maternal effect


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
Related to maternal effect: Maternal inheritance

maternal effect

[mə′tərn·əl i‚fekt]
(genetics)
Determination of characters of the progeny by the maternal parent; mediated by the genetic constitution of the mother.
References in periodicals archive ?
The genetic model applied for estimating sire additive genetic, maternal effects and residual variances in matrix notation was
The maternal permanent environmental effect was significant for birth weight and ignoring maternal effects in the model caused the over estimation of direct heritability.
Beyond size-number trade-offs: clutch size as a maternal effect.
Maternal effects on seed germination and seedling size in field environments were estimated using an ANCOVA model, with habitat where seeds were planted as the main factor, and mother size, mother canopy openness and average seed mass as covariates.
A second bias resulted from not estimating m, the maternal effect coefficient, a scaling factor for maternal phenotypic effects that affected the dam-offspring covariance.
The expression of maternal effect for the iron and zinc concentrations in common bean seeds seems to be related to the distribution of these minerals in the fractions of the seed.
Maternal effects are usually detected in viability and growth rates during early developmental stages (Schwabl 1996, Eising et al.
1993), we expected lines with best GCA to also have favorable maternal effect for weevil resistance parameters.
Since estimates of maternal hereditability had higher rates between birth and two months old, a greater participation of maternal effect could be denoted in the performance of animals during the period (Figure 2B).

Full browser ?