Figure 1.

Phylogenetic Analysis of CHS and CHSL Protein Sequences from Land Plants.

Sequences retrieved from the complete genome sequences of Arabidopsis (At), poplar (Poptr), rice (Os), and Physcomitrella (Pp), as well as selected sequences from Silene (St), pine (Pr), and N. sylvestris (Ns) were included in the maximum-likelihood tree built using 1000 bootstrap replicates in PhyML 2.4.4. Bootstrap values are indicated on branches (out of 100). The Arabidopsis PKSA and PKSB proteins are highlighted (ovals). The proteins encoded by genes known to be expressed in tapetum cells during anther development are indicated by a flash. Protein sequences used in this analysis are given in Supplemental Data Set 1 online, and the alignment is available in Supplemental Data Set 2 online. Bar = 0.1 amino acid substitutions.

[See online article for color version of this figure.]