Principal Investigator: David Comas Principal Investigator: David Comas

 

Research lines Research lines

The interests of our research are focused on the human genome diversity analysis in order to infer the (genomic and population) processes responsible for this diversity and try to establish the (population and epidemiological) consequences of the human genetic variability. Thus, our main research lines are focused on aspects of human genome diversity, population genetics, genome variation and disease susceptibility, and genome evolution and disease.

 

Population processes

Concerning population processes that have modeled the human genetic diversity, we have focused our research on the use of molecular tools to reconstruct the human population history through the phylogeny of genetic markers. Our interest has been focused on the genetic consequences at population level of human migrations and admixtures. The use of well-established phylogenies in the mitochondrial and Y-chromosome human genomes allowed us to unravel the population history of several populations. Nonetheless, we have recently used whole genome variation in the autosomes in order to establish the structure of human populations.

 

Genomic processes 

Concerning genomic processes that have modeled the human genetic diversity, our research has have been focused on the relationship between human diversity and complex traits, including complex diseases. The genetic analysis in human populations of genes of biomedical interest might shed light on the evolution of these genes. In this context, we have focused our research in the analysis of genes that have been previously associated to complex diseases, such as psychiatric and immunological diseases. The analysis of these genes has allowed us to conclude that some of the failures in replicating genetic associations are due to extreme genetic differences between populations. In addition, we are also interested in other complex traits, such as height, not directly related to disease.

 

Lab website: Comas Lab

News News

Principal Investigator Principal Investigator

Current members Current members

Publications since 2011 Publications since 2011

Viscardi L.H., Paixão-Côrtes V.R., Comas D., Salzano F.M., Rovaris D., Bau C.D., Amorim C.E.G., Bortolini M.C. 2018. Searching for ancient balanced polymorphisms shared between Neanderthals and modern humans. Genetics and Molecular Biology. 41(1):67-81 doi: 10.1590/1678-4685-gmb-2017-0308

Font-Porterias, N.; Solé-Morata, N.; Serra-Vidal, G.; Bekada, A.; Fadhlaoui-Zid, K.; Zalloua, P.; Calafell, F.; Comas, D. (2018) The genetic landscape of Mediterranean North African populations through complete mtDNA sequences. Annals of Human Biology. 45(1):98-104 doi: 10.1080/03014460.2017.1413133


Comas, D.; Luiselli, D.; Rickards, O. (2018) Human population genetics of the Mediterranean. Annals of Human Biology. 45(1):1-4 doi: 10.1080/03014460.2017.1416909


Solé-Morata, N.; García-Fernández, C.; Urasin, V.; Bekada, A.; Fadhlaoui-Zid, K.; Zalloua, P.; Comas, D. & Calafell, F. Whole Y-chromosome sequences reveal an extremely recent origin of the most common North African paternal lineage E-M183 (M81) Scientific Reports 7, Article number: 15941(2017) doi:10.1038/s41598-017-16271-y


Reales G.; Rovaris D.L.; Jacovas V.C.; Hünemeier T.; Sandoval J.R.; Salazar-Granara A.; Demarchi D.A.; Tarazona-Santos E.; Felkl A.B.; Serafini M.A.; Salzano F.M.; Bisso-Machado R.; Comas D.; Paixão-Côrtes V.R.; Bortolini M.C. 2017. A tale of agriculturalists and hunter-gatherers: Exploring the thrifty genotype hypothesis in native South Americans. American Journal of Physical Anthropology. 163(3):591-601


Ongoing projects Ongoing projects

In the media In the media

On the publication of the paper "Whole Y-chromosome sequences reveal an extremely recent origin of the most common North African paternal lineage E-M183 (M81)", with the participation of Neus Solé-MorataFrancesc Calafell and David Comas.

1st December 2017:

El 70% dels magrebins descendeixen d'un avantpassat comú que va viure fa 2.500 anys, CCMA.

El 70% de los hombres del Magreb desciende de un antepasado común que vivió hace 2.500 años, Europapress

Un tatarabuelo norteafricano, National Geographic


28th April, 2017. La Vanguardia. "Hallados los genes que permiten a los tibetanos sobrevivir a 4.000 metros" (with the participation of David Comas)


On the publication of the article "Genetic signature of natural selection in first Americans", with the participation of David Comas:


On the publication of the article "Recent Historical Migrations Have Shaped the Gene Pool of Arabs and Berbers in North Africa", with the participation of David Comas:


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