Document Detail

Profiling the repertoire of phenotypes influenced by environmental cues that occur during asexual reproduction.
MedLine Citation:
PMID:  19635846     Owner:  NLM     Status:  MEDLINE    
The aphid Acyrthosiphon pisum population is composed of different morphs, such as winged and wingless parthenogens, males, and sexual females. The combined effect of reduced photoperiodicity and cold in fall triggers the apparition of sexual morphs. In contrast they reproduce asexually in spring and summer. In our current study, we provide evidence that clonal individuals display phenotypic variability within asexual morph categories. We describe that clones sharing the same morphological features, which arose from the same founder mother, constitute a repertoire of variants with distinct behavioral and physiological traits. Our results suggest that the prevailing environmental conditions influence the recruitment of adaptive phenotypes from a cohort of clonal individuals exhibiting considerable molecular diversity. However, we observed that the variability might be reduced or enhanced by external factors, but is never abolished in accordance with a model of stochastically produced phenotypes. This overall mechanism allows the renewal of colonies from a few adapted individuals that survive drastic episodic changes in a fluctuating environment.
Aviv Dombrovsky; Laury Arthaud; Terence N Ledger; Sophie Tares; Alain Robichon
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-07-27
Journal Detail:
Title:  Genome research     Volume:  19     ISSN:  1549-5469     ISO Abbreviation:  Genome Res.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-03     Completed Date:  2010-01-15     Revised Date:  2013-06-02    
Medline Journal Info:
Nlm Unique ID:  9518021     Medline TA:  Genome Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2052-63     Citation Subset:  IM    
INRA/CNRS/UNSA University Nice Sophia Antipolis, Sophia Antipolis 06903 BP 167, France.
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MeSH Terms
Adaptation, Physiological / genetics,  physiology*
Aphids / genetics,  physiology*
CpG Islands / genetics
Cytidine / analogs & derivatives,  pharmacology
DNA Methylation / drug effects
Electrophoresis, Gel, Two-Dimensional
Epigenesis, Genetic
Founder Effect
Genetic Variation
Genome, Insect / genetics
Insect Proteins / genetics,  metabolism
Methyltransferases / antagonists & inhibitors,  metabolism
Parthenogenesis / genetics,  physiology
Sexual Behavior, Animal / drug effects,  physiology*
Reg. No./Substance:
0/Insect Proteins; 0/cuticle proteins, insects; 3690-10-6/pyrimidin-2-one beta-ribofuranoside; 65-46-3/Cytidine; EC 2.1.1.-/Methyltransferases

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

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