Document Detail


Kin-biased distribution in brown trout: an effect of redd location or kin recognition?
MedLine Citation:
PMID:  14666124     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A wide range of animals have been reported to show kin-biased behaviours, such as reduced aggressiveness and increased food sharing among relatives. However, less is known about whether wild animals also associate with relatives under natural conditions, which is a prerequisite to facilitate kin-biased behaviours and hence kin selection. We tested, by means of microsatellite polymorphism, correlations between pair-wise relatedness and pair-wise metric distance in wild brown trout (Salmo trutta L.) under natural conditions in two streams. Our data show that young-of-the-year as well as older trout found close together also had a higher genetic relatedness in one of the two streams, whereas no relationship was found in the other stream. Very few half and full siblings were found in the second stream and under these conditions it is unlikely that kin-biased behaviours will receive positive selection. We discuss the underlying mechanisms for the observed structure and we specifically address the issue of whether the grouping of related individuals could reflect dispersal from the same spawning redds, or if it reflects active association with relatives, possibly conferring kin-selected advantages.
Authors:
J Carlsson; J E L Carlsson; K H Olsén; M M Hansen; T Eriksson; J Nilsson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Heredity     Volume:  92     ISSN:  0018-067X     ISO Abbreviation:  Heredity     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-01-27     Completed Date:  2004-09-07     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  0373007     Medline TA:  Heredity     Country:  England    
Other Details:
Languages:  eng     Pagination:  53-60     Citation Subset:  IM    
Affiliation:
Danish Institute for Fisheries Research, Department of Inland Fisheries, Vejlsøvej 39, DK-8600 Silkeborg, Denmark. jc@vims.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Behavior, Animal / physiology*
DNA / analysis
Denmark
Gene Frequency
Genetics, Population*
Male
Microsatellite Repeats / genetics
Population Dynamics
Scotland
Selection, Genetic*
Spatial Behavior / physiology*
Trout / genetics*
Chemical
Reg. No./Substance:
9007-49-2/DNA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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