Tag : Natural selection

Biology

Selective sweeps on novel and introgressed variation shape mimicry loci in a butterfly adaptive radiation

Newsemia
by Markus Moest, Steven M. Van Belleghem, Jennifer E. James, Camilo Salazar, Simon H. Martin, Sarah L. Barker, Gilson R. P. Moreira, Claire Mérot, Mathieu...
Biology

The role of selection and evolution in changing parturition date in a red deer population

Newsemia
by Timothée Bonnet, Michael B. Morrissey, Alison Morris, Sean Morris, Tim H. Clutton-Brock, Josephine M. Pemberton, Loeske E. B. Kruuk Changing environmental conditions cause changes...
Biology

Inferring the distribution of fitness effects of spontaneous mutations in <i>Chlamydomonas reinhardtii</i>

Newsemia
by Katharina B. Böndel, Susanne A. Kraemer, Toby Samuels, Deirdre McClean, Josianne Lachapelle, Rob W. Ness, Nick Colegrave, Peter D. Keightley Spontaneous mutations are the...
Biology

Simulations reveal challenges to artificial community selection and possible strategies for success

Newsemia
by Li Xie, Alex E. Yuan, Wenying Shou Multispecies microbial communities often display “community functions” arising from interactions of member species. Interactions are often difficult...
Biology

Genotype network intersections promote evolutionary innovation

Newsemia
by Devin P. Bendixsen, James Collet, Bjørn Østman, Eric J. Hayden Evolutionary innovations are qualitatively novel traits that emerge through evolution and increase biodiversity. The...
Biology

Genome-wide sexually antagonistic variants reveal long-standing constraints on sexual dimorphism in fruit flies

Newsemia
by Filip Ruzicka, Mark S. Hill, Tanya M. Pennell, Ilona Flis, Fiona C. Ingleby, Richard Mott, Kevin Fowler, Edward H. Morrow, Max Reuter The evolution...
Biology

Evidence that alternative transcriptional initiation is largely nonadaptive

Newsemia
by Chuan Xu, Joong-Ki Park, Jianzhi Zhang Alternative transcriptional initiation (ATI) refers to the frequent observation that one gene has multiple transcription start sites (TSSs)....
Biology

Dominance reversals and the maintenance of genetic variation for fitness

Newsemia
by Tim Connallon, Stephen F. Chenoweth Antagonistic selection between different fitness components (e.g., survival versus fertility) or different types of individuals in a population (e.g.,...
Biology

Environment-dependent pleiotropic effects of mutations on the maximum growth rate <i>r</i> and carrying capacity <i>K</i> of population growth

Newsemia
by Xinzhu Wei, Jianzhi Zhang Maximum growth rate per individual (r) and carrying capacity (K) are key life-history traits that together characterize the density-dependent population...
Biology

Resistance gained, resistance lost: An explanation for host–parasite coexistence

Newsemia
by Britt Koskella Host populations are under continual selection by parasites due to reduced fitness of infected individuals relative to uninfected individuals. This should select...
Biology

Destabilized adaptive influenza variants critical for innate immune system escape are potentiated by host chaperones

Newsemia
by Angela M. Phillips, Anna I. Ponomarenko, Kenny Chen, Orr Ashenberg, Jiayuan Miao, Sean M. McHugh, Vincent L. Butty, Charles A. Whittaker, Christopher L. Moore,...

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