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A heuristic two-dimensional presentation of microsatellite-based data applied to dogs and wolves

By Foerster Martin, Bunevich Aleksei N, Jedrzejewski Włodzimierz, Medugorac Ivica and Veit-Kensch Claudia E

Abstract

<p>Abstract</p> <p>Methods based on genetic distance matrices usually lose information during the process of tree-building by converting a multi-dimensional matrix into a phylogenetic tree. We applied a heuristic method of two-dimensional presentation to achieve a better resolution of the relationship between breeds and individuals investigated. Four hundred and nine individuals from nine German dog breed populations and one free-living wolf population were analysed with a marker set of 23 microsatellites. The result of the two-dimensional presentation was partly comparable with and complemented a model-based analysis that uses genotype patterns. The assignment test and the neighbour-joining tree based on allele sharing estimate allocated 99% and 97% of the individuals according to their breed, respectively. The application of the two-dimensional presentation to distances on the basis of the proportion of shared alleles resulted in comparable and further complementary insight into inferred population structure by multilocus genotype data. We expect that the inference of population structure in domesticated species with complex breeding histories can be strongly supported by the two-dimensional presentation based on the described heuristic method.</p

Topics: dog, microsatellite, genetic distance, two-dimensional presentation, Genetics, QH426-470, Biology (General), QH301-705.5, Science, Q, DOAJ:Genetics, DOAJ:Biology, DOAJ:Biology and Life Sciences, Animal culture, SF1-1100
Publisher: BioMed Central
Year: 2007
DOI identifier: 10.1186/1297-9686-39-4-447
OAI identifier: oai:doaj.org/article:1f58aaea5a8e43ddbb5fdbd18bb2cf9e
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