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Molecular evolution and quantitative variation for chemosensory behaviour in the nematode genus Caenorhabditis by R. Jovelin; B. C. Ajie; P. C. Phillips is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract __Caenorhabditis elegans__ is a model organism in biology, yet despite the tremendous information generated from genetic, genomic and functional analyses, __C. elegans__ has rarely been used to address questions in ecological genetics. Here, we analyse genetic variation for chemosensory behaviour, an ecologically important trait that is also genetically well characterized, at both the phenotypic and molecular levels within three species of the genus __Caenorhabditis__. We show that the G‐protein ODR‐3 plays an important role in chemosensory avoidance behaviour and identify orthologues of __odr‐3__ in __C. briggsae__ and __C. remanei__. Both quantitative genetic analysis of chemosensory behaviour and molecular population genetic analysis of __odr‐3__ show that there is little genetic variation among a worldwide collection of isolates of the primarily selfing __C. elegans__, whereas there is substantially more variation within a single population of the outcrossing __C. remanei__. Although there are a large number of substitutions at silent sites within __odr‐3__ among the three species, molecular evolution at the protein level is extremely conserved, suggesting that odr‐

Who reads Molecular evolution and quantitative variation for chemosensory behaviour in the nematode genus Caenorhabditis?

Author

R. Jovelin; B. C. Ajie; P. C. Phillips

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; Research Square (ISSN 0962-1083)

Published

2003

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)