Maximum parsimony tree comparing glpD, glpK, and glpX amongst biovar Orientalis isolates rooted to biovar Antiqua strain E1979001. Branch bootstrap values calculated from 200 replicates. A. Acquisition of the 93 bp in-frame glpD deletion and GlpD missense mutation (A125V); B. glpK poly(A) region insertion; C. glpKX pseudogene; D. glpK poly(A) region deletion. 1 PY strains 01–05; 2 AS20090 strains 1156, 1434, 1509, 1539, 2147; 3 BA20090 strains 1703, 1799, 1990, 2009; 4 PY strains 19, 71, 72, 76.