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Phylogenetic Status of F. hindsii among Citrinae Group. The phylogenetic tree of nine Citrinae indicates their evolutionary relationships and estimated divergence time. Hongkong kumquat (F. hindsii) shows close relationship with mandarin species (C. reticulata). The tree topology was constructed by using 5848 conserved genes shared by these nine genomes. The number at each node denotes the estimated divergence time. Bar = 1.0 millions of years.
