Results 21 to 30 of about 61,287 (213)

On the expected relationship between inbreeding, fitness, and extinction

Genetics 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

ON THE MEASUREMENT OF INBREEDING DEPRESSION [PDF]

Evolution, 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

Prediction of genetic gain from quadratic optimisation with constrained rates of inbreeding [PDF]

, 2006
There are selection methods available that allow the optimisation of genetic contributions of selection candidates for maximising the rate of genetic gain while restricting the rate of inbreeding. These methods imply selection on quadratic indices as the
Avendano, S, John A. Woolliams, Woolliams John A, Avendaño Santiago, John A Woolliams, Villanueva Beatriz, Woolliams, JA, Villanueva, B., Beatriz Villanueva, Villanueva, B, Woolliams, John, Avenano, S., Santiago Avendaño   +12 more
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Comparing pedigree and genomic inbreeding coefficients, and inbreeding depression of reproductive traits in Japanese Black cattle

BMC Genomics, 2023
Background Pedigree-based inbreeding coefficients have been generally included in statistical models for genetic evaluation of Japanese Black cattle. The use of genomic data is expected to provide precise assessment of inbreeding level and depression ...
Motohide Nishio, Keiichi Inoue, Shinichiro Ogawa, Kasumi Ichinoseki, Aisaku Arakawa, Yo Fukuzawa, Toshihiro Okamura, Eiji Kobayashi, Masaaki Taniguchi, Mika Oe, Kazuo Ishii   +10 more
doaj   +1 more source

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

, 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.
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Inbreeding and selection on sex ratio in the bark beetle Xylosandrus germanus [PDF]

, 2011
Background: Local Mate Competition (LMC) theory predicts a female should produce a more female-biased sex ratio if her sons compete with each other for mates.
Keller, Laurent, Christian Bernasconi, Keller, L., David M Shuker, Bernasconi, Christian, Katharina Peer, Peer Katharina, Bernasconi Christian, Shuker, D.M., Keller Laurent, Shuker David M, Peer, Katharina, Laurent Keller, Taborsky, M., Taborsky, Michael, Bernasconi, C., Shuker, David M., Peer, K., Taborsky Michael, Michael Taborsky   +19 more
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Strategies for controlling rates of inbreeding in MOET nucleus schemes for beef cattle [PDF]

, 1994
A closed MOET (multiple ovulation and embryo transfer) nucleus scheme, with overlapping generations, was modelled for beef cattle by stochastic simulation. Selection was carried out for 25 years on a trait measurable in both sexes and with a heritability
Simm G, Woolliams JA, B Villanueva, Simm, Geoff, G. Simm, B Villanueva, JA Woolliams, Woolliams, JA, Villanueva, B., Villanueva, B, Simm, G, Woolliams, John, G Simm, B. Villanueva, Villanueva B   +14 more
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Inbreeding Calculated with Runs of Homozygosity Suggests Chromosome-Specific Inbreeding Depression Regions in Line 1 Hereford

Animals, 2021
The goal of this study was to evaluate inbreeding in a closed beef cattle population and assess phenotype prediction accuracy using inbreeding information.
Bethany Pilon, Kelly Hinterneder, El Hamidi A. Hay, Breno Fragomeni   +3 more
doaj   +1 more source

Variance component analysis of skin and weight data for sheep subjected to rapid inbreeding [PDF]

, 1999
A variance component analysis was carried out on data from a 20-year experiment in the rapid inbreeding of purebred and crossbred lines of three hill breeds of sheep.
Shaw, F.H., Frank H Shaw, JA Woolliams, Shaw Frank H, Woolliams JA, Frank H. Shaw, J.A. Woolliams, Woolliams, John   +7 more
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Characterizing and Eliminating the Inbreeding Load

Veterinary Sciences, 2023
The authors evaluated the relevant literature related to purging, which is the interaction between selection and inbreeding in which the population may eliminate its inbreeding load at least partially. According to the relevant literature, the inbreeding
István Nagy, Thi Anh Nguyen
doaj   +1 more source