Results 11 to 20 of about 1,867,301 (331)

AN EXPERIMENTAL EVALUATION OF GENETIC CORRELATION [PDF]

open access: bronzeGenetics, 1973
ABSTRACT Heritability and genetic correlations realized from both single-trait and antagonistic index selection were compared with paternal half-sib estimates. Primary attention was focused on the genetic correlation between six-week body weight and six-week tail length.
J. J. Rutledge   +2 more
openalex   +4 more sources

Genetic correlations in mutation processes [PDF]

open access: yesPhysical Review E, 1999
We study the role of phylogenetic trees on correlations in mutation processes. Generally, correlations decay exponentially with the generation number. We find that two distinct regimes of behavior exist. For mutation rates smaller than a critical rate, the underlying tree morphology is almost irrelevant, while mutation rates higher than this critical ...
A. S. Lapedes, Eli Ben-Naim
openaire   +4 more sources

Genetic correlates of phenotypic heterogeneity in autism [PDF]

open access: yesNature Genetics, 2020
AbstractThe substantial phenotypic heterogeneity in autism limits our understanding of its genetic aetiology. To address this gap, we investigated genetic differences between autistic individuals (Nmax= 12,893) based on core (i.e., social communication difficulties, and restricted and repetitive behaviours) and associated features of autism, co ...
Varun Warrier   +82 more
openaire   +9 more sources

Genetic parameters for dystocia, milk yield and age at first calving in Brazilian Holstein cows

open access: yesJournal of Applied Animal Research, 2021
The present study aims to estimate genetic parameters for dystocia, milk yield and age at first calving of Holstein cows reared in intensive production systems located in the southeastern region of Brazil.
Gabriela Stefani   +6 more
doaj   +1 more source

Genetic analysis of cortical thickness and fractional anisotropy of water diffusion in the brain [PDF]

open access: yes, 2011
Objectives: The thickness of the brain’s cortical gray matter (GM) and the fractional anisotropy (FA) of the cerebral white matter (WM) each follow an inverted U-shape trajectory with age. The two measures are positively correlated and may be modulated
Anderson eWinkler   +18 more
core   +5 more sources

Revealing the Complex Relationship Among Hyperspectral Reflectance, Photosynthetic Pigments, and Growth in Norway Spruce Ecotypes

open access: yesFrontiers in Plant Science, 2022
Norway spruce has a wide natural distribution range, harboring substantial physiological and genetic variation. There are three altitudinal ecotypes described in this species.
Jakub Hejtmánek   +7 more
doaj   +1 more source

Identifying progressive imaging genetic patterns via multi-task sparse canonical correlation analysis: a longitudinal study of the ADNI cohort [PDF]

open access: yes, 2019
Motivation Identifying the genetic basis of the brain structure, function and disorder by using the imaging quantitative traits (QTs) as endophenotypes is an important task in brain science.
Du, Lei   +7 more
core   +1 more source

Avaliação e seleção precoce para crescimento de Pinus taeda Early evaluation and selection for growth in Pinus taeda

open access: yesPesquisa Agropecuária Brasileira, 2002
O objetivo deste trabalho foi avaliar a eficiência de diferentes métodos de seleção quanto aos caracteres ligados ao crescimento do fuste e o potencial da seleção precoce de genitores.
Estefano Paludzyszyn Filho   +2 more
doaj   +1 more source

Environmental stress alters genetic regulation of novelty seeking in vervet monkeys. [PDF]

open access: yes, 2011
Considerable attention has been paid to identifying genetic influences and gene-environment interactions that increase vulnerability to environmental stressors, with promising but inconsistent results.
Bailey, JN   +5 more
core   +1 more source

A COMPARISON OF GENETIC AND PHENOTYPIC CORRELATIONS [PDF]

open access: yesEvolution, 1988
Genetic variances and correlations lie at the center of quantitative evolutionary theory. They are often difficult to estimate, however, due to the large samples of related individuals that are required. I investigated the relationship of genetic- and phenotypic-correlation magnitudes and patterns in 41 pairs of matrices drawn from the literature in ...
openaire   +3 more sources

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