Search results for "PHENOTYPIC PLASTICITY"
showing 3 items of 93 documents
Strategic adjustments in sperm production within and between two island populations of house mice
2012
Sperm production is physiologically costly. Consequently, males are expected to be prudent in their sperm production, and tailor their expenditure according to prevailing social conditions. Differences in sperm production have been found across island populations of house mice that differ in the level of selection from sperm competition. Here, we determined the extent to which these differences represent phenotypic plasticity and/or population divergence in sperm production. We sourced individuals from two populations at the extreme levels of sperm competition, and raised them under common-garden conditions while manipulating the social experience of developing males. Males from the high-sp…
Unveiling adaptive mechanisms though experimental evolution: the role of duplicated genes and phenotypic plasticity in yeast, and the genetic variabi…
2021
Los seres vivos se enfrentan a condiciones ambientales cambiantes y habitualmente estresantes, agravadas por el cambio climático, que ponen a prueba su capacidad de supervivencia. El cambio en la composición genética de las poblaciones reside en las mutaciones, que son la fuente para la evolución y la adaptación a los cambios. La diversidad genética intrapoblacional está regulada por dos grandes fuerzas evolutivas que cambian la composición genética permitiendo así el acceso a nuevos fenotipos: la deriva genética y la selección natural. Por un lado, la deriva genética fija mutaciones en la población de manera aleatoria e independiente del efecto que suponga dicha mutación para la población.…
Data from: Coping with the climate: cuticular hydrocarbon acclimation of ants under constant and fluctuating conditions
2018
Terrestrial arthropods achieve waterproofing by a layer of cuticular hydrocarbons (CHCs). At the same time, CHCs also serve as communication signals. To maintain waterproofing under different climate conditions, insects adjust the chemical composition of their CHC layer, but this may affect the communication via CHC. The detailed acclimatory changes of CHCs and how these influence their physical properties are still unknown. Here, we studied acclimation in two closely related ant species with distinct CHC profiles, Myrmica rubra and Myrmica ruginodis, in response to constant or fluctuating temperature and humidity regimes. We measured how acclimation affected CHC composition and viscosity, …