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Citation for Study 10013

About Citation title: "Reassignment of species of paraphyletic Junellia s.l. to the new genus Mulguraea (Verbenaceae) and new circumscription of genus Junellia: molecular and morphological congruence".
About This study was previously identified under the legacy study ID S2349 (Status: Published).

Citation

O'leary N., Yuan Y., Chemisquy M., & Olmstead R. 2009. Reassignment of species of paraphyletic Junellia s.l. to the new genus Mulguraea (Verbenaceae) and new circumscription of genus Junellia: molecular and morphological congruence. Systematic Botany, 34(4): 777-786.

Authors

  • O'leary N.
  • Yuan Y.
  • Chemisquy M.
  • Olmstead R.

Abstract

Verbenaceae tribe Verbeneae includes three major genera, Verbena, Glandularia, and Junellia, which form a recently diversified group. Junellia is a South American genus, whereas Verbena and Glandularia are distributed in temperate regions of both South and North America. Seven non-coding chloroplast regions were sequenced, these include intergenic spacers and/or introns in trnD-trnT, trnS-trnG, trnS-trnfM, trnT-trnL, trnG, trnL, and trnL-trnF; and the nuclear ITS and ETS regions also were sequenced. Together with previous studies, these results suggest that Junellia, as traditionally conceived, is paraphyletic and forms two clades that are ancestral to Verbena and Glandularia. Junellia should be restricted to the clade containing the type, J. micrantha, which also includes Glandularia subgenus Paraglandularia and the genus Urbania. Consequently Urbania and Glandularia subgenus Paraglandularia are reduced to synonymy under Junellia, and eight new combinations in Junellia are proposed: Junellia ballsii, J. crithmifolia, J. fasciculata, J. hookeriana, J. lucanensis, J. occulta, J. pappigera and J. origenes. The remaining Junellia species form a monophyletic group here designated as the new genus Mulguraea, with 13 new combinations: Mulguraea arequipense, M. asparagoides, M. aspera var. aspera, M. aspera var. longidentata, M. cedroides, M. cinerascens, M. echegarayi, M. hystrix, M. ligustrina var. ligustrina, M. ligustrina var. lorentzii, M. scoparia, M. tetragonocalyx and M. tridens. Verbena and Glandularia s.s. are both monophyletic, relationships within each genus are extremely difficult to resolve, nevertheless there is evidence that South and North American Verbena might both be monophyletic. Verbena and Glandularia are sister groups, and together they are sister to the reconstituted Junellia. Mulguraea is sister to the group comprising all the three genera, Verbena, Glandularia, and Junellia.

Keywords

Glandularia, new combinations, Paraglandularia, phylogeny, taxonomy, Verbena, Verbeneae

External links

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S10013
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