Browsing by Author "Goy, Christine"
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- Reproductive assurance drives transitions to self-fertilization in experimental Caenorhabditis elegansPublication . Theologidis, Ioannis; Chelo, Ivo M; Goy, Christine; Teotónio, HenriqueEvolutionary transitions from outcrossing between individuals to selfing are partly responsible for the great diversity of animal and plant reproduction systems. The hypothesis of 'reproductive assurance' suggests that transitions to selfing occur because selfers that are able to reproduce on their own ensure the persistence of populations in environments where mates or pollination agents are unavailable. Here we test this hypothesis by performing experimental evolution in Caenorhabditis elegans.
- The role of hermaphrodites in the experimental evolution of increased outcrossing rates in Caenorhabditis elegansPublication . Carvalho, Sara; Chelo, Ivo M; Goy, Christine; Teotónio, HenriqueWhy most organisms reproduce via outcrossing rather than selfing is a central question in evolutionary biology. It has long ago been suggested that outcrossing is favoured when it facilitates adaptation to novel environments. We have previously shown that the experimental evolution of increased outcrossing rates in populations of the male-hermaphrodite nematode Caenorhabditis elegans were correlated with the experimental evolution of increased male fitness. However, it is unknown whether outcrossing led to adaptation, and if so, which fitness components can explain the observed increase in outcrossing rates.
- The role of hermaphrodites in the experimental evolution of increased outcrossing rates in Caenorhabditis elegansPublication . Carvalho, Sara; Chelo, Ivo M; Goy, Christine; Teotónio, HenriqueWhy most organisms reproduce via outcrossing rather than selfing is a central question in evolutionary biology. It has long ago been suggested that outcrossing is favoured when it facilitates adaptation to novel environments. We have previously shown that the experimental evolution of increased outcrossing rates in populations of the male-hermaphrodite nematode Caenorhabditis elegans were correlated with the experimental evolution of increased male fitness. However, it is unknown whether outcrossing led to adaptation, and if so, which fitness components can explain the observed increase in outcrossing rates.