@ARTICLE{TreeBASE2Ref18891,
author = {Corrie S. Moreau},
title = {Unraveling the evolutionary history of the ?hyperdiverse? ant genus Pheidole (Hymenoptera: Formicidae)},
year = {2008},
keywords = {Formicidae, ants, Pheidole, phylogeny, hyperdiverse},
doi = {10.1016/j.ympev.2008.02.020 },
url = {http://},
pmid = {18394929},
journal = {Molecular Phylogenetics and Evolution},
volume = {48},
number = {1},
pages = {224--239},
abstract = {Pheidole is currently the most species rich genus of ants in the world, with many taxa still awaiting description. In this study, I reconstruct the phylogeny of Pheidole using molecular characters from three mitochondrial genes and two nuclear genes for 140 species. The phylogenetic relationships of Pheidole are investigated with special interest in understanding factors that may have led to their remarkable diversity. The results presented here establish a framework for understanding the explosive radiation of this group by providing (1) a phylogenetic estimate, and (2) a comparative analysis of life history traits that are likely to have been important in the diversification of the group. In all analyses, Pheidole is recovered as a monophyletic lineage, and molecular clock estimates infer an age of 58.4?61.2 million years ago (Ma) for crown group members of the genus. Using an estimate of diversification rate, it appears that Pheidole has undergone 0.108?0.103 speciation events per million years. Previous hypotheses of species groups were largely not upheld in the analyses presented here. Workers of the genus Pheidole are dimorphic with a minor and major (soldier) subcaste. A third subcaste of super majors is known in eight species of Pheidole and this trait was found to have arisen multiple times throughout the phylogeny. Seed harvesting is common among species of the genus and is thought to be one of the factors leading to the diversification of the group, but additional data will be required to further test this hypothesis. To address biogeographic questions on the origin of the genus, both New and Old World species were included in these analyses, and the results suggest that Pheidole is New World in origin with a possible single introduction into the Old World.}
}
Citation for Study 10430
Citation title:
"Unraveling the evolutionary history of the ?hyperdiverse? ant genus Pheidole (Hymenoptera: Formicidae)".
Study name:
"Unraveling the evolutionary history of the ?hyperdiverse? ant genus Pheidole (Hymenoptera: Formicidae)".
This study is part of submission 10420
(Status: Published).
Citation
Moreau C.S. 2008. Unraveling the evolutionary history of the ?hyperdiverse? ant genus Pheidole (Hymenoptera: Formicidae). Molecular Phylogenetics and Evolution, 48(1): 224-239.
Authors
-
Moreau C.S.
(submitter)
312-665-7743
Abstract
Pheidole is currently the most species rich genus of ants in the world, with many taxa still awaiting description. In this study, I reconstruct the phylogeny of Pheidole using molecular characters from three mitochondrial genes and two nuclear genes for 140 species. The phylogenetic relationships of Pheidole are investigated with special interest in understanding factors that may have led to their remarkable diversity. The results presented here establish a framework for understanding the explosive radiation of this group by providing (1) a phylogenetic estimate, and (2) a comparative analysis of life history traits that are likely to have been important in the diversification of the group. In all analyses, Pheidole is recovered as a monophyletic lineage, and molecular clock estimates infer an age of 58.4?61.2 million years ago (Ma) for crown group members of the genus. Using an estimate of diversification rate, it appears that Pheidole has undergone 0.108?0.103 speciation events per million years. Previous hypotheses of species groups were largely not upheld in the analyses presented here. Workers of the genus Pheidole are dimorphic with a minor and major (soldier) subcaste. A third subcaste of super majors is known in eight species of Pheidole and this trait was found to have arisen multiple times throughout the phylogeny. Seed harvesting is common among species of the genus and is thought to be one of the factors leading to the diversification of the group, but additional data will be required to further test this hypothesis. To address biogeographic questions on the origin of the genus, both New and Old World species were included in these analyses, and the results suggest that Pheidole is New World in origin with a possible single introduction into the Old World.
