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A new view on dam lines in Polish Arabian horses based on mtDNA analysis

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Author(s): Głażewska Iwona | Wysocka Anna | Gralak Barbara | Prus Renata | Sell Jerzy

Journal: Genetics Selection Evolution
ISSN 0999-193X

Volume: 39;
Issue: 5;
Start page: 609;
Date: 2007;
Original page

Keywords: mitochondrial DNA | horse | pedigree | phylogeny

ABSTRACT
Abstract Polish Arabian horses are one of the oldest and the most important Arab populations in the world. The Polish Arabian Stud Book and the Genealogical Charts by Skorkowski are the main sources of information on the ancestors of Polish Arabs. Both publications were viewed as credible sources of information until the 1990s when the data regarding one of the dam lines was questioned. The aim of the current study was to check the accuracy of the pedigree data of Polish dam lines using mtDNA analysis. The analyses of a 458 bp mtDNA D-loop fragment from representatives of 15 Polish Arabian dam lines revealed 14 distinct haplotypes. The results were inconsistent with pedigree data in the case of two lines. A detailed analysis of the historical sources was performed to explain these discrepancies. Our study revealed that representatives of different lines shared the same haplotypes. We also noted a genetic identity between some lines founded by Polish mares of unknown origin and lines established by desert-bred mares.
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