@ARTICLE{TreeBASE2Ref15114,
author = {Michael D. Crisp and Lyn G. Cook},
title = {Molecular Evidence for Definition of Genera in the Oxylobium Group (Fabaceae: Mirbelieae)},
year = {2003},
keywords = {},
doi = {10.1043/02-69.1},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {28},
number = {4},
pages = {705--713},
abstract = {The circumscription of Oxylobium and related genera has been problematic for nearly 200 years. Traditional definitions of genera in the group have relied on morphological features of the leaves, flower, and fruit that overlap extensively between genera. Therefore sequences of cpDNA (trnL-F intron and spacer) and nrDNA (ITS) were used to estimate the phylogeny of the group in an attempt to redefine the genera as monophyletic groups. Oxylobium sens. str. was found to be a well supported clade in both data sets, with the inclusion of Mirbelia oxylobioides. No other genus in the group was supported by these data, except Gastrolobium sens. lat. Some species groups within Chorizema, Mirbelia, and Podolobium were supported but relationships among these, Oxylobium and Gastrolobium differed significantly between the chloroplast and nuclear data sets. No group supported by the molecular data had a morphological synapomorphy, not even Oxylobium or Gastrolobium. Therefore it may be necessary to adopt a much broader generic concept in this group than has been done previously. Incongruence between the two molecular data sets, and very short internal basal branches in both, suggest a rapid early radiation in this group, possibly combined with hybridization and lineage sorting.}
}
Citation for Study 989
Citation title:
"Molecular Evidence for Definition of Genera in the Oxylobium Group (Fabaceae: Mirbelieae)".
This study was previously identified under the legacy study ID S875
(Status: Published).
Citation
Crisp M., & Cook L. 2003. Molecular Evidence for Definition of Genera in the Oxylobium Group (Fabaceae: Mirbelieae). Systematic Botany, 28(4): 705-713.
Authors
Abstract
The circumscription of Oxylobium and related genera has been problematic for nearly 200 years. Traditional definitions of genera in the group have relied on morphological features of the leaves, flower, and fruit that overlap extensively between genera. Therefore sequences of cpDNA (trnL-F intron and spacer) and nrDNA (ITS) were used to estimate the phylogeny of the group in an attempt to redefine the genera as monophyletic groups. Oxylobium sens. str. was found to be a well supported clade in both data sets, with the inclusion of Mirbelia oxylobioides. No other genus in the group was supported by these data, except Gastrolobium sens. lat. Some species groups within Chorizema, Mirbelia, and Podolobium were supported but relationships among these, Oxylobium and Gastrolobium differed significantly between the chloroplast and nuclear data sets. No group supported by the molecular data had a morphological synapomorphy, not even Oxylobium or Gastrolobium. Therefore it may be necessary to adopt a much broader generic concept in this group than has been done previously. Incongruence between the two molecular data sets, and very short internal basal branches in both, suggest a rapid early radiation in this group, possibly combined with hybridization and lineage sorting.
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- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S989
- Other versions:
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref15114,
author = {Michael D. Crisp and Lyn G. Cook},
title = {Molecular Evidence for Definition of Genera in the Oxylobium Group (Fabaceae: Mirbelieae)},
year = {2003},
keywords = {},
doi = {10.1043/02-69.1},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {28},
number = {4},
pages = {705--713},
abstract = {The circumscription of Oxylobium and related genera has been problematic for nearly 200 years. Traditional definitions of genera in the group have relied on morphological features of the leaves, flower, and fruit that overlap extensively between genera. Therefore sequences of cpDNA (trnL-F intron and spacer) and nrDNA (ITS) were used to estimate the phylogeny of the group in an attempt to redefine the genera as monophyletic groups. Oxylobium sens. str. was found to be a well supported clade in both data sets, with the inclusion of Mirbelia oxylobioides. No other genus in the group was supported by these data, except Gastrolobium sens. lat. Some species groups within Chorizema, Mirbelia, and Podolobium were supported but relationships among these, Oxylobium and Gastrolobium differed significantly between the chloroplast and nuclear data sets. No group supported by the molecular data had a morphological synapomorphy, not even Oxylobium or Gastrolobium. Therefore it may be necessary to adopt a much broader generic concept in this group than has been done previously. Incongruence between the two molecular data sets, and very short internal basal branches in both, suggest a rapid early radiation in this group, possibly combined with hybridization and lineage sorting.}
}
- Show RIS reference
TY - JOUR
ID - 15114
AU - Crisp,Michael D.
AU - Cook,Lyn G.
T1 - Molecular Evidence for Definition of Genera in the Oxylobium Group (Fabaceae: Mirbelieae)
PY - 2003
KW -
UR - http://dx.doi.org/10.1043/02-69.1
N2 - The circumscription of Oxylobium and related genera has been problematic for nearly 200 years. Traditional definitions of genera in the group have relied on morphological features of the leaves, flower, and fruit that overlap extensively between genera. Therefore sequences of cpDNA (trnL-F intron and spacer) and nrDNA (ITS) were used to estimate the phylogeny of the group in an attempt to redefine the genera as monophyletic groups. Oxylobium sens. str. was found to be a well supported clade in both data sets, with the inclusion of Mirbelia oxylobioides. No other genus in the group was supported by these data, except Gastrolobium sens. lat. Some species groups within Chorizema, Mirbelia, and Podolobium were supported but relationships among these, Oxylobium and Gastrolobium differed significantly between the chloroplast and nuclear data sets. No group supported by the molecular data had a morphological synapomorphy, not even Oxylobium or Gastrolobium. Therefore it may be necessary to adopt a much broader generic concept in this group than has been done previously. Incongruence between the two molecular data sets, and very short internal basal branches in both, suggest a rapid early radiation in this group, possibly combined with hybridization and lineage sorting.
L3 - 10.1043/02-69.1
JF - Systematic Botany
VL - 28
IS - 4
SP - 705
EP - 713
ER -
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