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The contributions of sex, genotype and age to transcriptional variance in Drosophila melanogaster
Nature Genetics, 2001Here we present a statistically rigorous approach to quantifying microarray expression data that allows the relative effects of multiple classes of treatment to be compared and incorporates analytical methods that are common to quantitative genetics.
W, Jin +5 more
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Modules of genotypic variance reflect heterogeneity across TDP‐43 proteinopathies
Alzheimer's & Dementia, 2022AbstractBackgroundTAR DNA‐binding protein (TDP‐43) proteinopathies yield a variety of neurodegenerative conditions including amyotrophic lateral sclerosis (ALS), frontotemporal lobar degeneration (FTLD), and hippocampal sclerosis of aging (HS‐Aging).
Barbara E Spencer +8 more
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Genotypic and Phenotypic Variances and Correlations in Peas1
Crop Science, 1975AbstractEight lines of peas (Pisum sativum L.) and all possible Fl's among them were grown in five environments to study the genotypic and phenotypic variances and correlations among eight traits. Genotypes and environments had highly significant effects on all traits.
Shivaji Pandey, E. T. Gritton
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Bayesian Modeling of Heterogeneous Error and Genotype × Environment Interaction Variances
Crop Science, 2006An important assumption in the analysis of multienvironment cultivar trials is homogeneity of error and genotype × environment interaction variances. When variances are heterogeneous, the best estimators of performance are obtained by weighting inversely to variance components.
Jode W. Edwards, Jean‐Luc Jannink
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Changes in Variance Components of Flanking Marker Genotypes Under Varying Selection Intensities
Acta Genetica Sinica, 2006Selection is practically ubiquitous during marker-QTL linkage analysis with an experimental population. Thus, it is necessary to investigate the impacts of selection upon linkage analyses in order to obtain unbiased estimates of QTL position and effect.
Hui, Wang, Yao-Sheng, Chen
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Evolution, 2000
When traits experience directional selection, such as that imposed by sexual selection, their genetic variance is expected to diminish. Nonetheless, theory and findings from sexual selection predict and demonstrate that male traits favored by female choice retain substantial amounts of additive genetic variance.
F Y, Jia, M D, Greenfield, R D, Collins
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When traits experience directional selection, such as that imposed by sexual selection, their genetic variance is expected to diminish. Nonetheless, theory and findings from sexual selection predict and demonstrate that male traits favored by female choice retain substantial amounts of additive genetic variance.
F Y, Jia, M D, Greenfield, R D, Collins
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Capturing the Heterogeneity of the Error Variances of a Group of Genotypes in Crop Cultivar Trials
Crop Science, 2013ABSTRACTAppropriate experimental designs provide an efficient estimate of cultivar performance by allowing better control of experimental error. The standard approach assumes homogeneity of experimental error variances across plots. However, a given trial may involve genotypes having different scales of response and/or associated with plots with ...
Murari Singh +6 more
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GENOTYPE–ENVIRONMENT INTERACTION VARIANCES IN CEREAL YIELDS IN WESTERN CANADA
Canadian Journal of Plant Science, 1968Yield data for barley, oats, hard red spring and durum wheats from 10 years of testing m western Canada were analyzed. Variety, variety × location interaction, and error components of variance were estimated and the relative values of the latter two were found to differ from those already reported in the literature. The relative values of the variety ×
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Variance components and heritabilities of yield and agronomic traits among cowpea genotypes
Euphytica, 2010The phenotypic expression and heritability of quantitative traits vary due to genotypic differences, environmental influences and genotype by environment interactions. The objective of this study was to determine variance components and heritabilities of seed yield and its components in cowpea. Field experiments were conducted at three locations, three
Hussein Shimelis, Rhandzu Shiringani
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[Influence of population fusion on genotypic variance].
Yi chuan xue bao = Acta genetica Sinica, 1992Effect of population fusion on genetic variance was explored. Without dominance the genotypic variance is greater after fusion than that before fusion. When dominance is complete, the genotypic variance is greater after fusion than that before fusion if [formula: see text], and the genotypic variance is smaller after fusion than that before fusion if ...
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