@ARTICLE{TreeBASE2Ref20798,
author = {Ron J. Etter and Elizabeth E. Boyle and Amanda Glazier and Robert M. Jennings and Ediane Dutra and Mike R. Chase},
title = {Phylogeography of a pan-Atlantic abyssal protobranch bivalve: implications for evolution in the Deep Atlantic.},
year = {2011},
keywords = {ecological genetics; molecular evolution; molluscs; phylogeography},
doi = {10.1111/j.1365-294X.2010.04978.x},
url = {http://www.ncbi.nlm.nih.gov/pubmed/21199034},
pmid = {21199034},
journal = {Molecular Ecology},
volume = {20},
number = {4},
pages = {829--843},
abstract = {The deep sea is a vast and essentially continuous environment with few obvious barriers to gene flow. How populations diverge and new species form in this remote ecosystem is poorly understood. Phylogeographical analyses have begun to provide some insight into evolutionary processes at bathyal depths (<3000 m), but much less is known about evolution in the more extensive abyssal regions (>3000 m). Here, we quantify geographical and bathymetric patterns of genetic variation (16S rRNA mitochondrial gene) in the protobranch bivalve Ledella ultima, which is one of the most abundant abyssal protobranchs in the Atlantic with a broad bathymetric and geographical distribution. We found virtually no genetic divergence within basins and only modest divergence among eight Atlantic basins. Levels of population divergence among basins were related to geographical distance and were greater in the South Atlantic than in the North Atlantic. Ocean-wide patterns of genetic variation indicate basin-wide divergence that exceeds what others have found for abyssal organisms, but considerably less than bathyal protobranchs across similar geographical scales. Populations on either side of the Mid-Atlantic Ridge in the North Atlantic differed, suggesting the Ridge might impede gene flow at abyssal depths. Our results indicate that abyssal populations might be quite large (cosmopolitan), exhibit only modest genetic structure and probably provide little potential for the formation of new species.}
}
Citation for Study 12828
Citation title:
"Phylogeography of a pan-Atlantic abyssal protobranch bivalve: implications for evolution in the Deep Atlantic.".
Study name:
"Phylogeography of a pan-Atlantic abyssal protobranch bivalve: implications for evolution in the Deep Atlantic.".
This study is part of submission 12828
(Status: Published).
Citation
Etter R.J., Boyle E.E., Glazier A., Jennings R.M., Dutra E., & Chase M.R. 2011. Phylogeography of a pan-Atlantic abyssal protobranch bivalve: implications for evolution in the Deep Atlantic. Molecular Ecology, 20(4): 829-843.
Authors
-
Etter R.J.
-
Boyle E.E.
-
Glazier A.
-
Jennings R.M.
-
Dutra E.
-
Chase M.R.
Abstract
The deep sea is a vast and essentially continuous environment with few obvious barriers to gene flow. How populations diverge and new species form in this remote ecosystem is poorly understood. Phylogeographical analyses have begun to provide some insight into evolutionary processes at bathyal depths (<3000 m), but much less is known about evolution in the more extensive abyssal regions (>3000 m). Here, we quantify geographical and bathymetric patterns of genetic variation (16S rRNA mitochondrial gene) in the protobranch bivalve Ledella ultima, which is one of the most abundant abyssal protobranchs in the Atlantic with a broad bathymetric and geographical distribution. We found virtually no genetic divergence within basins and only modest divergence among eight Atlantic basins. Levels of population divergence among basins were related to geographical distance and were greater in the South Atlantic than in the North Atlantic. Ocean-wide patterns of genetic variation indicate basin-wide divergence that exceeds what others have found for abyssal organisms, but considerably less than bathyal protobranchs across similar geographical scales. Populations on either side of the Mid-Atlantic Ridge in the North Atlantic differed, suggesting the Ridge might impede gene flow at abyssal depths. Our results indicate that abyssal populations might be quite large (cosmopolitan), exhibit only modest genetic structure and probably provide little potential for the formation of new species.
