Results 91 to 100 of about 33,384 (228)

The role of inbreeding and outbreeding in herbivore resistance and tolerance in Vincetoxicum hirundinaria [PDF]

, 2017
Background and Aims Inbreeding via self-fertilization may have negative effects on plant fitness (i.e. inbreeding depression). Outbreeding, or cross-fertilization between genetically dissimilar parental plants, may also disrupt local adaptation or ...
Laukkanen, Liisa, Leimu, Roosa, Lilley, Marianna, Muola, Anne, Mutikainen, Pia   +4 more
core  

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

Genomic Analysis of Inbreeding Depression on Productive Traits in Rubia Galega Beef Cattle Breed

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In autochthonous livestock breeds with small populations, such as the Rubia Galega from Galicia (Spain), mating between relatives is common and can lead to inbreeding depression. Genomic inbreeding coefficients were estimated for 4984 animals using ~63,000 SNPs to assess inbreeding depression in four key traits: age at first calving (AFC) with
N. Mejuto‐Vázquez, C. Hervás‐Rivero, R. Rodríguez‐Bermúdez, D. López‐Carbonell, M. Hermida, P. Martínez, L. Varona   +6 more
wiley   +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

Bottlenecks and inbreeding depression in autotetraploids

Evolution, 2018
Inbreeding depression is dependent on the ploidy of populations and can inhibit the evolution of selfing. While polyploids should generally harbor less inbreeding depression than diploids at equilibrium, it has been unclear whether this pattern holds in non-equilibrium conditions following bottlenecks.
Nathan C, Layman, Jeremiah W, Busch
openaire   +3 more sources

Genetic Parameters and Sex‐Specific Architecture of Observed and Latent Fertility Phenotypes in a Closed Breeding Nucleus of an Arctic Salmonid

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Successful reproduction is a key factor for efficient breeding schemes and sustainable animal farming. Aquaculture breeding programs rely heavily on small fractions of selected breeders to yield large production stocks, given the high fecundity typically observed in these species. In Sweden, Arctic charr (Salvelinus alpinus) is a salmonid with
Fotis Pappas, Martin Johnsson, Paul Vincent Debes, Christos Palaiokostas   +3 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

Bony fish genomes: Status and gaps

Journal of Fish Biology, EarlyView.
Abstract Bony fish constitute an exceptionally species‐rich group of aquatic vertebrates, comprising more than 95% of all living fish. The adaptive processes on the diversity of environments they inhabit make them a highly diverse group from taxonomic, morphological and evolutionary standpoints.
Noelia Pérez‐Pereira, Carmen Bouza, Paulino Martínez, Diego Robledo   +3 more
wiley   +1 more source

Apparent inbreeding preference despite inbreeding depression in the American crow

Molecular Ecology, 2019
AbstractAlthough matings between relatives can have negative effects on offspring fitness, apparent inbreeding preference has been reported in a growing number of systems, including those with documented inbreeding depression. Here, we examined evidence for inbreeding depression and inbreeding preference in two populations (Clinton, New York, and Davis,
Andrea K. Townsend, Conor C. Taff, Melissa L. Jones, Katherine H. Getman, Sarah S. Wheeler, Mitch G. Hinton, Ryane M. Logsdon   +6 more
openaire   +3 more sources

Using herbarium collections to study genetic responses to global change

New Phytologist, EarlyView.
Summary Earth's c. 406 million herbarium specimens represent a largely untapped resource of genetic data that could transform our understanding of global plant populations. Advances in DNA sequencing have made the extraction of genetic data from these preserved specimens increasingly feasible, enabling new insights into plant biodiversity and ...
Lucas Eckert, Isaac Eckert, Olivia Rahn, Cameron P. So, Rowan D. H. Barrett   +4 more
wiley   +1 more source