Exact Inbreeding Coefficient and Effective Size of Finite Populations under Partial Sib Mating
AUTOR(ES)
Wang, J.
RESUMO
An exact recurrence equation for inbreeding coefficient is derived for a partially sib-mated population of N individuals mated in N/2 pairs. From the equation, a formula for effective size (N(e)) taking second order terms of 1/Ninto consideration is derived. When the family sizes are Poisson or equally distributed, the formula reduces to N(e) = [(4 - 3β)N/(4 - 2β)] + 1 or N(e) = [(4 - 3β)N/(2 - 2β)] - 8/(4 - 3β), approximately. For the special case of sib-mating exclusion and Poisson distribution of family size, the formula simplifies to N(e) = N + 1, which differs from the previous results derived by many authors by a value of one. Stochastic simulations are run to check our results where disagreements with others are involved.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1206561Documentos Relacionados
- On the Theory of Partially Inbreeding Finite Populations. II. Partial Sib Mating
- Effective Size of Nonrandom Mating Populations
- Effective Size of Populations under Selection
- On the Theory of Partially Inbreeding Finite Populations. I. Partial Selfing
- On the Theory of Partially Inbreeding Finite Populations. III. Fixation Probabilities under Partial Selfing When Heterozygotes Are Intermediate in Viability