Fig. 4

Phylogeny for MAT1-1 idiomorphs of various Aspergillus species reveals patterns of ancestry for this locus. A maximum likelihood phylogeny was inferred for the MAT1-1 gene of six Aspergillus species (top image). Also included is an amino acid alignment of the MAT1-1 gene for the same six species that was generated using CLUSTAL-W (bottom image). Beneath each column are characters that relate to the level of conservation in amino acid substitutions among the different species. An asterisk (*) indicates that an identical amino acid residue exists for all species examined; a colon (:) indicates that at least one highly conserved amino acid substitution exists; a period (.) indicates that at least one semi-conserved substitution exists; and no character indicates that at least one un-conserved amino acid substitution exists. The black inverted arrow indicates the location of a 52 bp intron separating the two coding regions that comprise the MAT1-1 gene in these organisms