Results 81 to 90 of about 35,196 (272)

Optimizing genetic diversity in Australian Holsteins and Jerseys: A comparative analysis of whole-genome and regional inbreeding depression effects

Journal of Dairy Science
: Homozygosity, which can arise from several genetic mechanisms including inbreeding, is frequently observed in the offspring of related parents. This inbreeding can lead to a reduced performance, owing to a phenomenon known as inbreeding depression ...
B.A. Scott, M. Haile-Mariam, F. Tiezzi, I. van den Berg, C. Maltecca, J.E. Pryce   +5 more
doaj   +1 more source

Nest Survival Models and Genomics Illuminate Hybridisation Attempts, Guiding Culturally Informed Management to Recover a Critically Endangered Seabird

Animal Conservation, EarlyView.
Long‐term monitoring has revealed hybridisation attempts between the Critically Endangered Kuaka Whenua Hou (KWH, Pelecanoides whenuahouensis) and the abundant Kuaka (P. urinatrix). Here we use modelling based on population monitoring data in tandem with genomic data to investigate these attempts and the risk they pose to KWH recovery.
N. J. Forsdick, T. R. Buckley, T. Davis, I. Debski, J. H. Fischer   +4 more
wiley   +1 more source

Inbreeding depression for producer-recorded udder, metabolic, and reproductive diseases in US dairy cattle

Journal of Dairy Science
: This study leveraged a growing dataset of producer-recorded phenotypes for mastitis, reproductive diseases (metritis and retained placenta), and metabolic diseases (ketosis, milk fever, and displaced abomasum) to investigate the potential presence of ...
Emmanuel A. Lozada-Soto, Kristen L. Parker Gaddis, Francesco Tiezzi, Jicai Jiang, Li Ma, Sajjad Toghiani, Paul M. VanRaden, Christian Maltecca   +7 more
doaj   +1 more source

The pattern and distribution of deleterious mutations in maize [PDF]

, 2013
Most non-synonymous mutations are thought to be deleterious because of their effect on protein sequence. These polymorphisms are expected to be removed or kept at low frequency by the action of natural selection, and rare deleterious variants have been ...
Mezmouk, Sofiane, Ross-Ibarra, Jeffrey
core   +2 more sources

Genotyping Contemporary Captive and Historical Wild Western Lowland Gorillas Indicates Captive Breeding Is Maintaining Genetic Diversity in a Critically Endangered Primate

Animal Conservation, EarlyView.
Captive populations of threatened species risk losing genetic diversity over time. We evaluated the genetic status of contemporary captive western lowland gorillas (Gorilla gorilla gorilla) at Howletts and Port Lympne and compared this with specimens from a historical wild population.
Jaimie Morris, Tony King, John Hills, Simon C. Harvey, Jane Hopper, Rodrigo Vega   +5 more
wiley   +1 more source

Inbreeding depression and outbreeding depression in plants [PDF]

Heredity, 1996
The genetic mechanism underlying an ‘Optimal outcrossing distance’ in plants (sensu Price and Waser) is discussed. Monte Carlo simulations of a population subdivided as a one-dimensional stepping-stone are used to evaluate possible genetic mechanisms.
Mikkel Heide Schierup, Freddy Bugge Christiansen   +1 more
openaire   +1 more source

The Effects of LED Daylength Extensions on the Daily Activity Patterns of a Greenhouse Biological Control Agent, Aphidius matricariae

Entomologia Experimentalis et Applicata, EarlyView.
We used automated activity monitors to examine how light‐emitting diode illumination affects the daily locomotor activity of the parasitoid biocontrol agent Aphidius matricariae. We compared 4‐ to 20 h broad‐spectrum white (BSW) photoperiods, and 12 h BSW photoperiods extended with an additional 6 h of red‐blue, red‐green‐blue, or BSW light, or no ...
Jessica L. Fraser, Paul K. Abram, Martine Dorais   +2 more
wiley   +1 more source

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

Genetics 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, Christian Maltecca, Duc Lu, Stephen Miller, John B. Cole, Francesco Tiezzi   +5 more
doaj   +1 more source

Self-fertilization does not lead to inbreeding depression in Typha parent species or hybrids [PDF]

, 2023
Danielle Rock, Amanda Whitehead, Kimberly Parno, Vikram Bhargav, Joanna R. Freeland, Marcel E. Dorken   +5 more
openalex   +1 more source

History and structure of the closed pedigreed population of Icelandic Sheepdogs [PDF]

, 2009
Background - Dog breeds lose genetic diversity because of high selection pressure. Breeding policies aim to minimize kinship and therefore maintain genetic diversity.
Pieter A Oliehoek, Piter Bijma, Arie van der Meijden, R Pong-Wong, AK Sonesson, GJ Ubbink, GJ Ubbink, GJ Ubbink, JD Ballou, RK Wayne, AL Nielen, S Bjornerfeldt, GJ Ubbink, EA Ostrander, L Maignel, R Frankham, A Caballero, RC Lacy, RC Lacy, PA Oliehoek, TH Meuwissen, H Eding, PHA Sneath, S Wright, G Leroy, P Oliehoek, I Głażewska, GA Ólafsdóttir   +27 more
core   +1 more source