The Citrus evolutionary tree is made of three main branches: the citron/Australian species, the pummelo/micrantha and the papeda/mandarins. The Citrus ancestors were generated in a succession of speciation events occurring between 7.5-6.3 Mya, followed by a second radiation (5.0-3.7 Mya) that separated citrons from Australian species, and finally, Micrantha from Pummelos and Papedas from mandarins. Further radiation of Fortunella,