@ARTICLE{TreeBASE2Ref21669,
author = {Mihai Costea and Ignacio Garcia and Kristy Docksteder and Sasa Stefanovic},
title = {More problems despite bigger flowers: systematics of Cuscuta tinctoria clade (subgenus Grammica, Convolvulaceae) with description of six new species},
year = {2013},
keywords = {Australia, Cuscuta, dodders, evolution, floristics, geographical distribution, host range, ITS, morphology, Mexico, new species, North and Central America, parasitic, phenology, phylogeny, taxonomy, trnL-F},
doi = {},
url = {http://},
pmid = {},
journal = {Systematic Botany},
volume = {},
number = {},
pages = {},
abstract = {Cuscuta tinctoria clade, the second largest infrageneric group of subg. Grammica, includes 14 species with Mexico and adjacent regions as a center of diversity, but also two species found in Australia presumably as a result of a long-distance dispersal event. Flowers, pollen, and stigmas are among the largest in Cuscuta, and plants are xenogamous or facultatively xenogamous. Perhaps more than in other major clades of subg. Grammica, the convergent evolution of some important morphological characters, for example of the calyx and gynoecium/capsule, has obscured identity of some species and has hindered previous efforts to determine their limits. Basic morphology, scanning electron microscopy and sequence data from the nuclear internal transcribed spacer (ITS) and the plastid trnL-F region were used to reconstruct the phylogeny, gain a better understanding of the evolutionary history, and determine species boundaries. Overall, species were grouped in five subclades. Based on their morphological and molecular similarly, C. tinctoria, C. aurea, and C. floribunda represent one single species. The latter two species were retained as a variety of the former, C. tinctoria var. aurea and var. floribunda, respectively. Our results also show that in their currently accepted delimitation C. rugosiceps and C. tinctoria are polyphyletic, the former including one new species, C. volcanica, and the latter two new species, C. timida and C. tolteca. In addition, three other new species are described: two that have multicellular protuberances on the calyx and/or corolla lobes, C. iguanella and C. insolita, and one with broader that long calyx lobes, C. montana. A taxonomic treatment with an identification key, descriptions, and illustrations is provided.}
}
Citation for Study 13806
Citation title:
"More problems despite bigger flowers: systematics of Cuscuta tinctoria clade (subgenus Grammica, Convolvulaceae) with description of six new species".
Study name:
"More problems despite bigger flowers: systematics of Cuscuta tinctoria clade (subgenus Grammica, Convolvulaceae) with description of six new species".
This study is part of submission 13806
(Status: Published).
Citation
Costea M., Garcia I., Docksteder K., & Stefanovic S. 2013. More problems despite bigger flowers: systematics of Cuscuta tinctoria clade (subgenus Grammica, Convolvulaceae) with description of six new species. Systematic Botany, .
Authors
Abstract
Cuscuta tinctoria clade, the second largest infrageneric group of subg. Grammica, includes 14 species with Mexico and adjacent regions as a center of diversity, but also two species found in Australia presumably as a result of a long-distance dispersal event. Flowers, pollen, and stigmas are among the largest in Cuscuta, and plants are xenogamous or facultatively xenogamous. Perhaps more than in other major clades of subg. Grammica, the convergent evolution of some important morphological characters, for example of the calyx and gynoecium/capsule, has obscured identity of some species and has hindered previous efforts to determine their limits. Basic morphology, scanning electron microscopy and sequence data from the nuclear internal transcribed spacer (ITS) and the plastid trnL-F region were used to reconstruct the phylogeny, gain a better understanding of the evolutionary history, and determine species boundaries. Overall, species were grouped in five subclades. Based on their morphological and molecular similarly, C. tinctoria, C. aurea, and C. floribunda represent one single species. The latter two species were retained as a variety of the former, C. tinctoria var. aurea and var. floribunda, respectively. Our results also show that in their currently accepted delimitation C. rugosiceps and C. tinctoria are polyphyletic, the former including one new species, C. volcanica, and the latter two new species, C. timida and C. tolteca. In addition, three other new species are described: two that have multicellular protuberances on the calyx and/or corolla lobes, C. iguanella and C. insolita, and one with broader that long calyx lobes, C. montana. A taxonomic treatment with an identification key, descriptions, and illustrations is provided.
