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Phylogenetic Relationships in Solanum Section Androceras (Solanaceae)

The Leptostemonum clade of Solanum contains approximately 350–450 species, including the cultivated eggplant, S. melongena. This clade is characterized by the presence of prickles and apically attenuate anthers. Solanum section Androceras, the focus of this study, is a group of ca. 12 species belong... Full description

Journal Title: Systematic botany 2010-10, Vol.35 (4), p.885-893
Main Author: Stern, Stephen R
Other Authors: Weese, Terri , Bohs, Lynn A
Format: Electronic Article Electronic Article
Language: English
Subjects:
ITS
Quelle: Alma/SFX Local Collection
Publisher: American Society of Plant Toxonomists
ID: ISSN: 0363-6445
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recordid: cdi_crossref_primary_10_1600_036364410X539934
title: Phylogenetic Relationships in Solanum Section Androceras (Solanaceae)
format: Article
creator:
  • Stern, Stephen R
  • Weese, Terri
  • Bohs, Lynn A
subjects:
  • Biological taxonomies
  • Datasets
  • Enantiostyly
  • Flavonoids
  • Flowers
  • Genetic aspects
  • Heteranthery
  • ITS
  • Melongena
  • Mexico
  • Monophyly
  • Parsimony
  • Phylogenetics
  • Phylogeny
  • Physiological aspects
  • Plants
  • Solanaceae
  • Solanum
  • Solanum tenuipes
  • Taxa
  • Trnt-F
  • Waxy
ispartof: Systematic botany, 2010-10, Vol.35 (4), p.885-893
description: The Leptostemonum clade of Solanum contains approximately 350–450 species, including the cultivated eggplant, S. melongena. This clade is characterized by the presence of prickles and apically attenuate anthers. Solanum section Androceras, the focus of this study, is a group of ca. 12 species belonging to the Leptostemonum clade. This section is unusual in the genus because of its mostly north temperate distribution and distinctive zygomorphic, heterantherous, and enantiostylous flowers. We infer phylogenetic relationships among 43 Solanum taxa, including 11 species and all varieties of sect. Androceras, using DNA sequence data from two nuclear regions (ITS and the granule-bound starch synthase gene [GBSSI or waxy]) and the chloroplast region trnT-F. The combined phylogenetic tree supports sect. Androceras as a monophyletic group sister to Solanum sect. Crinitum. Only one of the three series proposed by previous taxonomists, ser. Pacificum, is supported as monophyletic. Solanum tenuipes from the northern Chihuahua Desert is sister to the remaining species in sect. Androceras. Species-level relationships were also examined and it was found that two species, S. heterodoxum and S. citrullifolium, are not monophyletic. The ancestral flower color in sect. Androceras appears to be violet, with white and yellow flowers restricted to more derived clades. Characters formerly used to diagnose ser. Androceras, such as exclusively branched hairs and lack of complex foliar flavonoids, appear to have evolved more than once in the section.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0363-6445
fulltext: fulltext
issn:
  • 0363-6445
  • 1548-2324
url: Link


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descriptionThe Leptostemonum clade of Solanum contains approximately 350–450 species, including the cultivated eggplant, S. melongena. This clade is characterized by the presence of prickles and apically attenuate anthers. Solanum section Androceras, the focus of this study, is a group of ca. 12 species belonging to the Leptostemonum clade. This section is unusual in the genus because of its mostly north temperate distribution and distinctive zygomorphic, heterantherous, and enantiostylous flowers. We infer phylogenetic relationships among 43 Solanum taxa, including 11 species and all varieties of sect. Androceras, using DNA sequence data from two nuclear regions (ITS and the granule-bound starch synthase gene [GBSSI or waxy]) and the chloroplast region trnT-F. The combined phylogenetic tree supports sect. Androceras as a monophyletic group sister to Solanum sect. Crinitum. Only one of the three series proposed by previous taxonomists, ser. Pacificum, is supported as monophyletic. Solanum tenuipes from the northern Chihuahua Desert is sister to the remaining species in sect. Androceras. Species-level relationships were also examined and it was found that two species, S. heterodoxum and S. citrullifolium, are not monophyletic. The ancestral flower color in sect. Androceras appears to be violet, with white and yellow flowers restricted to more derived clades. Characters formerly used to diagnose ser. Androceras, such as exclusively branched hairs and lack of complex foliar flavonoids, appear to have evolved more than once in the section.
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subjectBiological taxonomies ; Datasets ; Enantiostyly ; Flavonoids ; Flowers ; Genetic aspects ; Heteranthery ; ITS ; Melongena ; Mexico ; Monophyly ; Parsimony ; Phylogenetics ; Phylogeny ; Physiological aspects ; Plants ; Solanaceae ; Solanum ; Solanum tenuipes ; Taxa ; Trnt-F ; Waxy
ispartofSystematic botany, 2010-10, Vol.35 (4), p.885-893
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descriptionThe Leptostemonum clade of Solanum contains approximately 350–450 species, including the cultivated eggplant, S. melongena. This clade is characterized by the presence of prickles and apically attenuate anthers. Solanum section Androceras, the focus of this study, is a group of ca. 12 species belonging to the Leptostemonum clade. This section is unusual in the genus because of its mostly north temperate distribution and distinctive zygomorphic, heterantherous, and enantiostylous flowers. We infer phylogenetic relationships among 43 Solanum taxa, including 11 species and all varieties of sect. Androceras, using DNA sequence data from two nuclear regions (ITS and the granule-bound starch synthase gene [GBSSI or waxy]) and the chloroplast region trnT-F. The combined phylogenetic tree supports sect. Androceras as a monophyletic group sister to Solanum sect. Crinitum. Only one of the three series proposed by previous taxonomists, ser. Pacificum, is supported as monophyletic. Solanum tenuipes from the northern Chihuahua Desert is sister to the remaining species in sect. Androceras. Species-level relationships were also examined and it was found that two species, S. heterodoxum and S. citrullifolium, are not monophyletic. The ancestral flower color in sect. Androceras appears to be violet, with white and yellow flowers restricted to more derived clades. Characters formerly used to diagnose ser. Androceras, such as exclusively branched hairs and lack of complex foliar flavonoids, appear to have evolved more than once in the section.
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abstractThe Leptostemonum clade of Solanum contains approximately 350–450 species, including the cultivated eggplant, S. melongena. This clade is characterized by the presence of prickles and apically attenuate anthers. Solanum section Androceras, the focus of this study, is a group of ca. 12 species belonging to the Leptostemonum clade. This section is unusual in the genus because of its mostly north temperate distribution and distinctive zygomorphic, heterantherous, and enantiostylous flowers. We infer phylogenetic relationships among 43 Solanum taxa, including 11 species and all varieties of sect. Androceras, using DNA sequence data from two nuclear regions (ITS and the granule-bound starch synthase gene [GBSSI or waxy]) and the chloroplast region trnT-F. The combined phylogenetic tree supports sect. Androceras as a monophyletic group sister to Solanum sect. Crinitum. Only one of the three series proposed by previous taxonomists, ser. Pacificum, is supported as monophyletic. Solanum tenuipes from the northern Chihuahua Desert is sister to the remaining species in sect. Androceras. Species-level relationships were also examined and it was found that two species, S. heterodoxum and S. citrullifolium, are not monophyletic. The ancestral flower color in sect. Androceras appears to be violet, with white and yellow flowers restricted to more derived clades. Characters formerly used to diagnose ser. Androceras, such as exclusively branched hairs and lack of complex foliar flavonoids, appear to have evolved more than once in the section.
pubAmerican Society of Plant Toxonomists
doi10.1600/036364410X539934
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