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.

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.

maternal inheritance

the transmission of traits or conditions controlled by cytoplasmic factors within the ovum that are not self-replicating and are determined by genes within the nucleus. An example of such a characteristic is the direction of coiling in the shells of snails. Also called maternal effect.

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.

maternal inheritance

a form of CYTOPLASMIC INHERITANCE in which genes are passed to the offspring from the female only.

inheritance

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.
Mendelian inheritance is the basis of all genetic practice, but it has limitations in explaining the small differences that occur in a range of offspring of similar and related matings. Galtonian genetics deals specifically with this problem and is better fitted as a tool in population genetics and in dealing with characters that are dependent on a number of chromosomal loci rather than on a single locus.

autosomal inheritance
controlled by genes located on autosomes.
intermediate inheritance
inheritance in which the phenotype of the heterozygote falls between that of either homozygote.
maternal inheritance
the transmission of characters that are dependent on peculiarities of the egg cytoplasm produced, in turn, by nuclear genes.
X-linked inheritance
References in periodicals archive ?
1982) Epifluorescent microscopic evidence for maternal inheritance of chloroplast DNA.
During gamete fusion, nuclease C obtains access to unprotected male plastids and digests the male plastid DNA, leading to maternal inheritance of plastid DNA.
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.
Chloroplast DNA deletions associated with wheat plants regenerated from pollen: Possible basis for maternal inheritance of chloroplasts.
Thus, the underlying structure of maternal inheritance influences the direction and rate of adaptive evolution.
In contrast in natural populations, empirical estimates of the specific causal variance components determining maternal inheritance are generally lacking.
In this paper, I present a quantitative genetic analysis of maternal effects and estimate the causal variance components relevant to maternal inheritance for several traits throughout the life cycle in a natural plant population.
data), suggesting the likelihood of maternal inheritance early in the life cycle.
To estimate maternal inheritance, I measured the same trait in the G2 and G3 generations: 10 traits at four stages in the life cycle in the greenhouse or four traits at three stages in the field (Table 2).
I estimated six of the nine causal components relevant to maternal inheritance (Table 1), additive ([Mathematical Expression Omitted], [Mathematical Expression Omitted], [[Sigma].
With nonadditive maternal inheritance, selection affecting the variance and covariance of traits could favor the divergence of the population into distinct groups (i.
Lastly, while we examine only "pure" forms of maternal inheritance (i.

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