The use of genomic coancestry matrices in the optimisation of contributions to maintain genetic diversity at specific regions of the genome [PDF]
BACKGROUND: Optimal contribution methods have proved to be very efficient for controlling the rates at which coancestry and inbreeding increase and therefore, for maintaining genetic diversity.
Beatriz Villanueva +4 more
core +5 more sources
Pedigree analysis and inbreeding effects over morphological traits in Campolina horse population
Genetic improvement, without control of inbreeding, can go to loss of genetic variability, reducing the potential for genetic gains in the domestic populations.
F.O. Bussiman +5 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
Genomic inbreeding estimation in small populations: Evaluation of runs of homozygosity in three local dairy cattle breeds [PDF]
In the local breeds with small population size, one of the most important problems is the increase of inbreeding coefficient (F). High levels of inbreeding lead to reduced genetic diversity and inbreeding depression.
DI GERLANDO, Rosalia +5 more
core +2 more sources
A proximal decomposition of inbreeding, coancestry and contributions
SummaryWright's (1922) coalescence probabilistic method decomposes the average coancestry or the average inbreeding of the population of interest into contributions of ancestors who are directly responsible for coancestry. These ancestors are less numerous and younger than those given by Caballero & Toro's (2000) method.
Colleau, J Jacques, J. J. +1 more
openaire +3 more sources
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
Removing exogenous information using pedigree data
Management of certain populations requires the preservation of its pure genetic background. When, for different reasons, undesired alleles are introduced, the original genetic conformation must be recovered.
A Caballero +31 more
core +2 more sources
Fertility Variation and Effective Population Size in a Teak Clonal Seed Orchard [PDF]
A 27 year old clonal seed orchard of teak (Tectona grandis L.f ) in Padangan, East Java comprising 24 clones, was evaluated for fertility, offspring diversity, and genetic drift.
Sumardi, S. (Sumardi)
core +3 more sources
Variação genética, herdabilidades e ganhos na seleção para caracteres de crescimento em teste de progênies de Pinus caribaea var. bahamensis aos 20 anos de idade em Assis−SP. Genetic variation, herdabilities and gains in selection for growth traits in progeny test of Pinus caribaea var. bahamensis at 20 years of age in Assis−SP. [PDF]
O objetivo deste estudo foi estimarparâmetros genéticos para caracteres decrescimento em um teste de progênies de Pinuscaribaea var. bahamensis, aos 20 anos de idade.O teste de progênies foi instalado com sementes depolinização aberta provenientes de 89 ...
José Carlos Molina MAX +2 more
doaj
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

