TAILIEUCHUNG - Báo cáo sinh học: " A new view on dam lines in Polish Arabian horses based on mtDNA analysis"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: A new view on dam lines in Polish Arabian horses based on mtDNA analysis | Genet. Sel. Evol. 39 2007 609-619 Available online at INRA EDP Sciences 2007 DOI gse 2007025 Original article A new view on dam lines in Polish Arabian horses based on mtDNA analysis Iwona GLAZEWSKAa Anna WYSOCKAa Barbara GRALAKb Renata PRUSa Jerzy SELLa a Department of Genetics and Cytology University of Gdansk Kladki 24 80-822 Gdansk Poland b Polish Academy of Sciences Institute of Genetics and Animal Breeding Jastrzebiec 05-552 Wólka Kosowska Poland Received 5 December 2006 accepted 9 March 2007 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. mitochondrial DNA horse pedigree phylogeny 1. INTRODUCTION Polish Arabian horses are one of the oldest and most important Arab populations in the world. The first stud described in historical sources was established in 1778 16 . Nineteenth century studs were located in the southeast region of historical Poland which corresponds now to the Ukrainian territory. The foundation breeding material was of a different origin. The Biaỉa .

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