文献类型： 外文期刊

作者： Harris, A. J. ¹ ; Chen, Ping-Ting ² ; Xu, Xin-Wei ³ ; Zhang, Jian-Qiang ⁴ ; Yang, Xue ⁵ ; Wen, Jun ¹ ;

作者机构： 1.Smithsonian Inst, Dept Bot, Natl Museum Nat Hist, MRC166, Washington, DC 20013 USA

2.Hubei Acad Agr Sci, Inst Agr Econ & Informat, Wuhan 430064, Peoples R China

3.Wuhan Univ, Coll Life Sci, Natl Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan 430072, Peoples R China

4.Shaanxi Normal Univ, Coll Life Sci, Xian 710119, Peoples R China

5.Kunming Univ, Sch Agr, Kunming 650214, Peoples R China

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

期刊名称：JOURNAL OF SYSTEMATICS AND EVOLUTION （ 影响因子：4.098； 五年影响因子：4.735 ）

ISSN： 1674-4918

年卷期： 2017 年 55 卷 2 期

页码：

收录情况： SCI

摘要： 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 World Turpinia 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.