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Mitochondrial and SNP data analysis confirm the complex origin of Bazna pigs from Romania

AuthorsBâlteanu, Valentin Adrian; Figueiredo-Cardoso, T.; Amills, Marcel ; Zsolnai, A.
KeywordsBazna pigs
Mitochondrial DNA
Issue Date2019
Citation37th International Conference on Animal Genetics (2019)
AbstractBazna is a native pig breed from Romania with a black coat and white belt. It has a very tasty and marbled meat, which is much appreciated by the local consumers. The story of the Romanian Bazna breed goes back to 1872 when it is documented the first crossing between a Berkshire boar and Mangalitza sows in Transylvanian region. Subsequently these populations were infused in different episodes with cosmopolitan pig breeds. Currently there are 78 Bazna sows and 14 boars registered in the herd book. Therefore the historical data suggest an admixed origin of Bazna pigs. To verify this hypothesis we sequenced the mitochondrial Cytochrome b gene in Bazna versus Red Mangalitza and Vietnamese pigs. Additionally, using the Illumina Porcine SNP60 Bead-Chip, we have genotyped a larger panel of breeds i.e. Bazna pigs versus Mangalitza group (Red, Blonde and Swallow-belly) and a cosmopolitan group (Hampshire, Landrace, Large White and Pietrain). The NJ tree generated using mitochondrial DNA data evidenced 2 district clusters i.e. European (Mangalitza) and Asian (Vietnamese). Some of the Bazna pigs clustered tightly within the Mangalitza group, suggesting the maternal contribution of Mangalitza sows to Bazna breed formation, while some of them formed distinct sub-clusters, suggesting additional, but still European, maternal lineages. On the other hand, several Bazna pigs clustered in the Asian group, an observation which is consistent with the presence of Asian alleles in the contributing British breeds. By using SNP data we built an MDS plot, in which Bazna and Hampshire pigs occupied an intermediate position between the other 2 groups, one composed of Mangalitza pigs and the other one including cosmopolitan breeds. The Structure analysis indicated a probable contribution of Mangalitza pigs to the formation of the Bazna breed and at the same time it was evident the contribution of the British breeds, which is historically documented. Due to its superior meat quality Bazna pigs can well be the next fatty pig success story, after Iberian and Mangalitza breeds, if conservation and reproduction plans are implemented.
DescriptionResumen del póster presentado a la 37th International Conference on Animal Genetics (ISAG), celebrada en Lleida (España) del 7 al 12 de julio de 2019.
Appears in Collections:(CRAG) Comunicaciones congresos
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