Fig. 1.

Sequence diversity in A. thaliana PHYB. (A) Amino acid changes in A. thaliana PHYB. A schematic diagram of PHYB domains is shown, with arrows indicating each amino acid polymorphism. The table below indicates the specific amino acid change. The amino acid to the left of the number indicates the residue in the reference sequence from the Columbia (Col-0) accession. (B) Maximum likelihood phylogenetic tree, based on nucleotide sequence, showing PHYB divergence in A. thaliana. Bold italic numbers indicate where amino acid variants separate different branches. Plain text numbers in smaller font indicate bootstrap support.