نتایج جستجو برای: genetic covariance
تعداد نتایج: 641415 فیلتر نتایج به سال:
Despite the success of large-scale genome-wide association studies (GWASs) on complex traits, our understanding of their genetic architecture is far from complete. Jointly modeling multiple traits' genetic profiles has provided insights into the shared genetic basis of many complex traits. However, large-scale inference sets a high bar for both statistical power and biological interpretability....
A total of 179,460 monthly test-day milk records (thrice a day milking) obtained from 17,946 Iranian Holstein heifers distributed in 287 herds and calved from 1986 to 2001 were used to predict breeding value of animals. Monthly test-day milk production was analysed by applying a covariance function in which the effects of herd-year-season of production (HYSOP), age at test day (covariate), addi...
OBJECTIVE Covariance functions (CF) are, in essence, the ‘infinite-dimensional’ equivalent to covariance matrices for traits measured repeatedly, potentially infinitely many times, along some continuous scale such as time or age. CFs produce a continuous description of the covariance structure over time, giving the covariance between any two ages as a function of the ages. DXMRR allows the esti...
Patterns of genetic variation and covariation strongly affect the rate and direction of evolutionary change by limiting the amount and form of genetic variation available to natural selection. We studied evolution of morphological variance-covariance structure among seven populations of house finches (Carpodacus mexicanus) with a known phylogenetic history. We examined the relationship between ...
Effects of causal networks on the structure and stability of resource allocation trait correlations.
Discovering the mechanisms by which genetic variation influences phenotypes is integral to understanding life-history evolution. Models describing causal relationships among traits in a developmental hierarchy provide a functional basis for understanding the correlations often observed among life-history traits. In this paper, we evaluate a developmental network model of life-history traits bas...
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