Coefficients of Inbreeding and Relationship

@article{WrightCoefficientsOI,
  title={Coefficients of Inbreeding and Relationship},
  author={Sewall Wright},
  journal={The American Naturalist},
  volume={56},
  pages={330 - 338}
}
IN the breeding of domestic animals consanguineous matings are frequently made. Occasionally matings are made between very close relatives-sire and daughter, brother and sister, etc.-but as a. rule such close inbreeding is avoided and there is instead an attempt to concentrate the blood of some noteworthy individual by what is known as line breeding. No regular system of mating such as might be followed with laboratory animals is practicable as a rule. The importance of having a coefficient by… Expand
PRELIMINARY OBSERVATIONS : INBREEDING IN DAIRY GOATS AND ITS EFFECTS ON MILK PRODUCTION
When two related individuals are mated, they produce an inbred offspring. Inbreeding tends to increase homozygosity in the population. In 1922, a geneticist by the name of Sewell Wright developed aExpand
A Ten Year Inbreeding Experiment in the Domestic Fowl
TLDR
Probably the greatest practical use of inbreeding has been made by corn geneticists, who have built the present program of corn improvement around a program of intensive inbreeding following by cross-breeding. Expand
Inbreeding and its avoidance in a wild bird population
TLDR
This thesis demonstrates that inbreeding has deleterious effects on a wild population of birds, occurring throughout an individual’s life, and is of varying strength across environments, and shows that the variation in the strength of inbreeding depression varies across environments. Expand
Inbreeding, its Effects and Applications in Animal Genetics and Breeding: A Review
Inbreeding is the mating of more closely related animals than the average members of the breed. Offspring resulting from such a mating are then said to be inbred. They have one or more ancestor inExpand
Runs of Homozygosity and Genomic Inbreeding Concepts in Dairy Animal Breeding
Inbreeding, the method of mating of genetically related individuals of a population as described by Wright, in 1922 is a vital tool in population genetic study of farm animal breeding researches asExpand
The relative effects of inbreeding and outbreeding on reproduction in the domestic fowl
This study of the relative effects of inbreeding and outbreeding on reproduction in the domestic fowl is based on two years’ observations of triallel matings of hens having an inbred, outbred, andExpand
Inbreeding coefficients of the Ramah Navaho population.
TLDR
The types, and a measure of the degree, of inbreeding in the Ramah Navaho population as of September first 1948 are described and a number of estimates based on various sorts of cousin marriages are available for human populations. Expand
The Effect of Inbreeding on Reproductive Fitness of S. C. W. Leghorns
TLDR
The present study aims to throw some light on the accuracy of computed increases in homozygosity under inbreeding (the inbreeding coefficients), which is of particular importance in the production of inbred lines. Expand
The Variation With in an Inbred Line of S. C. W. Leghorns
TLDR
A point of interest and of some importance is that concerning reduction of variability within an inbred line as the inbreeding progresses, with consequent small reduction of the total variation even in a stock relatively homozygous. Expand
Effects of inbreeding and selection in a closed holstein-friesian herd.
TLDR
Weight and body measurements both showed a detrimental effect of inbreeding, but the reduction of weight and measurements due to inbreeding decreased with increasing age, which may be due, in part, to the indirect selection of larger cows that tend to have lower coefficients of in breeding. Expand
...
1
2
3
4
5
...