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| Fneich, Sara; Theron, Andre; Cosseau, Celine; Rognon, Anne; Aliaga, Benoit; Buard, Jerome; Duval, David; Arancibia, Nathalie; Boissier, Jerome; Roquis, David; Mitta, Guillaume; Grunau, Christoph. |
| Background: Adaptive evolution is not possible without the generation of phenotypic variants. The origin of these variations has been a central topic in evolutionary biology. Up to now, it was commonly accepted that standing genetic variation is the only cause of phenotypic variants. However, epigenetic information is emerging as a complementary source of heritable phenotypic variation that contributes to evolution. The relative importance of genetics and epigenetics in generating heritable phenotypic variation is nevertheless a matter of debate. Results: We used a host-parasite system to address this question. The human blood fluke Schistosoma mansoni can adapt rapidly to new intermediate snail hosts. The interaction between parasite and mollusk is... |
| Tipo: Text |
Palavras-chave: Epigenetics; Adaptive evolution; Compatibility polymorphism; Schistosoma mansoni. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00615/72708/71730.pdf |
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| Yu,Hanying; Li,Lin. |
| The cerato-platanin family consists of proteins that can induce immune responses, cause necrosis, change chemotaxis and locomotion and may be related to the growth and development of various fungi. In this work, we analyzed the phylogenetic relationships among genes encoding members of the cerato-platanin family and computed the divergence times of the genes and corresponding fungi. The results showed that cerato-platanin-encoding genes could be classified into 10 groups but did not cluster according to fungal classes or their functions. The genes transferred horizontally and showed duplication. Molecular dating and adaptive evolution analyses indicated that the cerato-platanin gene originated with the appearance of saprophytes and that the gene was under... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adaptive evolution; Cerato-platanin gene; Phylogeny; Relaxed clock. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000300015 |
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