Keywords
ecological genetics; molecular evolution; molluscs; phylogeography
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S12828
- Other versions:
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NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref20798,
author = {Ron J. Etter and Elizabeth E. Boyle and Amanda Glazier and Robert M. Jennings and Ediane Dutra and Mike R. Chase},
title = {Phylogeography of a pan-Atlantic abyssal protobranch bivalve: implications for evolution in the Deep Atlantic.},
year = {2011},
keywords = {ecological genetics; molecular evolution; molluscs; phylogeography},
doi = {10.1111/j.1365-294X.2010.04978.x},
url = {http://www.ncbi.nlm.nih.gov/pubmed/21199034},
pmid = {21199034},
journal = {Molecular Ecology},
volume = {20},
number = {4},
pages = {829--843},
abstract = {The deep sea is a vast and essentially continuous environment with few obvious barriers to gene flow. How populations diverge and new species form in this remote ecosystem is poorly understood. Phylogeographical analyses have begun to provide some insight into evolutionary processes at bathyal depths (<3000 m), but much less is known about evolution in the more extensive abyssal regions (>3000 m). Here, we quantify geographical and bathymetric patterns of genetic variation (16S rRNA mitochondrial gene) in the protobranch bivalve Ledella ultima, which is one of the most abundant abyssal protobranchs in the Atlantic with a broad bathymetric and geographical distribution. We found virtually no genetic divergence within basins and only modest divergence among eight Atlantic basins. Levels of population divergence among basins were related to geographical distance and were greater in the South Atlantic than in the North Atlantic. Ocean-wide patterns of genetic variation indicate basin-wide divergence that exceeds what others have found for abyssal organisms, but considerably less than bathyal protobranchs across similar geographical scales. Populations on either side of the Mid-Atlantic Ridge in the North Atlantic differed, suggesting the Ridge might impede gene flow at abyssal depths. Our results indicate that abyssal populations might be quite large (cosmopolitan), exhibit only modest genetic structure and probably provide little potential for the formation of new species.}
}
- Show RIS reference
TY - JOUR
ID - 20798
AU - Etter,Ron J.
AU - Boyle,Elizabeth E.
AU - Glazier,Amanda
AU - Jennings,Robert M.
AU - Dutra,Ediane
AU - Chase,Mike R.
T1 - Phylogeography of a pan-Atlantic abyssal protobranch bivalve: implications for evolution in the Deep Atlantic.
PY - 2011
KW - ecological genetics; molecular evolution; molluscs; phylogeography
UR - http://www.ncbi.nlm.nih.gov/pubmed/21199034
N2 - The deep sea is a vast and essentially continuous environment with few obvious barriers to gene flow. How populations diverge and new species form in this remote ecosystem is poorly understood. Phylogeographical analyses have begun to provide some insight into evolutionary processes at bathyal depths (<3000 m), but much less is known about evolution in the more extensive abyssal regions (>3000 m). Here, we quantify geographical and bathymetric patterns of genetic variation (16S rRNA mitochondrial gene) in the protobranch bivalve Ledella ultima, which is one of the most abundant abyssal protobranchs in the Atlantic with a broad bathymetric and geographical distribution. We found virtually no genetic divergence within basins and only modest divergence among eight Atlantic basins. Levels of population divergence among basins were related to geographical distance and were greater in the South Atlantic than in the North Atlantic. Ocean-wide patterns of genetic variation indicate basin-wide divergence that exceeds what others have found for abyssal organisms, but considerably less than bathyal protobranchs across similar geographical scales. Populations on either side of the Mid-Atlantic Ridge in the North Atlantic differed, suggesting the Ridge might impede gene flow at abyssal depths. Our results indicate that abyssal populations might be quite large (cosmopolitan), exhibit only modest genetic structure and probably provide little potential for the formation of new species.
L3 - 10.1111/j.1365-294X.2010.04978.x
JF - Molecular Ecology
VL - 20
IS - 4
SP - 829
EP - 843
ER -