Natural selection favors a newly derived timeless allele in Drosophila melanogaster
Autor: | Clara Benna, Federica Sandrelli, Mirko Pegoraro, Ezio Rosato, Rodolfo Costa, Alessandro Selmin, Carlo Breda, Karen Monger, Andrea Daga, Mauro Agostino Zordan, Eran Tauber, Nicolò Osterwalder, Charalambos P. Kyriacou |
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Jazyk: | angličtina |
Rok vydání: | 2007 |
Předmět: |
Timeless
Photoperiod Molecular Sequence Data Life history theory Evolution Molecular Transformation Genetic Animals Drosophila Proteins Protein Isoforms Circadian rhythm Amino Acid Sequence Allele Selection Genetic Alleles Phylogeny Genetics Multidisciplinary Natural selection Polymorphism Genetic biology Base Sequence Geography Reproduction Temperature biology.organism_classification Circadian Rhythm Europe Drosophila melanogaster Haplotypes Mutation (genetic algorithm) Mutation Female Seasons Adaptation |
Popis: | Circadian and other natural clock-like endogenous rhythms may have evolved to anticipate regular temporal changes in the environment. We report that a mutation in the circadian clock gene timeless in Drosophila melanogaster has arisen and spread by natural selection relatively recently in Europe. We found that, when introduced into different genetic backgrounds, natural and artificial alleles of the timeless gene affect the incidence of diapause in response to changes in light and temperature. The natural mutant allele alters an important life history trait that may enhance the fly's adaptation to seasonal conditions. |
Databáze: | OpenAIRE |
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