography. Our phylogenetic results show five major clades in Staphyleaceae: (1) Old World Turpinia, (2) New World Turpinia, (3) a clade of exclusively Old World Staphylea, (4) an Asian-North American clade of Staphylea comprising all New World species and the rest of the Old World ones, and (5) Euscaphis. Within the two clades each of Staphylea and Turpinia, morphological features traditionally used for delimiting the genera may exhibit convergence. Among morphological features examined in this study, we found that pollen is not taxonomically informative, features of leaf teeth and epicuticular waxes show limited support for the traditional genera of Staphylea and Tuprinia, respectively, and petal length (i.e., flower size) is significantly smaller in Old World Turpinia compared to New World Turpinia. With respect to biogeography, our results support a rare disjunction between eastern North America and the Himalayas.

 

Copyright © 2017. The Editorial Office, Journal of Systematics and Evolution, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel.: +86 10 62836132; 62836572    Fax:+86 10 62836132
E-mail: jse@ibcas.ac.cn