ISSN:
1432-2242
Keywords:
Narrow sense heritability
;
Analysis of covariance
;
Standardized heritability estimates
;
Genotype x environment interaction
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00252291
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