Results 21 to 30 of about 9,479 (210)
On the expected relationship between inbreeding, fitness, and extinction
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
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The environmental dependence of inbreeding depression in a wild bird population. [PDF]
Inbreeding depression occurs when the offspring produced as a result of matings between relatives show reduced fitness, and is generally understood as a consequence of the elevated expression of deleterious recessive alleles.
Marta Szulkin, Ben C Sheldon
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A comparison of inbreeding depression in tropical and widespread Drosophila species. [PDF]
The evolutionary history of widespread and specialized species is likely to cause a different genetic architecture of key ecological traits in the two species groups. This may affect how these two groups respond to inbreeding.
Jesper S Bechsgaard +5 more
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THE COST OF FLUCTUATING INBREEDING DEPRESSION [PDF]
We present a phenotypic model for the evolution of self-fertilization in an infinite population of annual hermaphrodites for the case in which fitness and inbreeding depression vary among generations (e.g., due to fluctuations in the environment from year to year).
Pierre-Olivier, Cheptou +1 more
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Inbreeding depression in red deer calves
Background Understanding the fitness consequences of inbreeding is of major importance for evolutionary and conservation biology. However, there are few studies using pedigree-based estimates of inbreeding or investigating the influence of environment ...
Walling Craig A +5 more
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Inbreeding depression due to recent and ancient inbreeding in Dutch Holstein–Friesian dairy cattle
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
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Inbreeding depression for kit survival at birth in a rabbit population under long-term selection
Background Accumulation of detrimental mutations in small populations leads to inbreeding depression of fitness traits and a higher frequency of genetic defects, thus increasing risk of extinction.
Ino Curik +6 more
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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
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A multivariate analysis with direct additive and inbreeding depression load effects
Background Inbreeding is caused by mating between related individuals and its most common consequence is inbreeding depression. Several studies have detected heterogeneity in inbreeding depression among founder individuals, and recently a procedure for ...
Luis Varona +4 more
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This study provides comprehensive results on the current status of inbreeding depression for traits upon which sheep are selected for the herdbook in Germany. A total of 30 sheep breeds from the OviCap national database met the inclusion criteria for the
Cathrin Justinski +2 more
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