inbreeding coefficient


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Related to inbreeding coefficient: Wright's inbreeding coefficient

inbreeding coefficient

[′in‚brēd·iŋ ‚kō·ə‚fish·ənt]
(genetics)
A measure of the rate of inbreeding or the degree to which an individual is inbred. Also known as Wright's inbreeding coefficient.
References in periodicals archive ?
The mean increase in the inbreeding coefficient ([DELTA][F.sub.a]) considering the three simulated scenarios (Table 2) was slightly lower for population B (0.0058) compared with population A (0.0061).
WOMBAT was also used to estimate inbreeding coefficients [4] based on the algorithm proposed by Tier [5] for implementation of the tabular method.
In this study, we were not able to evaluate contemporary gene flow, but results of inbreeding coefficient suggest that the chance of outside gene flow of M.
Ten individuals from six locations between Virginia and Northern Florida were collected to estimate the inbreeding coefficients ([F.sub.ST], [F.sub.Is]) and selfing rate (s) across the range of their distribution.
Indeed, the Kenai Peninsula does have a higher inbreeding coefficient (although not significantly different from zero) and higher levels of homozygosity.
where A is a common ancestor of a and b, PP is a set of non-overlapping path-pairs [??][P.sub.Aa], [P.sub.Aa][??] from A to a and b, r is the length of the path [P.sub.Aa], s is the length of the path [P.sub.Ab], and [F.sub.A] is the inbreeding coefficient of A.
In this study, the inbreeding coefficient was higher in the HIV-negative control group, the present data suggesting that the risk of HIV-1 infection decreased as a function of inbreeding coefficient ([Chi.sup.2]=7.531, p=0.006).
Out of total 7345 animals 766 (10.43%) were found inbred (756 females and 10 sires) with average inbreeding coefficient 5.33% whereas overall inbreeding coefficient was 0.56%.
Sample size (n), average number of alleles (A), allelic richness (Ar; based on 24 individuals), observed heterozygosity (Ho), expected heterozygosity (He), inbreeding coefficient ([F.sub.IS]), corrected [F.sub.IS], number of private alleles, and frequency of null alleles (Null %) calculated using 10 microsatellite markers in the 8 Pacific oyster (Crassostrea gigas) populations.
In this bromeliad population a mean inbreeding coefficient showed a deficiency of heterozygotes (FIS = 0.57 [+ or -] 0.11 SD).