Results 31 to 40 of about 9,479 (210)

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

Evolution, 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, O'Riain, M J, Keller, L F   +2 more
openaire   +4 more sources

Predictive Model and Software for Inbreeding-Purging Analysis of Pedigreed Populations

G3: Genes, Genomes, Genetics, 2016
The inbreeding depression of fitness traits can be a major threat to the survival of populations experiencing inbreeding. However, its accurate prediction requires taking into account the genetic purging induced by inbreeding, which can be achieved using
Aurora García-Dorado, Jinliang Wang, Eugenio López-Cortegano   +2 more
doaj   +1 more source

Inbreeding depression across the genome of Dutch Holstein Friesian dairy cattle

Genetics Selection Evolution, 2020
Background Inbreeding depression refers to the decrease in mean performance due to inbreeding. Inbreeding depression is caused by an increase in homozygosity and reduced expression of (on average) favourable dominance effects.
Harmen P. Doekes, Piter Bijma, Roel F. Veerkamp, Gerben de Jong, Yvonne C. J. Wientjes, Jack J. Windig   +5 more
doaj   +1 more source

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

Evolution; 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, Cockburn, A, Margraf, N, Osmond, H, Walling, C, Kruuk, L   +5 more
openaire   +4 more sources

The Genetic Interpretation of Inbreeding Depression and Outbreeding Depression [PDF]

Evolution, 1991
Inbreeding with close relatives and outbreeding with members of distant populations can both result in deleterious shifts in the means of fitness-related characters, most likely for very different reasons. Such processes often occur simultaneously and have important implications for the evolution of mating systems, dispersal strategies, and speciation.
openaire   +2 more sources

INBREEDING AND OUTBREEDING DEPRESSION IN CAENORHABDITIS NEMATODES [PDF]

Evolution, 2007
The nematode Caenorhabditis elegans reproduces primarily by self-fertilization of hermaphrodites, yet males are present at low frequencies in natural populations (androdioecy). The ancestral state of C. elegans was probably gonochorism (separate males and females), as in its relative C. remanei. Males may be maintained in C.
Dolgin, Elie S., Charlesworth, Brian, Baird, Scott Everet, Cutter, Asher   +3 more
openaire   +4 more sources

Multiple life-stage inbreeding depression impacts demography and extinction risk in an extinct-in-the-wild species

Scientific Reports, 2021
Inbreeding can depress individuals’ fitness traits and reduce population viability. However, studies that directly translate inbreeding depression on fitness traits into consequences for population viability, and further, into consequences for management
A. E. Trask, G. M. Ferrie, J. Wang, S. Newland, S. Canessa, A. Moehrenschlager, M. Laut, L. Barnhart Duenas, J. G. Ewen   +8 more
doaj   +1 more source

Seasonal variation in wind speed and oceanic salt spray favors delayed reproduction in coastal yellow monkeyflowers

American Journal of Botany, EarlyView.
Abstract Premise The optimal timing of reproduction depends on the relative risk and benefit of continued growth. These risks and benefits depend on the local environment, which varies seasonally. While temperature and water availability are well‐studied selective agents on reproductive timing, less is known about other seasonally variable factors ...
Katherine Toll, Chloe Crockett, Lauren Tocci, David B. Lowry   +3 more
wiley   +1 more source

The genetic basis of inbreeding depression

Genetical Research, 1999
Data on the effects of inbreeding on fitness components are reviewed in the light of population genetic models of the possible genetic causes of inbreeding depression. Deleterious mutations probably play a major role in causing inbreeding depression.
B, Charlesworth, D, Charlesworth
openaire   +2 more sources

Measuring the effect of environmental stress on inbreeding depression alone obscures the relative importance of inbreeding–stress interactions on overall fitness in Callosobruchus maculatus

Evolutionary Applications, 2020
Environmental stress can have a profound effect on inbreeding depression. Quantifying this effect is of particular importance in threatened populations, which are often simultaneously subject to both inbreeding and environmental stress.
Amy L. Springer, Frank J. Messina, Zachariah Gompert   +2 more
doaj   +1 more source