random mating


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

ran·dom mat·ing

a practice of mating in which any egg has an equal opportunity of being fertilized by any sperm; thus the chance of one genotype at a particular locus combining with another genotype at that locus is random.
Synonym(s): panmixis

random mating

Etymology: ME, randoun, run violently, gemate
a pairing of subjects when each individual has an equal chance of mating with those of other genetic backgrounds.

ran·dom mat·ing

(ran'dŏm māt'ing)
A practice of mating in a population in which at some specified locus mating patterns occur with expected frequencies predicted by the product of the frequencies of the genotypes in the population.

random mating

or

panmixis

the selection of mates by chance so that the choice of a partner is not influenced by the genotypes under study. For example, it is normal for human beings to display random mating with respect to the ABO BLOOD GROUP, but ASSORTATIVE MATING with respect to other genetically controlled characteristics, such as body shape.

random

unplanned, without direction or purpose.

random assignment
random mating
where each member of the population has an equal opportunity of mating with every member of the opposite sex.
random numbers
a list of numbers obtained by a standard randomization procedure; used commonly to select individual animals from a pack.
random sample
see random sample.
random sampling
a procedure for selecting units from a group in such a way that each unit has an equal chance of being selected in the sample.
random selection
selection in such a way as to produce a random sample.
random variable
a group or quantity that takes various values, each with varying probabilities.
References in periodicals archive ?
Assumptions made in modeling the transmission of QTL in this experiment include diploid Mendelian inheritance and negligible natural selection or genetic drift during the process of random mating and selfing.
Observed index significantly departs from random mating (ISI) or equal performance of each sex (MRPI and FRPI) ([chi square] test, a = 0.
Deviations from a 1:1 random mating were examined by a chi-square test with one degree of freedom after correction for continuity (Sokal and Rolfh 1981).
Random mating then restores the original distributions that were present at the beginning of the generation.
Since one of our interests was the effect of deviation from random mating and HWE on the accuracy of parentage tests, the effect of genotyping errors was not considered to prevent it from masking the former effect.
The effects of the second-chromosome inversions on DT and TL were estimated using the multivariate genetic model proposed by Ruiz and Barbadilla (1995) to analyze the contribution of an arbitrary number of multiallelic loci upon any number of quantitative traits in a random mating population.
Furthermore, probability models, by themselves, do not designate appropriate mating and reproductive systems such as cross-pollination (panmixia), mixed self and random mating, full-sibs (chain crosses and paired plant crosses), half-sibs (random pollen pollination), and self-fertilization, that could, under specific circumstances, maximize the genetic representativeness of a sample.
This allows the use of Fisher's (1941) concepts of average effect of an allele substitution and average excess, which are equivalent and easily defined under random mating.
Casady, Kansas State University, that had undergone random mating and selection for at least 3 cycles before 1984.
Finally, we consider an array of sexual mating systems, including those common in many plant species: complete random mating, random mating with separate sexes, and obligate and partial self-fertilization.
1] selections from Lincoln nursery were advanced for random mating with equal maternal representation at Mead in 1992.
If we provisionally accept this (admittedly crude) estimate, models can be tested that assume random mating by females, such that female mating successes are either Poisson or binomially distributed (Sutherland 1985).