Estimation of heritability by parent-offspring regression

Fernandez, G.C.J. and Miller, J.C. (1965) Estimation of heritability by parent-offspring regression. Theoretical and Applied Genetics, 70 (6). pp. 650-654.

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The implications of bias due to previous inbreeding of parents and genotype x environmental interaction on narrow sense heritability (h2) estimates by parent-offspring regression are enumerated. To remove the bias caused by genotype x environment interaction, an analysis of covariance model could be used. In special cases, where phenotypic expression is a result of two organisms interacting, such as in symbiotic N2 fixation, an analysis of covariance model with a test of heterogeneity of slopes is recommended. When host genotype x strain interactions are significant, separate heritability estimates for each strain are suggested to take advantage of genotype x strain interaction, which may be a major factor contributing to the expression of N2 fixation traits

Item Type: Article
Uncontrolled Keywords: Narrow sense heritability - Analysis of covariance - Standardized heritability estimates - Genotype x environment interaction
Author Affiliation: Texas A & M University Department of Horticultural Sciences 77843 College Station TX USA 77843 College Station TX USA
Subjects: Crop Improvement > Biotechnology
Plant Physiology and Biochemistry > Biochemistry
Divisions: Other Crops
Depositing User: Ms K Syamalamba
Date Deposited: 17 Aug 2011 09:15
Last Modified: 17 Aug 2011 09:15
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