Figure 1.

Phylogenetic classification of (putative) sugar transporters from various yeast and fungal hosts. The phylogenetic tree contains 51 transporter sequences in total; the names of the eight transporters characterized in this study are marked in red. (Putative) main sugar specificities of the transporters are marked by the colour of the branches, with red for glucose, orange for xylose, blue for cellobiose, longer cellodextrins, and lactose, and green for maltose and maltotriose. Transporters with a reported ability to transport cellobiose have been marked with *. Numbers at the nodes represent percentage bootstrap values based on 500 samplings. The abbreviation of each species is added in front of the name of the transporter genes: aory =   Aspergillus oryzae, afla = Aspergillus flavus, anid =   Aspergillus nidulans, anig = Aspergillus niger, fgra = Fusarium graminearum, klac = Kluyveromyces lactis, lsta = Lipomyces starkeyi, ncra = Neurospora crassa, poxa = Penicillium oxalicum, ppla = Postia placenta, psti = Pichia stipitis, scer = Saccharomyces cerevisiae, thar = Trichoderma harzianum, tree = Trichoderma reesei and tter = Thielavia terrestris.