Results 61 to 70 of about 5,225 (221)

Variação genética, herdabilidades e ganhos na seleção para caracteres de crescimento e forma em teste de progênies de polinização aberta de Eucalyptus cloeziana. Genetic variation, heritability and genetic gains for growth and stem form traits in open-pollinated progenies test of Eucalyptus cloeziana. [PDF]

Revista do Instituto Florestal, 2011
O objetivo deste estudo foi estimar parâmetros genéticos para caracteres de crescimento e forma em um teste de progênies de Eucalyptus cloeziana, com 24 anos de idade, estabelecido em Luiz Antônio, SP.
Christian Luiz Ferreira BERTI, Miguel Luiz Menezes FREITAS, Antônio Carlos Scatena ZANATTO, Eurípedes MORAIS, Mario Luiz Teixeira de MORAES, Alexandre Magno SEBBENN   +5 more
doaj  

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

Revista 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, Carlos Eduardo Sicole Seoane   +1 more
doaj   +1 more source

Use of Cluster Analysis for Identifying Metafounders

Journal 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, Christian Edel, Eduardo C. G. Pimentel, Reiner Emmerling, Kay‐Uwe Götz, Georg Thaller   +5 more
wiley   +1 more source

Genetic Ancestry Reveals Historical Diversity of Formation Across Three Brazilian Communities of African Descent (Quilombos) in Central Brazil

American Journal of Human Biology, Volume 38, Issue 1, January 2026.
ABSTRACT Introduction Characterized as relatively isolated communities, many Brazilian quilombos were formed during the period of slavery in Brazil when enslaved persons (most of African descent) ran away or were abandoned by their enslavers. Quilombos in Central Brazil, whose settlement was more recent due to the relative isolation of the region ...
Sabrina Guimarães Paiva, Anna C. Rivara, Matheus de Castro Nóbrega, Rafaela de Cesare Parmezan Toledo, Maria de Nazaré Klautau‐Guimarães, Sidney Emanuel Batista dos Santos, Lorena Madrigal, Silviene Fabiana de Oliveira   +7 more
wiley   +1 more source

A Similarity Matrix for Preserving Haplotype Diversity Amongst Parents in Genomic Selection. [PDF]

J Anim Breed Genet
ABSTRACT In genomic selection, balancing genetic gain with the preservation of genetic diversity is a critical challenge, requiring innovative approaches to parent selection. Traditional methods risk losing valuable genetic diversity by not fully accounting for the complex patterns of haplotype distribution.
Musa AA, Reinsch N.
europepmc   +2 more sources

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

, 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, Cassandro, Martino, Grajewski, Bartosz, Lisowski, Miros\u142aw, Szwaczkowski, Tomasz   +4 more
core   +1 more source

The cotton historical lines project—Part I: History and field evaluation

Crop Science, Volume 66, Issue 1, January/February 2026.
Abstract Common garden experiments have provided great insights into crop adaptation across many systems. Cotton (Gossypium spp.) cultivars have changed in the 20th and 21st centuries, but breeders have not quantified the degree of these changes. We synthesized a panel of 164 non‐genetically modified genotypes, from the private and public sectors ...
Grant T. Billings, Daniel Restrepo‐Montoya, Laine A. Dentinger, Jonathan W. Zirkel, B. Todd Campbell, Don C. Jones, Quentin D. Read, Peng W. Chee, Brian E. Scheffler, Candace H. Haigler, Amanda M. Hulse‐Kemp, Jodi A. Scheffler   +11 more
wiley   +1 more source

Genomic analysis of inbreeding and coancestry in Nordic Jersey and Holstein dairy cattle populations [PDF]

Journal of Dairy Science
In recent years, genomic selection (GS) has accelerated genetic gain in dairy cattle breeds worldwide. Despite the evident genetic progress, several dairy populations have also encountered challenges such as heightened inbreeding rates and reduced effective population sizes. The challenge has been to find a balance between achieving substantial genetic
Saija Riitta Tenhunen, Jørn Rind Thomasen, Lars Peter Sørensen, Peer Berg, Morten Kargo   +4 more
openalex   +3 more sources

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

, 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.), Fernández, Itziar, Goyache, Félix, Gutiérrez, J.P. (Juan), Gómez, Enrique, Royo, L.J. (Luis), Álvarez, Isabel   +6 more
core  

Analysis of Genetic Variation of Rice Straw Characteristics and Its Influence on Biomass

Plant Direct, Volume 10, Issue 1, January 2026.
ABSTRACT Rice straw is a key source of lignocellulosic biomass. GWAS can be used to identify genetic loci controlling stem morphological traits that influence biomass. This study aimed to investigate the genotypic diversity of rice straw internodes through GWAS, using 34,232 single‐nucleotide polymorphic sites with a minor allelic frequency (MAF ...
Mahta Mohamadiaza, Naser Farrokhi, Asadollah Ahmadikhah, Pär K. Ingvarsson, Mehdi Jahanfar   +4 more
wiley   +1 more source