Results 21 to 30 of about 224 (122)
The inbreeding coefficient (F) of individuals can be estimated from molecular marker data, such as SNPs, using measures of homozygosity of individual markers or runs of homozygosity (ROH) across the genome.
Armando Caballero +2 more
doaj +1 more source
Population structure of the Trakehner Horse breed
The objective of this study was to examine the population structure of the Trakehner Horse breed. A total of 13 793 pedigree records were used for analysing the active breeding population and their ancestors dating back to 1950.
R. Teegen, C. Edel, G. Thaller
doaj +1 more source
Inbreeding, effective population size, and coancestry in the Latxa dairy sheep breed [PDF]
Traditionally, breeding programs have estimated and managed inbreeding based on pedigree information. The availability of genomic marker panels has made possible new alternatives to achieve more precise estimates, for example in case of missing pedigree.
I. Granado-Tajada +3 more
openaire +4 more sources
ESTIMATION OF THE COANCESTRY COEFFICIENT: BASIS FOR A SHORT-TERM GENETIC DISTANCE [PDF]
ABSTRACT A distance measure for populations diverging by drift only is based on the coancestry coefficient θ, and three estimators of the distance D = -ln(1 - θ) are constructed for multiallelic, multilocus data. Simulations of a monoecious population mating at random showed that a weighted ratio of single-locus estimators performed ...
J, Reynolds, B S, Weir, C C, Cockerham
openaire +2 more sources
O sistema de reprodução de duas populações de Eschweilera ovata foi quantificado por análise de isoenzimas em estrutura de progênies usando os modelos misto de reprodução e cruzamentos correlacionados.
Eduardo Gusson +2 more
doaj +1 more source
AllCoPol: inferring allele co-ancestry in polyploids
Background Inferring phylogenetic relationships of polyploid species and their diploid ancestors (leading to reticulate phylogenies in the case of an allopolyploid origin) based on multi-locus sequence data is complicated by the unknown assignment of ...
Ulrich Lautenschlager +2 more
doaj +1 more source
Sustainable long-term conservation of rare cattle breeds using rotational AI sires
The development of inbreeding in rotation breeding schemes, sequentially using artificial insemination (AI) sires over generations, was investigated for a full AI scheme. Asymptotic prediction formulae of inbreeding coefficients were established when the
Avon Laurent, Colleau Jean-Jacques
doaj +1 more source
Applying SNP-Derived Molecular Coancestry Estimates to Captive Breeding Programs [PDF]
Captive breeding programs for wildlife species typically rely on pedigrees to inform genetic management. Although pedigree-based breeding strategies are quite effective at retaining long-term genetic variation, management of zoo-based breeding programs continues to be hampered when pedigrees are poorly known. The objective of this study was to evaluate
Jamie A, Ivy +4 more
openaire +2 more sources
Reduction of inbreeding in commercial females by rotational mating with several sire lines
A mating system to reduce the inbreeding of commercial females in the lower level was examined theoretically, assuming a hierarchical breed structure, in which favorable genes are accumulated in the upper level by artificial selection and the achieved ...
Mukai Fumio +2 more
doaj +1 more source
Abstract Replicated pairs of ancestral and evolutionarily derived populations provide opportunities to test hypotheses about the deterministic laws of evolution. The Asellus aquaticus species complex is an invertebrate model system with several independent surface‐to‐cave transitions and a complicated and unresolved evolutionary history.
Peter Trontelj +3 more
wiley +1 more source

