Fig. 4: Phylogenetic analysis of MADS-box genes from P. bournei, C. kanehirae, and A. thaliana.
From: The Phoebe genome sheds light on the evolution of magnoliids

The gene ID numbers begin with “Pb” to represent the gene IDs of P. bournei, “Ck” to represent the gene IDs of C. kanehirae, and “AT” to represent the gene IDs of A. thaliana