Mitochondrial DNA diversity of the Sardinian local cattle stock
Petretto, Elena (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Dettori, Maria Luisa (University of Sassari. Department of Veterinary Medicine)
Pazzola, Michele (University of Sassari. Department of Veterinary Medicine)
Manca, Fabio (University of Sassari. Department of Veterinary Medicine)
Amills i Eras, Marcel (Centre de Recerca en Agrigenòmica)
Vacca, Giuseppe Massimo (University of Sassari. Department of Veterinary Medicine)

Data:	2022
Resum:	The aim of this research was to characterize the genetic diversity of the Sarda (Sa, n = 131), Sardo Bruna (SB, n = 44) and Sardo Modicana (SM, n = 26) cattle breeds, reared in the island of Sardinia (Italy). A portion of the mitochondrial DNA hypervariable region was sequenced, in order to identify a potential signature of African introgression. The F coefficients among populations ranged between 0. 056 for Sa vs SB and 0. 167 for SB vs SM. AMOVA analysis indicated there was a significant differentiation of the three breeds, although most of diversity was gathered at the within-breed level. The Median Joining Network of the Sardinian sequences showed a potential founder effect signature. A MJ network including Sardinian cattle plus African, Italian, Iberian and Asian sequences, revealed the presence of haplogroup T3, already detected in Sa cattle, and the presence of Hg T1 and Hg T1'2'3, in Sa and SB. The presence of a private haplotype belonging to haplogroup T1, which is characteristic of African taurine breeds, may be due to the introgression of Sardinian breeds with African cattle, either directly (most probable source: North African cattle) or indirectly (through a Mediterranean intermediary already introgressed with African blood).
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	DNA ; Evolution ; Genetics
Publicat a:	Scientific reports, Vol. 12 (February 2022) , art. 2486, ISSN 2045-2322

DOI: 10.1038/s41598-022-06420-3
PMID: 35169207

7 p, 2.0 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CRAG (Centre de Recerca en Agrigenòmica)
Articles > Articles de recerca
Articles > Articles publicats