Keywords
Formicidae, ants, Pheidole, phylogeny, hyperdiverse
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S10430
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@ARTICLE{TreeBASE2Ref18891,
author = {Corrie S. Moreau},
title = {Unraveling the evolutionary history of the ?hyperdiverse? ant genus Pheidole (Hymenoptera: Formicidae)},
year = {2008},
keywords = {Formicidae, ants, Pheidole, phylogeny, hyperdiverse},
doi = {10.1016/j.ympev.2008.02.020 },
url = {http://},
pmid = {18394929},
journal = {Molecular Phylogenetics and Evolution},
volume = {48},
number = {1},
pages = {224--239},
abstract = {Pheidole is currently the most species rich genus of ants in the world, with many taxa still awaiting description. In this study, I reconstruct the phylogeny of Pheidole using molecular characters from three mitochondrial genes and two nuclear genes for 140 species. The phylogenetic relationships of Pheidole are investigated with special interest in understanding factors that may have led to their remarkable diversity. The results presented here establish a framework for understanding the explosive radiation of this group by providing (1) a phylogenetic estimate, and (2) a comparative analysis of life history traits that are likely to have been important in the diversification of the group. In all analyses, Pheidole is recovered as a monophyletic lineage, and molecular clock estimates infer an age of 58.4?61.2 million years ago (Ma) for crown group members of the genus. Using an estimate of diversification rate, it appears that Pheidole has undergone 0.108?0.103 speciation events per million years. Previous hypotheses of species groups were largely not upheld in the analyses presented here. Workers of the genus Pheidole are dimorphic with a minor and major (soldier) subcaste. A third subcaste of super majors is known in eight species of Pheidole and this trait was found to have arisen multiple times throughout the phylogeny. Seed harvesting is common among species of the genus and is thought to be one of the factors leading to the diversification of the group, but additional data will be required to further test this hypothesis. To address biogeographic questions on the origin of the genus, both New and Old World species were included in these analyses, and the results suggest that Pheidole is New World in origin with a possible single introduction into the Old World.}
}
- Show RIS reference
TY - JOUR
ID - 18891
AU - Moreau,Corrie S.
T1 - Unraveling the evolutionary history of the ?hyperdiverse? ant genus Pheidole (Hymenoptera: Formicidae)
PY - 2008
KW - Formicidae
KW - ants
KW - Pheidole
KW - phylogeny
KW - hyperdiverse
UR - http://dx.doi.org/10.1016/j.ympev.2008.02.020
N2 - Pheidole is currently the most species rich genus of ants in the world, with many taxa still awaiting description. In this study, I reconstruct the phylogeny of Pheidole using molecular characters from three mitochondrial genes and two nuclear genes for 140 species. The phylogenetic relationships of Pheidole are investigated with special interest in understanding factors that may have led to their remarkable diversity. The results presented here establish a framework for understanding the explosive radiation of this group by providing (1) a phylogenetic estimate, and (2) a comparative analysis of life history traits that are likely to have been important in the diversification of the group. In all analyses, Pheidole is recovered as a monophyletic lineage, and molecular clock estimates infer an age of 58.4?61.2 million years ago (Ma) for crown group members of the genus. Using an estimate of diversification rate, it appears that Pheidole has undergone 0.108?0.103 speciation events per million years. Previous hypotheses of species groups were largely not upheld in the analyses presented here. Workers of the genus Pheidole are dimorphic with a minor and major (soldier) subcaste. A third subcaste of super majors is known in eight species of Pheidole and this trait was found to have arisen multiple times throughout the phylogeny. Seed harvesting is common among species of the genus and is thought to be one of the factors leading to the diversification of the group, but additional data will be required to further test this hypothesis. To address biogeographic questions on the origin of the genus, both New and Old World species were included in these analyses, and the results suggest that Pheidole is New World in origin with a possible single introduction into the Old World.
L3 - 10.1016/j.ympev.2008.02.020
JF - Molecular Phylogenetics and Evolution
VL - 48
IS - 1
SP - 224
EP - 239
ER -