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Genetics Selection Evolution

Open Access

Genetic variation in two conserved local Romanian pig breeds using type 1 DNA markers

  • Daniel C Ciobanu1, 2Email author,
  • Andrew E Day3,
  • Alexandru Nagy4,
  • Richard Wales3,
  • Max F. Rothschild2 and
  • Graham S. Plastow3
Genetics Selection Evolution200133:417

Received: 7 August 2000

Accepted: 20 February 2001

Published: 15 July 2001


Analysis of the genetic variation of an endangered population is an important component for the success of conservation. Animals from two local Romanian pig breeds, the Mangalitsa and Bazna, were analysed for variation at a number of genetic loci using PCR-based DNA tests. Polymorphism was assessed at loci which 1) are known to cause phenotypic variation, 2) are potentially involved in trait differences or 3) are putative candidate genes. The traits considered are disease resistance, growth, coat colour, meat quality and prolificacy. Even though the populations are small and the markers are limited to specific genes, we found significant differences in five of the ten characterised loci. In some cases the observed allele frequencies were interesting in relation to gene function and the phenotype of the breed. These breeds are part of a conservation programme in Romania and marker information may be useful in preserving a representative gene pool in the populations. The use of polymorphisms in type 1 (gene) markers may be a useful complement to analysis based on anonymous markers.


piggenetic diversitylocal breeds

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Authors’ Affiliations

Animal Genetics Unit, University of Agricultural Sciences and Veterinary Medicine, Cluj Napoca, Romania
Department of Animal Science, Iowa State University, Ames, USA
PIC International Group, Fyfield Wick, UK
Agricultural Research Station of Turda, Romania


© INRA, EDP Sciences 2001