Daniele Salvi and Matteo Garzia contributed to the study conception and design. All authors performed sample collection and preparation. Genetic data collection and analysis were performed by Matteo Garzia, Nathan Delcour, and Daniele Salvi. The first draft of the manuscript was written by Nathan Delcour, Matteo Garzia, and Daniele Salvi and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.