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inbreeding
(redirected from Inbreeding depression)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
inbreeding /in·breed·ing/ (-brēd-ing) the mating of closely related individuals or of individuals having closely similar genetic constitutions.
in·breed·ing (nbrdng)
n.
1. See homogamy.
2. The continued breeding of closely related individuals so as to preserve desirable traits in a stock.

inbreeding
[in′brēding]
Etymology: L, in, within; AS, bredan, to reproduce
the production of offspring by the mating of closely related organisms, the most extreme form being self-fertilization, which occurs in certain plants and animals. Inbreeding increases the chance that recessive alleles for both desirable and undesirable traits will become homozygous and be expressed phenotypically. In humans the amount of inbreeding in a specific population is largely controlled by tradition and cultural practices. Inbreeding is a standard agricultural method for developing desirable genotypes and pure lines in plants and animals. Compare outbreeding.

inbreeding [in´brēd-ing]
the mating of closely related individuals or of individuals having closely similar genetic constitutions.

inbreeding,
n the production of offspring by the mating of closely related individuals, organisms, or plants; self-fertilization is the most extreme form, which normally occurs in certain plants and lower animals. The practice provides a greater chance for recessive genes for both desirable and undesirable traits to become homozygous and to be expressed phenotypically.

inbreeding
the mating of closely related organisms or of organisms having closely similar genetic constitutions.

inbreeding coefficient
the probability that the two genes present at a locus in that individual are identical by descent.
inbreeding depression
depression of performance caused by inbreeding.


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Testing for Inbreeding and Inbreeding Depression The hierarchical F-statistics referred to earlier in the text can also be thought of as different types of "inbreeding coefficients" that differ only in terms of the randomly mating reference population to which they are compared.
Ashman said that if they take into account inbreeding depression in hermaphrodites, a gradual decline in the number of hermaphroditic plants is to be expected.
During the 1930''s, the horses began showing signs of inbreeding depression however, which caused a deterioration of performance.
 
 
 
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