Results 51 to 60 of about 5,051 (199)

Inferring Coancestry in Population Samples in the Presence of Linkage Disequilibrium [PDF]

open access: yesGenetics, 2012
Abstract In both pedigree linkage studies and in population-based association studies there has been much interest in the use of modern dense genetic marker data to infer segments of gene identity by descent (ibd) among individuals not known to be related, to increase power and resolution in localizing genes affecting complex traits.
M D, Brown   +3 more
openaire   +2 more sources

Use of Cluster Analysis for Identifying Metafounders

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In the metafounder approach, the relationship matrix of metafounders, Γ$$ \boldsymbol{\Gamma} $$ is used to transfer information on relationships between pedigree founders into the numerator relationship matrix A$$ \mathbf{A} $$, creating matrix AΓ$$ {\mathbf{A}}^{\boldsymbol{\Gamma}} $$.
Christine Anglhuber   +5 more
wiley   +1 more source

Fast and accurate joint inference of coancestry parameters for populations and/or individuals.

open access: yesPLoS Genetics, 2023
We introduce a fast, new algorithm for inferring from allele count data the FST parameters describing genetic distances among a set of populations and/or unrelated diploid individuals, and a tree with branch lengths corresponding to FST values.
Tristan Mary-Huard, David Balding
doaj   +1 more source

Genetic variability of some Italian and Polish duck breeds [PDF]

open access: yes, 2018
This study is aimed to estimate and compare the inter- and within-breed variability of duck populations under genetic conservation programmes. The following four duck breeds were analysed: Germanata Veneta (AGV) and Mignon (AMG) from Italy, Pekin Krajowy
Carc\uf2, Giuseppe   +4 more
core   +1 more source

ESTIMATION OF THE COANCESTRY COEFFICIENT: BASIS FOR A SHORT-TERM GENETIC DISTANCE [PDF]

open access: yesGenetics, 1983
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

Reproduction partially compensates for human‐caused mortality in a cooperative breeder

open access: yesEcosphere, Volume 17, Issue 2, February 2026.
Abstract Reproductive output can vary widely among mammalian species. There are many drivers that affect reproductive output including evolutionary, environmental, population, social, and individual traits. Although several factors, including human‐caused mortality, can affect reproductive output, we generally have a poor understanding of how such ...
David E. Ausband
wiley   +1 more source

Estimativa de tamanho efetivo de endogamia por marcadores genéticos Estimative of inbreeding effective size by genetic markers

open access: yesRevista Árvore, 2005
Atividades de conservação e melhoramento genético requerem medidas de tamanho efetivo para manutenção e controle do potencial evolutivo das populações sob manipulação.
Alexandre Magno Sebbenn   +1 more
doaj   +1 more source

Testing the usefulness of the molecular coancestry information to assess genetic relationships in livestock using a set of Spanish sheep breeds [PDF]

open access: yes, 2010
Recent studies have proposed the use of molecular coancestry coefficients as a measure of genetic variability and as a useful tool for conservation purposes.
Arranz, J.J. (J.)   +6 more
core  

Genomics Reveals Extensive Population Structure and Undescribed Phylogenetic Relationships in the Cascade Torrent Salamander (Rhyacotriton cascadae)

open access: yesJournal of Biogeography, Volume 53, Issue 2, February 2026.
ABSTRACT Aim Aims of the study are to examine patterns of range‐wide genetic differentiation and population structure in a headwater obligate salamander living in a geologically rich region, to identify genetically distinct populations and areas of gene flow between them. Location Oregon and Washington in the Pacific Northwest, United States of America.
Christopher D. Cousins   +6 more
wiley   +1 more source

Mating schemes for optimum contribution selection with constrained rates of inbreeding

open access: yesGenetics Selection Evolution, 2000
The effect of non-random mating on genetic response was compared for populations with discrete generations. Mating followed a selection step where the average coancestry of selected animals was constrained, while genetic response was maximised.
Meuwissen Theo HE, Sonesson Anna K
doaj   +1 more source

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