Paleogenomic insights into the dispersal of domestic cats into Europe and selection patterns over time

Zooarchaeological and genetic evidence from the last two decades demonstrated that domestic cats originated from the North African and Near Eastern wildcat, Felis lybica lybica. The commensal relationship between humans and cats started about 11 thousand years ago in the Neolithic Levant. Recent paleogenomic evidence showed that cats were introduced to Europe several millennia later, in the Roman era. Yet, archaeozoological and ancient mitochondrial DNA data from northwest Europe suggest that domestic cats were already present in this region in the 1st millennium BCE, in Iron Age settlements. Until now, only three cats from Europe dated to this period have been analysed at the nuclear level, thus leaving uncertainty on the times and circumstances of the human mediated dispersal of domestic cats into Europe. To address that, we analysed the DNA of 30 cat remains dated from the Bronze Age to the Roman era from northern and western Europe. We built double-stranded genomic libraries and generated low-coverage genome-wide data via shotgun sequencing. The temporal transect of genomic variation that we reconstructed made it possible to refine the timing of the introduction of the domestic cat to Europe. In addition, to investigate patterns of selection in the history of cat domestication, we show here the preliminary results of the analysis of cat phenotypic variants across time and place, with a particular focus on the sex-linked orange coat colour.

EN, Abstract of an Oral Presentation or a Poster