Genome-Wide Evolutionary Analysis of Natural History and Adaptation in the World`s Tigers (Current Biology)

Liu et al. provide genome-wide evidence for the tiger`s origin and evolution. They trace the coalescence time for modern tigers to 110 kya and affirm highly restricted gene flow supporting six living subspecies. They also identify signals of positive selection in the Sumatran tiger likely associated with smaller body size and thus adaptation to the tropical Sunda Islands.