Simple allelic-phenotype diversity and differentiation statistics for allopolyploids.

Détails

ID Serval
serval:BIB_37D5BE9CD113
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Simple allelic-phenotype diversity and differentiation statistics for allopolyploids.
Périodique
Heredity
Auteur(s)
Obbard D.J., Harris S.A., Pannell J.R.
ISSN
0018-067X (Print)
ISSN-L
0018-067X
Statut éditorial
Publié
Date de publication
2006
Peer-reviewed
Oui
Volume
97
Numéro
4
Pages
296-303
Langue
anglais
Résumé
The analysis of genetic diversity within and between populations is a routine task in the study of diploid organisms. However, population genetic studies of polyploid organisms have been hampered by difficulties associated with scoring and interpreting molecular data. This occurs because the presence of multiple alleles at each locus often precludes the measurement of genotype or allele frequencies. In allopolyploids, the problem is compounded because genetically distinct isoloci frequently share alleles. As a result, analysis of genetic diversity patterns in allopolyploids has tended to rely on the interpretation of phenotype frequencies, which loses information available from allele composition. Here, we propose the use of a simple allelic-phenotype diversity statistic (H') that measures diversity as the average number of alleles by which pairs of individuals differ. This statistic can be extended to a population differentiation measure (F'ST), which is analogous to FST. We illustrate the behaviour of these statistics using coalescent computer simulations that show that F'ST behaves in a qualitatively similar way to FST, thus providing a useful way to quantify population differentiation in allopolyploid species.
Mots-clé
Alleles, Biometry, Data Interpretation, Statistical, Genetic Variation, Genetics, Population/statistics & numerical data, Genotype, Models, Genetic, Phenotype, Plants/genetics, Polyploidy
Pubmed
Web of science
Open Access
Oui
Création de la notice
20/09/2011 8:44
Dernière modification de la notice
20/08/2019 14:26
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