Linked Life Data

19878499

Source:http://linkedlifedata.com/resource/pubmed/id/19878499

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2010-1-11
pubmed:abstractText
A combination of founder effects and local adaptation - the Monopolization hypothesis - has been proposed to reconcile the strong population differentiation of zooplankton dwelling in ponds and lakes and their high dispersal abilities. The role genetic drift plays in genetic differentiation of zooplankton is well documented, but the impact of natural selection has received less attention. Here, we compare differentiation in neutral genetic markers (F(ST)) and in quantitative traits (Q(ST)) in six natural populations of the rotifer Brachionus plicatilis to assess the importance of natural selection in explaining genetic differentiation of life-history traits. Five life-history traits were measured in four temperature x salinity combinations in common-garden experiments. Population differentiation for neutral genetic markers - 11 microsatellite loci - was very high (F(ST) = 0.482). Differentiation in life-history traits was higher in traits related to sexual reproduction than in those related to asexual reproduction. Q(ST) values for diapausing egg production (a trait related to sexual reproduction) were higher than their corresponding F(ST) in some pairs of populations. Our results indicate the importance of divergent natural selection in these populations and suggest local adaptation to the unpredictability of B. plicatilis habitats.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1420-9101
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2542-53
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Selection on life-history traits and genetic population divergence in rotifers.
pubmed:affiliation
Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, Valencia, Spain. sergi.campillo@uv.es
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't