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2015 ; 31
(5
): 224-31
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The laboratory domestication of Caenorhabditis elegans
#MMPMID25804345
Sterken MG
; Snoek LB
; Kammenga JE
; Andersen EC
Trends Genet
2015[May]; 31
(5
): 224-31
PMID25804345
show ga
Model organisms are of great importance to our understanding of basic biology and
to making advances in biomedical research. However, the influence of laboratory
cultivation on these organisms is underappreciated, and especially how that
environment can affect research outcomes. Recent experiments led to insights into
how the widely used laboratory reference strain of the nematode Caenorhabditis
elegans compares with natural strains. Here we describe potential selective
pressures that led to the fixation of laboratory-derived alleles for the genes
npr-1, glb-5, and nath-10. These alleles influence a large number of traits,
resulting in behaviors that affect experimental interpretations. Furthermore,
strong phenotypic effects caused by these laboratory-derived alleles hinder the
discovery of natural alleles. We highlight strategies to reduce the influence of
laboratory-derived alleles and to harness the full power of C. elegans.