Results 41 to 50 of about 805,904 (191)

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

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
core   +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

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.
core   +1 more source

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

Success of coastal sage scrub restoration is influenced by local adaptations of shrub species

American Journal of Botany, EarlyView.
Abstract Premise Restoring plant communities is increasingly challenging with climate change. While practitioners have traditionally used local seed sources, many are recommending assisted migration, possibly from more extreme environments such as inland rather than coastal environments, for restoration.
Moises R. Perea‐Vega, Megan E. Lulow, Julie E. Coffey, Amy K. Henry, Katharina T. Schmidt, Priscilla M. Ta, Kailen A. Mooney, Sarah Kimball   +7 more
wiley   +1 more source

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
core   +1 more source

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

Long‐distance pollen transport mediated by migratory hoverflies

Ecography, EarlyView.
Long‐distance animal migrations shape ecosystems by redistributing nutrients, connecting populations, and mediating ecological interactions. However, the ecological contributions of many abundant insect migrants remain poorly quantified. Hoverflies are among the most numerous migratory insects and highly efficient pollinators, suggesting that their ...
Antonín Hlaváček, Martin Freudenfeld, Tadeáš Ryšan, Šimon Zeman, Vojtěch Jirásek, Radek K. Lučan, Karl R. Wotton, Jakub Štenc, Jiří Hadrava   +8 more
wiley   +1 more source

Monitoring Changes in Sperm Concentration and Quality Help Improve Captive Breeding Outcomes of the Endangered Amphibian Rawlinsonia littlejohni

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Amphibians are among the most threatened taxonomic groups, with many species experiencing rapid declines that have resulted in small, isolated populations vulnerable to inbreeding depression and reduced fertility. One major outcome of inbreeding is lowered fecundity, often linked to morphological changes in gametes.
Nadine Nolan, Anne Ibbotson, Natalie Calatayud, Matt W. Hayward, Alex Callen, Kaya Klop‐Toker, Rose Upton   +6 more
wiley   +1 more source