@ARTICLE{TreeBASE2Ref23668,
author = {Gwylim Seaton Blackburn and Wayne Paul Maddison},
title = {Stark sexual display divergence among jumping spider populations in the face of gene flow},
year = {2014},
keywords = {divergence-with-gene-flow, sexual display, salticid},
doi = {},
url = {http://},
pmid = {},
journal = {Molecular Ecology},
volume = {},
number = {},
pages = {},
abstract = {Gene flow can inhibit evolutionary divergence by eroding genetic differences between populations. A current aim in speciation research is to identify conditions in which selection overcomes this process. We focused on a state of limited differentiation, asking if selection enables divergence-with-gene-flow in a set of Habronattus americanus jumping spider populations that exhibit three distinct male sexual display morphs. We found that each population is at high frequency or fixed for a single morph. These strong phenotypic differences contrast with low divergence at 210 AFLP markers, suggesting selection has driven or maintains morph divergence. Coinciding patterns of isolation-by-distance and ?isolation-by-phenotype? (i.e., increased genetic divergence among phenotypically contrasting populations) across the study area support several alternative demographic hypotheses for display divergence, each of which entails gene flow. Display-associated structure appears broadly distributed across the genome and the markers producing this pattern do not stand out from background levels of differentiation. Overall, the results suggest selection can promote stark sexual display divergence in the face of gene flow among closely related populations.}
}
Citation for Study 16381
Citation title:
"Stark sexual display divergence among jumping spider populations in the face of gene flow".
Study name:
"Stark sexual display divergence among jumping spider populations in the face of gene flow".
This study is part of submission 16381
(Status: Published).
Citation
Blackburn G.S., & Maddison W.P. 2014. Stark sexual display divergence among jumping spider populations in the face of gene flow. Molecular Ecology, .
Authors
-
Blackburn G.S.
-
Maddison W.P.
Abstract
Gene flow can inhibit evolutionary divergence by eroding genetic differences between populations. A current aim in speciation research is to identify conditions in which selection overcomes this process. We focused on a state of limited differentiation, asking if selection enables divergence-with-gene-flow in a set of Habronattus americanus jumping spider populations that exhibit three distinct male sexual display morphs. We found that each population is at high frequency or fixed for a single morph. These strong phenotypic differences contrast with low divergence at 210 AFLP markers, suggesting selection has driven or maintains morph divergence. Coinciding patterns of isolation-by-distance and ?isolation-by-phenotype? (i.e., increased genetic divergence among phenotypically contrasting populations) across the study area support several alternative demographic hypotheses for display divergence, each of which entails gene flow. Display-associated structure appears broadly distributed across the genome and the markers producing this pattern do not stand out from background levels of differentiation. Overall, the results suggest selection can promote stark sexual display divergence in the face of gene flow among closely related populations.
Keywords
divergence-with-gene-flow, sexual display, salticid
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S16381
- Other versions:
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref23668,
author = {Gwylim Seaton Blackburn and Wayne Paul Maddison},
title = {Stark sexual display divergence among jumping spider populations in the face of gene flow},
year = {2014},
keywords = {divergence-with-gene-flow, sexual display, salticid},
doi = {},
url = {http://},
pmid = {},
journal = {Molecular Ecology},
volume = {},
number = {},
pages = {},
abstract = {Gene flow can inhibit evolutionary divergence by eroding genetic differences between populations. A current aim in speciation research is to identify conditions in which selection overcomes this process. We focused on a state of limited differentiation, asking if selection enables divergence-with-gene-flow in a set of Habronattus americanus jumping spider populations that exhibit three distinct male sexual display morphs. We found that each population is at high frequency or fixed for a single morph. These strong phenotypic differences contrast with low divergence at 210 AFLP markers, suggesting selection has driven or maintains morph divergence. Coinciding patterns of isolation-by-distance and ?isolation-by-phenotype? (i.e., increased genetic divergence among phenotypically contrasting populations) across the study area support several alternative demographic hypotheses for display divergence, each of which entails gene flow. Display-associated structure appears broadly distributed across the genome and the markers producing this pattern do not stand out from background levels of differentiation. Overall, the results suggest selection can promote stark sexual display divergence in the face of gene flow among closely related populations.}
}
- Show RIS reference
TY - JOUR
ID - 23668
AU - Blackburn,Gwylim Seaton
AU - Maddison,Wayne Paul
T1 - Stark sexual display divergence among jumping spider populations in the face of gene flow
PY - 2014
KW - divergence-with-gene-flow
KW - sexual display
KW - salticid
UR - http://dx.doi.org/
N2 - Gene flow can inhibit evolutionary divergence by eroding genetic differences between populations. A current aim in speciation research is to identify conditions in which selection overcomes this process. We focused on a state of limited differentiation, asking if selection enables divergence-with-gene-flow in a set of Habronattus americanus jumping spider populations that exhibit three distinct male sexual display morphs. We found that each population is at high frequency or fixed for a single morph. These strong phenotypic differences contrast with low divergence at 210 AFLP markers, suggesting selection has driven or maintains morph divergence. Coinciding patterns of isolation-by-distance and ?isolation-by-phenotype? (i.e., increased genetic divergence among phenotypically contrasting populations) across the study area support several alternative demographic hypotheses for display divergence, each of which entails gene flow. Display-associated structure appears broadly distributed across the genome and the markers producing this pattern do not stand out from background levels of differentiation. Overall, the results suggest selection can promote stark sexual display divergence in the face of gene flow among closely related populations.
L3 -
JF - Molecular Ecology
VL -
IS -
ER -