The competitive environment caused changes in the trait correlation structure and surprisingly reduced phenotypic integration, which helped explain some of the observed selection patterns. Despite this overall shift in the trait correlation matrix, genotypes with delayed flowering had lower SLA (thicker, ...
Here, I report on a field study of the common morning glory Ipomoea purpurea, which provided measurements of natural selection on both initial and maternal seed size. For initial seed size, selection favored larger seeds, but a greenhouse study indicated no genetic variation for this trait. For...
Theory shows how sexual selection can exaggerate male traits beyond naturally selected optima and also how natural selection can ultimately halt trait elaboration. Empirical evidence supports this theory, but to our knowledge, there have been no experimental evolution studies directly testing this logic,...
(A) Directional selection; (B) stabilizing selection; (C) disruptive selection. See text for details. Stabilizing selection is known to be the most prevalent type of natural selection; it favors the intermediate (average) phenotype of the trait, and in doing so it removes the extreme ...
We used extensive data from a long-term study of great tits ( Parus major ) in the United Kingdom and Netherlands to better understand how genetic signatures of selection translate into variation in fitness and phenotypes. We found that genomic regions under differential selection contained candidate...
Natural Selection, Childrearing, and the Ethics of Marriage (and Divorce): Building a Case for the Neuroenhancement of Human RelationshipsSPECIAL ISSUE Open access Published: 05 July 2012 Volume 25, pages 561–587, (2012) Cite this article ...
The degree and the duration of sexual colour differences vary greatly across lineages, and we do not detect phylogenetic signal in the distribution of this trait, therefore frogs provide an opportunity to investigate the roles of natural and sexual selection across multiple independent derivations of ...
Genome-wide scans for signatures of selection in Mangalarga Marchador horses using high-throughput SNP genotyping Wellington B. Santos Gustavo P. Schettini Rogério A. Curi BMC Genomics(2021) Recent effective population size in Eastern European plain Russians correlates with the key historical events ...
In goat breeds, the domestication followed by artificial selection for economically important traits have shaped genetic variation within populations, leading to the fixation of specific alleles for specific traits. This led to the formation and evolution of many different breeds specialised and raised fo...
Following Ewens' interpretation about Fisher's fundamental theorem of natural selection, the matrix game model for diploid populations undergoing non-overlapping, discrete generations is investigated. The total genetic variance is decomposed and it is shown that the partial change in the mean fitness, ...