Lucía Perez-Pardal (CIBIO-InBIO/UP) | June 6, 2014 | 14h30 | CIBIO’s Auditorium, Campus de Vairão

 

Y-chromosome variation studies can be a very interesting tool, like the mDNA, to infer the population genetic history of the domestic species. In my talk I will explain the main results obtained from the use of Y-chromosome markers to reconstruct the world-wide evolutionary history of the domestic cattle. The main outcome is that all the diversity found in Y-chromosome of modern cattle results from three large paternal lineages, with Bos taurus lineage showing two of these lineages (Y1 and Y2) and the more tropical adapted lineage, B. indicus, displaying the third one (Y3). Although all the modern B. indicus fall-in the same lineage, at a closer looking, we have found evidence for a strong sub-structuring of this lineage with cryptic sub-lineages.

 

 

Lucía received her PhD. from University of Santiago de Compostela under the supervision of Félix Goyache and Luis J. Royo, defending a thesis on the worldwide genetic variability of Y-chromosome of domestic ruminants. She did a one year post-doc looking for structural variations and selective sweeps in the bovine genome, at the university of Liege in the unit of animal genetics (Michel Georges), under the supervision of Tom Druet. Her main research area is on Evolutionary Biology. Understanding the dynamics of evolution is fundamental to our understanding of genome biology and evolution, species origin, survival and adaptation. For future work, she will undertake research approaches using the cattle whole genome to estimate the proportion of variation that only exists in Iberian local breeds and clarify the relationship between taurine cattle breeds from Iberian Peninsula and Africa. Lucía recently joined the AGRIGENOMICS group as a pos-doctoral fellow from FCT.

 

[Group Leader: Albano Beja-Pereira, Livestock Genomics and Conservation]

 

Image credits: AGRIGENOMICS; 2014