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Just How Much is the G-matrix Actually Constraining Adaptation?

Eroukhmanoff, Fabrice LU (2009) In Evolutionary Biology 36(3). p.323-326
Abstract
The genetic variance-covariance matrix (G) has long been considered to summarize the genetic constraints biasing evolution in its early stages, although in some instances, G can enhance divergence and facilitate adaptation. However, the effects of G on the response to selection might be of less importance than previously thought. In addition, it has been suggested that selection itself, under certain conditions, might rapidly alter the genetic covariance structure. If selection can indeed affect the stability of G to facilitate evolution, the overall structure of G might not be as important to consider as the past selective conditions that G was subject to. Thus, more empirical work is needed on the stability of G in the early stages of... (More)
The genetic variance-covariance matrix (G) has long been considered to summarize the genetic constraints biasing evolution in its early stages, although in some instances, G can enhance divergence and facilitate adaptation. However, the effects of G on the response to selection might be of less importance than previously thought. In addition, it has been suggested that selection itself, under certain conditions, might rapidly alter the genetic covariance structure. If selection can indeed affect the stability of G to facilitate evolution, the overall structure of G might not be as important to consider as the past selective conditions that G was subject to. Thus, more empirical work is needed on the stability of G in the early stages of divergence before one can really assess to what extent G constrains evolution. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Selection, Quantitative genetics, G-matrix, Adaptation, Constraints
in
Evolutionary Biology
volume
36
issue
3
pages
323 - 326
publisher
Springer
external identifiers
  • wos:000269000700006
  • scopus:76349121052
ISSN
0071-3260
DOI
10.1007/s11692-009-9062-y
language
English
LU publication?
yes
id
db51920a-7578-4471-be78-d519381570be (old id 1477328)
date added to LUP
2009-09-28 15:18:52
date last changed
2017-03-19 03:42:00
@article{db51920a-7578-4471-be78-d519381570be,
  abstract     = {The genetic variance-covariance matrix (G) has long been considered to summarize the genetic constraints biasing evolution in its early stages, although in some instances, G can enhance divergence and facilitate adaptation. However, the effects of G on the response to selection might be of less importance than previously thought. In addition, it has been suggested that selection itself, under certain conditions, might rapidly alter the genetic covariance structure. If selection can indeed affect the stability of G to facilitate evolution, the overall structure of G might not be as important to consider as the past selective conditions that G was subject to. Thus, more empirical work is needed on the stability of G in the early stages of divergence before one can really assess to what extent G constrains evolution.},
  author       = {Eroukhmanoff, Fabrice},
  issn         = {0071-3260},
  keyword      = {Selection,Quantitative genetics,G-matrix,Adaptation,Constraints},
  language     = {eng},
  number       = {3},
  pages        = {323--326},
  publisher    = {Springer},
  series       = {Evolutionary Biology},
  title        = {Just How Much is the G-matrix Actually Constraining Adaptation?},
  url          = {http://dx.doi.org/10.1007/s11692-009-9062-y},
  volume       = {36},
  year         = {2009},
}