A model-based method for identifying species hybrids using multilocus genetic data.
Genetics
; 160(3): 1217-29, 2002 Mar.
Article
em En
| MEDLINE
| ID: mdl-11901135
ABSTRACT
We present a statistical method for identifying species hybrids using data on multiple, unlinked markers. The method does not require that allele frequencies be known in the parental species nor that separate, pure samples of the parental species be available. The method is suitable for both markers with fixed allelic differences between the species and markers without fixed differences. The probability model used is one in which parentals and various classes of hybrids (F(1)'s, F(2)'s, and various backcrosses) form a mixture from which the sample is drawn. Using the framework of Bayesian model-based clustering allows us to compute, by Markov chain Monte Carlo, the posterior probability that each individual belongs to each of the distinct hybrid classes. We demonstrate the method on allozyme data from two species of hybridizing trout, as well as on two simulated data sets.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hibridização Genética
/
Modelos Genéticos
Tipo de estudo:
Health_economic_evaluation
/
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2002
Tipo de documento:
Article