Results 41 to 50 of about 33,384 (228)

Heterozygosity-fitness correlations and inbreeding depression in two critically endangered mammals [PDF]

open access: yes, 2013
The relation among inbreeding, heterozygosity, and fitness has been studied primarily among outbred populations, and little is known about these phenomena in endangered populations.
Espeso, Gerardo   +7 more
core   +2 more sources

Selection responses of means and inbreeding depression for female fecundity in Drosophila melanogaster suggest contributions from intermediate-frequency alleles to quantitative trait variation [PDF]

open access: yes, 2007
The extent to which quantitative trait variability is caused by rare alleles maintained by mutation, versus intermediate-frequency alleles maintained by balancing selection, is an unsolved problem of evolutionary genetics.
Borthwick, Helen   +2 more
core   +1 more source

Inbreeding, inbreeding depression, and infidelity in a cooperatively breeding bird. [PDF]

open access: yesEvolution; international journal of organic evolution, 2018
Inbreeding depression plays a major role in shaping mating systems: in particular, inbreeding avoidance is often proposed as a mechanism explaining extra-pair reproduction in socially monogamous species. This suggestion relies on assumptions that are rarely comprehensively tested: that inbreeding depression is present, that higher kinship between ...
Hajduk, G   +5 more
openaire   +3 more sources

VIRAL EPIZOOTIC REVEALS INBREEDING DEPRESSION IN A HABITUALLY INBREEDING MAMMAL [PDF]

open access: yesEvolution, 2007
Inbreeding is typically detrimental to fitness. However, some animal populations are reported to inbreed without incurring inbreeding depression, ostensibly due to past "purging" of deleterious alleles. Challenging this is the position that purging can, at best, only adapt a population to a particular environment; novel selective regimes will always ...
Ross-Gillespie, A   +2 more
openaire   +3 more sources

When does female multiple mating evolve to adjust inbreeding? : Effects of inbreeding depression, direct costs, mating constraints, and polyandry as a threshold trait [PDF]

open access: yes, 2016
Ackowledgements: This work was funded by a European Research Council Starting Grant to JMR. All simulations were performed using the Maxwell computing cluster at the University of AberdeenPeer reviewedPublisher ...
Bocedi, Greta   +2 more
core   +2 more sources

Evidence for inbreeding depression in a species with limited opportunity for maternal effects [PDF]

open access: yes, 2015
It is often assumed that mating with close relatives reduces offspring fitness. In such cases, reduced offspring fitness may arise from inbreeding depression (i.e., genetic effects of elevated homozygosity) or from post-mating maternal investment.
Head, Megan L.   +2 more
core   +1 more source

The Consequences of Polyandry for Sibship Structures, Distributions of Relationships and Relatedness, and Potential for Inbreeding in a Wild Population [PDF]

open access: yes, 2017
We thank the Tsawout and Tseycum First Nations for access to Mandarte Island, Pirmin Nietlisbach, Lukas Keller, Greta Bocedi, Brad Duthie, and Matthew Wolak for helpful discussions, and the European Research Council, National Sciences and Engineering ...
Arcese, Peter   +2 more
core   +2 more sources

Can age‐related changes in parental care modulate inbreeding depression? A test using the burying beetle, Nicrophorus orbicollis

open access: yesEcology and Evolution, 2022
Parental care has been shown to reduce the magnitude of inbreeding depression in some species with facultative care. However, parents often vary in the quality or amount of care they provide to their offspring, and it is less clear whether this variation
Matthew Schrader   +6 more
doaj   +1 more source

Inbreeding depression in crambe1 [PDF]

open access: yesPesquisa Agropecuária Tropical, 2016
ABSTRACT Inbreeding depression in plants, caused by selfing or crossing among plants with a high degree of relatedness, is a genetic phenomenon that affects quantitative traits. This study aimed at verifying the occurrence of inbreeding depression in crambe progenies originated from selfing, in comparison with open pollination progenies.
Lara-fioreze, Ana Carolina Da Costa   +2 more
openaire   +4 more sources

Inbreeding depression due to recent and ancient inbreeding in Dutch Holstein–Friesian dairy cattle

open access: yesGenetics Selection Evolution, 2019
Background Inbreeding decreases animal performance (inbreeding depression), but not all inbreeding is expected to be equally harmful. Recent inbreeding is expected to be more harmful than ancient inbreeding, because selection decreases the frequency of ...
Harmen P. Doekes   +5 more
doaj   +1 more source

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