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Citation for Study 11815

About Citation title: "Implications from molecular phylogenetic data for systematics, biogeography and growth form evolution of Thottea (Aristolochiaceae).".
About Study name: "Implications from molecular phylogenetic data for systematics, biogeography and growth form evolution of Thottea (Aristolochiaceae).".
About This study is part of submission 11815 (Status: Published).

Citation

Oelschl?gel B., Wagner S., Salomo K., Pradeep N.S., Yao T.L., Isnard S., Rowe N., Neinhuis C., & Wanke S. 2011. Implications from molecular phylogenetic data for systematics, biogeography and growth form evolution of Thottea (Aristolochiaceae). The Gardens' Bulletin Singapore, 63(1 & 2): 259?275.

Authors

  • Oelschl?gel B.
  • Wagner S.
  • Salomo K.
  • Pradeep N.S.
  • Yao T.L.
  • Isnard S.
  • Rowe N.
  • Neinhuis C.
  • Wanke S.

Abstract

The genus Thottea comprises about 35 species distributed from India throughout Southeast Asia. However, most of the species have a narrow distribution. A first molecular phylogeny based on the chloroplast trnK intron, matK gene and trnK-psbA spacer is presented and confirms the monophyly of the genus according to Hou in 1981. Earlier subdivisions into the sections or genera Apama and Thottea could not be substantiated since both proved to be paraphyletic with respect to each other. The taxonomic and systematic history of Thottea is discussed with respect to molecular and morphological data. Thottea piperiformis is sister to all other species, which gives limited recognition to Asiphonia piperiformis as proposed by Huber (1985). Thottea tomentosa, one of the smallest and most widespread species is subsequently sister to all remaining species. Thottea diversified in two biogeographic regions: the Western Ghats in India and the Indo-Malayan region. A high degree of endemism is observed resulting from the presence of very few species shared between islands, which might be the result of a single colonisation and subsequent radiation. Within Piperales, Thottea holds a key position between the herbaceous Asaroideae and the woody Aristolochioideae.

Keywords

molecular phylogeny, Thottea, Aristolochiaceae, systematics, biogeography

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S11815
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