Parents | GrandParents | G-GrandParents | G-G-GParents |
|---|---|---|---|
Quita's Bar Code | Fantasia's Coeur D'lion | Jumoke's Moonshiner | Jen-nell's Kris Kringle |
Anasazi Chatelaine Du Sienji | |||
Fantasia's Flambe | Fantasia's Fifth Amendment | ||
Gs Anasazi's Amy | |||
Akuaba's Quita Sizzler MC | Kazor's Vim N' Vigor At Sirius | Kibushi Get Sirius | |
Kazor's Sly Sassinak O'sunjata | |||
Akuaba's Bj Tempest | Akuaba's Tornado | ||
Kasai's Red I'm Not An Angel | |||
Jumoke's Superfecta | Jumoke's Arazi Re | Jamila's Madahiro Re | Jamila's Azizi Re |
Arabrac's Mountain Magic | |||
Bordeaux Sarah Barra | Rameses C-zar | ||
Anasazi Catch The Wind | |||
Jumokebaru Mischievous Sprite | Jumoke's Moonshiner | Jen-nell's Kris Kringle | |
Anasazi Chatelaine Du Sienji | |||
Baru's Gabrielle Of Jumoke | Fantasia's Fandango | ||
Jumoke's Red Vixen Of Baru |
Coefficient of Relationship -
References:
1. Genetics for the Animal Sciences, by L.D.VanVleck, E.J. Pollak, E.A.B.
Oltenacu; W.H.Freeman, pubs., 1987, pp 199 et seq.
2. E.J. Pollack, private correspondence: Computer implementation of Quaas-Henderson
procedure.
3. Introduction to Quantitative Genetics, by D.S. Falconer and T. Mackay,
4th ed., Addison Wesley Longman, pubs., 1989.
The total genetic covariance between two individuals consists of several
parts. The most important of these is the additive relationship which is a
measure of the fraction of genes shared by the two individuals. It is
a measure of the covariance of the breeding values of the two relatives. It
is important in devising weighting factors for records of
relatives in
genetic evaluation.
The additive relationship, Ryz, has a simple relationship to Wright's
coefficient of inbreeding, Fx. R can easily be calculated for two animals by
first calculating the hypothetical COI of an animal produced by mating
the two individuals (regardless of the sex of these assumed parents). The
additive relationship between the two animals is then calculated as twice
the COI of the hypothetical offspring.
Ryz = 2 Fx, where Fx is the coefficient of inbreeding of the hypothetical
offspring of individual Y and individual Z.
The additive relationship has a minimum value of zero and a maximum value of
two.
Additive relationship is twice the value of the coefficient of kinship
(which is sometimes called the coancestry or coefficient of consanguinity).
The kinship of any two individuals is
identical to the inbreeding coefficient of their progeny if they were mated.
It is the probability that alleles drawn randomly from gametes of each of
the two individuals are identical by
descent.
The Coefficient of Relationship is a measure of relationship that has a
minimum value of zero and a maximum value of one. It is equivalent to the
correlation between breeding
values of the two animals, For noninbred animals, the coefficient of
relationship is the same as the additive relationship. In general, the
coefficient of relationship is:
Ryz/ [ (1 + Fy)(1 + Fz) ]^.5
where ^ denotes exponentiation and Fy and Fz are the inbreeding coefficients
of animals Y and Z, respectively.