Keywords
Australia, Cuscuta, dodders, evolution, floristics, geographical distribution, host range, ITS, morphology, Mexico, new species, North and Central America, parasitic, phenology, phylogeny, taxonomy, trnL-F
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http://purl.org/phylo/treebase/phylows/study/TB2:S13806
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref21669,
author = {Mihai Costea and Ignacio Garcia and Kristy Docksteder and Sasa Stefanovic},
title = {More problems despite bigger flowers: systematics of Cuscuta tinctoria clade (subgenus Grammica, Convolvulaceae) with description of six new species},
year = {2013},
keywords = {Australia, Cuscuta, dodders, evolution, floristics, geographical distribution, host range, ITS, morphology, Mexico, new species, North and Central America, parasitic, phenology, phylogeny, taxonomy, trnL-F},
doi = {},
url = {http://},
pmid = {},
journal = {Systematic Botany},
volume = {},
number = {},
pages = {},
abstract = {Cuscuta tinctoria clade, the second largest infrageneric group of subg. Grammica, includes 14 species with Mexico and adjacent regions as a center of diversity, but also two species found in Australia presumably as a result of a long-distance dispersal event. Flowers, pollen, and stigmas are among the largest in Cuscuta, and plants are xenogamous or facultatively xenogamous. Perhaps more than in other major clades of subg. Grammica, the convergent evolution of some important morphological characters, for example of the calyx and gynoecium/capsule, has obscured identity of some species and has hindered previous efforts to determine their limits. Basic morphology, scanning electron microscopy and sequence data from the nuclear internal transcribed spacer (ITS) and the plastid trnL-F region were used to reconstruct the phylogeny, gain a better understanding of the evolutionary history, and determine species boundaries. Overall, species were grouped in five subclades. Based on their morphological and molecular similarly, C. tinctoria, C. aurea, and C. floribunda represent one single species. The latter two species were retained as a variety of the former, C. tinctoria var. aurea and var. floribunda, respectively. Our results also show that in their currently accepted delimitation C. rugosiceps and C. tinctoria are polyphyletic, the former including one new species, C. volcanica, and the latter two new species, C. timida and C. tolteca. In addition, three other new species are described: two that have multicellular protuberances on the calyx and/or corolla lobes, C. iguanella and C. insolita, and one with broader that long calyx lobes, C. montana. A taxonomic treatment with an identification key, descriptions, and illustrations is provided.}
}
- Show RIS reference
TY - JOUR
ID - 21669
AU - Costea,Mihai
AU - Garcia,Ignacio
AU - Docksteder,Kristy
AU - Stefanovic,Sasa
T1 - More problems despite bigger flowers: systematics of Cuscuta tinctoria clade (subgenus Grammica, Convolvulaceae) with description of six new species
PY - 2013
KW - Australia
KW - Cuscuta
KW - dodders
KW - evolution
KW - floristics
KW - geographical distribution
KW - host range
KW - ITS
KW - morphology
KW - Mexico
KW - new species
KW - North and Central America
KW - parasitic
KW - phenology
KW - phylogeny
KW - taxonomy
KW - trnL-F
UR - http://dx.doi.org/
N2 - Cuscuta tinctoria clade, the second largest infrageneric group of subg. Grammica, includes 14 species with Mexico and adjacent regions as a center of diversity, but also two species found in Australia presumably as a result of a long-distance dispersal event. Flowers, pollen, and stigmas are among the largest in Cuscuta, and plants are xenogamous or facultatively xenogamous. Perhaps more than in other major clades of subg. Grammica, the convergent evolution of some important morphological characters, for example of the calyx and gynoecium/capsule, has obscured identity of some species and has hindered previous efforts to determine their limits. Basic morphology, scanning electron microscopy and sequence data from the nuclear internal transcribed spacer (ITS) and the plastid trnL-F region were used to reconstruct the phylogeny, gain a better understanding of the evolutionary history, and determine species boundaries. Overall, species were grouped in five subclades. Based on their morphological and molecular similarly, C. tinctoria, C. aurea, and C. floribunda represent one single species. The latter two species were retained as a variety of the former, C. tinctoria var. aurea and var. floribunda, respectively. Our results also show that in their currently accepted delimitation C. rugosiceps and C. tinctoria are polyphyletic, the former including one new species, C. volcanica, and the latter two new species, C. timida and C. tolteca. In addition, three other new species are described: two that have multicellular protuberances on the calyx and/or corolla lobes, C. iguanella and C. insolita, and one with broader that long calyx lobes, C. montana. A taxonomic treatment with an identification key, descriptions, and illustrations is provided.
L3 -
JF - Systematic Botany
VL -
IS -
ER -
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