Fig. 2

Phylogenetic tree of blueberry (Vaccinium corymbosum), Arabidopsis thaliana, tobacco (Nicotiana tabacum), rice (Oryza sativa), grape (Vitis vinifera), and bilberry (Vaccinium darrowii) SPL proteins. Clades with different colors represent diverse subgroups. They were divided into 6 groups according to the evolutionary tree and were represented by different colours. The different icons represent the SPL genes of different species, with red pentagrams representing blueberry, green circles representing Arabidopsis, dark blue circles representing tobacco, cyan circles representing rice, light blue triangles representing grape, and yellow squares representing bilberry