Estimation of the proportion of triploids in populations with diploid and triploid individuals.

Détails

ID Serval
serval:BIB_9348590ACEC4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Estimation of the proportion of triploids in populations with diploid and triploid individuals.
Périodique
Journal of Heredity
Auteur⸱e⸱s
Krieger M.J., Keller L.
ISSN
0022-1503
Statut éditorial
Publié
Date de publication
06/1998
Peer-reviewed
Oui
Volume
89
Numéro
3
Pages
275-279
Langue
anglais
Notes
Publication types: Journal Article
Résumé
Populations with diploid and triploid individuals co-occur in various plant and animal species, but detecting their relative frequencies is problematic. Microsatellite markers can be used to detect triploids that have three distinct alleles at a given locus, but cannot identify triploids that are partially or fully homozygous (i.e., possessing two or three copies of the same allele). Detection of partially homozygous triploids is sometimes possible with allozymes if no dosage compensation occurs. However, the inference of triploidy from uneven band intensities is not always reliable, making it difficult to estimate the actual proportion of triploids in a population. We present an iterative mathematical procedure for estimating the overall proportion of triploids from allozyme and microsatellite data. This method also estimates corrected allele frequencies by accounting for potentially hidden cases of homozygosity occurring in triploid individuals with multiple copies of an allele.
Mots-clé
Alleles, Animals, Chromosome Mapping, Confidence Intervals, Gene Frequency, Models, Genetic, Plants/genetics, Ploidies
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/01/2008 19:39
Dernière modification de la notice
20/08/2019 15:56
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