نتایج جستجو برای: heritability and repeatability
تعداد نتایج: 16828808 فیلتر نتایج به سال:
The efficiency of cross-breeding programs mainly depends on the choice of the progenitors and the knowledge on the transmission of traits that breeder wants to improve. In the present study heritability rate of 65 traits related to different parts of vegetative, reproductive, nut and kernel in 12 populations (320 progenies) derived from controlled crosses of 13 local and foreign almond genotype...
the aim of this study was to determine the effect of marker density, level of heritability, number of qtls, and size of training set on the genomic accuracy over three generations. thereby, a trait was simulated with heritability of 0.10, 0.25 or 0.40. for each animal, a genome with 20 chromosomes, 1 morgan each, was simulated. different marker densities (2000, 4000 and 6000 markers) and 400 an...
برآورد وراثتپذیری محتوای روغن و پروتئین دانه در تودههای بومی آفتابگردان آجیلی در سطوح مختلف آبیاری
In order to investigate the genetic diversity and the heritability of oil and protein content of grain in confectionary sunflower under different water availability, 56 local populations were studied in three separate experiments with rectangular lattice design (7×8) with two replications at Agricultural Research Center of West-Azerbaijan province, Urmia, Iran in 2012. Water treatments were wel...
The precision of evaluation for agronomic traits is very important in the field experiments to determine the genetic potential of genotypes or effect of treatments. The precision of the experiment mainly depends on the number of replications. The objective of this study was to investigate the effect of number of replications on the precision of genotype evaluation, estimation of variance compon...
Can heritability estimates provide causal information? This paper argues for an affirmative answer: since a non-nil estimate satisfies certain characteristic properties of causation (i.e., association, manipulability, and counterfactual dependence), it increases the probability that relation between genotypic variance phenotypic is (at least partly) causal. Contrary to earlier proposals in lite...
The aim of this study was to compare different methods of Bayesian (parameteric) approaches for predicting genomic breeding values of traits with different genetic architecture in different distribution of gene effects, number of quantitative traits loci, heritability and the number of reference population using simulated data. A genome contained 3 chromosomes, with the length of 100 cM and 10...
pressure and inter-beat interval variability in man. Apart from that the topic of the study is interesting and important, the paper contains some terminological inconsistencies which seriously undermine implications of research and thus, credibility of the conclusions made by the Authors. It is not uncommon to find studies with inconsistent terminology and definitions, with some terms being def...
estimation of genetic parameters for pre weaning growth traits and lamb survival in iran black sheep
the aims of this research were to estimate of genetic parameters for pre-weaning traits and lamb survival in iran-black sheep. for this purpose 6344 records for birth weight (bw) and lamb survival (ls) and 5264 records for weaning weight (ww), average daily gain (adg) and kleiber ratio (kr) were available, which collected by abbasabad animal breeding and rearing station, over the period from 19...
hybrids were produced by crossing female caspian kutum rutilus frisii kutum with male grass carp ctenopharyngodon idella. the genome of eight larvae and parents were studied using microsatellite markers for genetic evaluation and verification. after dna extraction from parent fish and progeny, hybrid heritability of two loci was assessed using two pairs of microsatellite primers. hybridizie...
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