Search results for "past selection"

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Inbreeding reveals mode of past selection on male reproductive characters in Drosophila melanogaster

2013

Directional dominance is a prerequisite of inbreeding depression. Directionality arises when selection drives alleles that increase fitness to fixation and eliminates dominant deleterious alleles, while deleterious recessives are hidden from it and maintained at low frequencies. Traits under directional selection (i.e., fitness traits) are expected to show directional dominance and therefore an increased susceptibility to inbreeding depression. In contrast, traits under stabilizing selection or weakly linked to fitness are predicted to exhibit little-to-no inbreeding depression. Here, we quantify the extent of inbreeding depression in a range of male reproductive characters and then infer t…

0106 biological sciencesAttractivenessPopulation fragmentationOutbreeding depressionGenetic purgingBiology010603 evolutionary biology01 natural sciencessperm competition2309 Nature and Landscape Conservation03 medical and health sciences10127 Institute of Evolutionary Biology and Environmental Studiespast selectionInbreeding depressionsperm lengthStabilizing selectionSperm competitionEcology Evolution Behavior and Systematics030304 developmental biologyNature and Landscape ConservationOriginal ResearchGenetics0303 health sciencesEcologyDirectional selectionbanaanikärpänenvetovoimaisuusspermakilpailuSisäsiitos1105 Ecology Evolution Behavior and SystematicsDrosophila melanogasterta1181570 Life sciences; biology590 Animals (Zoology)siittiön pituusInbreeding2303 Ecologyinbreeding depression
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Data from: Inbreeding reveals mode of past selection on male reproductive characters in Drosophila melanogaster

2013

Directional dominance is a prerequisite of inbreeding depression. Directionality arises when selection drives alleles that increase fitness to fixation and eliminates dominant deleterious alleles, while deleterious recessives are hidden from it and maintained at low frequencies. Traits under directional selection (i.e., fitness traits) are expected to show directional dominance and therefore an increased susceptibility to inbreeding depression. In contrast, traits under stabilizing selection or weakly linked to fitness are predicted to exhibit little-to-no inbreeding depression. Here, we quantify the extent of inbreeding depression in a range of male reproductive characters and then infer t…

medicine and health carepast selectionattractivenessMedicinesperm lengthLife sciences
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