maternal inheritance


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Related to maternal inheritance: Maternal effect

inheritance

 [in-her´ĭ-tans]
1. the acquisition of characters or qualities by transmission from parent to offspring.
2. that which is transmitted from parent to offspring; see also gene, deoxyribonucleic acid, and heredity.
intermediate inheritance inheritance in which the phenotype of the heterozygote falls between that of the two homozygotes.
maternal inheritance the transmission of characters that are dependent on peculiarities of the egg cytoplasm produced, in turn, by nuclear genes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ma·ter·nal in·her·i·tance

transmission of characters that are dependent on properties of the egg cytoplasm produced by nuclear genes or by mitochondrial genes or both.
Farlex Partner Medical Dictionary © Farlex 2012

maternal inheritance

Genetics An inheritance pattern displayed by mitochondrial genes that are propagated from one generation to the next through mom; the mitochondria of the zygote come almost entirely from the ovum. See Gene, Inheritance, Mitochondria, Zygote.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

maternal inheritance

a form of CYTOPLASMIC INHERITANCE in which genes are passed to the offspring from the female only.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
In addition to the active digestion of male organelle nuclei by the nuclease, the difference in size between male and female gametes in anisogamous and oogamous organisms indicates that the contribution to the progeny of male organellar genomes (DNA) is small, while that of female gametes is large, suggesting that anisogamy and oogamy reinforce maternal inheritance. (4)
In the last step, a new theory concerning the significance of maternal inheritance of organelle genomes in eukaryotes has been proposed.
Indeed, in maternal inheritance with a posteriori exclusion, plastid DNA is degraded after the first pollen mitosis during pollen maturation (Miyamura et al., 1987; Nagata et al., 1 999a).
Actually, Poaceae belong to a species with cytoplasmic maternal inheritance (Hageman & Schroder, 1989), meaning that semi-autonomous organelles within both the vegetative and the generative cells are programmed to disappear at the end of pollen-tube germination.
The maternal trait is an unobserved, composite trait termed "maternal performance." The relationship between these causal components is depicted in the path diagrams of maternal inheritance described below.
In contrast, in Dickerson's (1947) model of maternal inheritance [ILLUSTRATION FOR FIGURE 1B OMITTED], the phenotypic value of the trait of interest ([P.sub.ox]) is influenced not only by Mendelian inheritance (described above), but also by other, unmeasured aspects of the maternal phenotype ([P.sub.mw]), where subscripts m and w refer to the maternal performance trait and the maternal generation, respectively.
Because the pedigree analysis suggested a maternal inheritance pattern, we investigated the function of the mitochondrial genome of family members.
To explore the evolution of the genetic variance and covariance in the case of nonadditive maternal inheritance, we can again use the model of selection defined in equation (3).
In the second scenario we have shown that directional selection on a trait with nonadditive maternal inheritance generates a genetic correlation between the direct and maternal genetic effects that is the same sign as the selection gradient.
Maternal inheritance of mitochondrial DNA in sexual crosses of Pythium sylvaticum.
The non-mendelian forms of heredity due to maternal genetic effects result in time lags in the evolutionary response to selection, while the rate and direction of evolution may depend on the inheritance of traits that are not under selection ("maternal inheritance": Kirkck and Lande, 1989; Lande and Kirkpatrick, 1990).
When M = 0 and b = 0, equation (7) reduces to Kirkpatrick and Lande's (1989) equation for maternal inheritance of a single trait.

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