Results 11 to 20 of about 121,977 (298)

Trends in genetic diversity and the effect of inbreeding in American Angus cattle under genomic selection

open access: yesGenetics Selection Evolution, 2021
Background While the adoption of genomic evaluations in livestock has increased genetic gain rates, its effects on genetic diversity and accumulation of inbreeding have raised concerns in cattle populations.
Emmanuel A. Lozada-Soto   +5 more
doaj   +1 more source

Genetic inbreeding depression load for morphological traits and defects in the Pura Raza Española horse

open access: yesGenetics Selection Evolution, 2020
Background Inbreeding is caused by mating between related individuals and is associated with reduced fitness and performance (inbreeding depression). Several studies have detected heterogeneity in inbreeding depression among founder individuals. Recently,
Julia Poyato-Bonilla   +6 more
doaj   +1 more source

Temporal and region‐specific variations in genome‐wide inbreeding effects on female size and reproduction traits of rainbow trout

open access: yesEvolutionary Applications, 2022
Recent studies have shown that current levels of inbreeding, estimated by runs of homozygosity (ROH), are moderate to high in farmed rainbow trout lines.
Katy Paul   +2 more
doaj   +1 more source

Inbreeding Depression and Purging for Meat Performance Traits in German Sheep Breeds

open access: yesAnimals, 2023
This study provides estimates on genetic parameters, inbreeding depression and purging for meat performance measures from 25 German sheep breeds. All German meat, merino sheep breeds and breeds of other breeding directions with a sufficient number of ...
Cathrin Justinski   +2 more
doaj   +1 more source

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

Grid search approach to discriminate between old and recent inbreeding using phenotypic, pedigree and genomic information

open access: yesBMC Genomics, 2021
Background Although inbreeding caused by the mating of animals related through a recent common ancestor is expected to have more harmful effects on phenotypes than ancient inbreeding (old inbreeding), estimating these effects requires a clear definition ...
Pattarapol Sumreddee   +5 more
doaj   +1 more source

Exploring the relationship between tychoparthenogenesis and inbreeding depression in the Desert Locust, Schistocerca gregaria [PDF]

open access: yes, 2017
Tychoparthenogenesis, a form of asexual reproduction in which a small proportion of unfertilized eggs can hatch spontaneously, could be an intermediate evolutionary link in the transition from sexual to parthenogenetic reproduction.
Blondin, Laurence   +4 more
core   +1 more source

On the expected relationship between inbreeding, fitness, and extinction

open access: yesGenetics Selection Evolution, 2006
We assessed the expected relationship between the level and the cost of inbreeding, measured either in terms of fitness, inbreeding depression or probability of extinction. First, we show that the assumption of frequent, slightly deleterious mutations do
Couvet Denis, Theodorou Konstantinos
doaj   +1 more source

Genetic diversity and inbreeding in the Greek Skyros horse [PDF]

open access: yes, 2008
Inbreeding and heterozygosity levels were calculated in a population of 77 horses of the endangered Skyros breed that had been raised since 1988 at an experimental farm. Twenty one horses were inbred with average inbreeding coefficient of 0.11 (+/-0.02).
Avdi, M., Banos, G.
core   +1 more source

ON THE MEASUREMENT OF INBREEDING DEPRESSION [PDF]

open access: yesEvolution, 1994
Theory has shown that the fitness consequences of inbreeding can play a major role in the evolution of sex and reproduction (Maynard Smith 1977; Lloyd 1979; Shields 1982; Kondrashov 1985; Lande and Schemske 1985; Holsinger 1988; Charlesworth et al. 1991; Uyenoyama and Waller 1991 a and references therein).
Mark O, Johnston, Daniel J, Schoen
openaire   +2 more sources

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