Figure 2: Conservation and diversity of fungal TER intron sequence.
From: Prevalent and distinct spliceosomal 3′-end processing mechanisms for fungal telomerase RNA
(a) Sequence conservation of filamentous fungal TER introns. Consensus sequences of 5′-SS, BPS and 3′-SS are derived from a multiple sequence alignment of 73 Pezizomycotina TER introns and presented using Sequence Logo. (b) Sequence conservation of four Taphrinomycotina TER introns. The aligned sequences of 5′-SS, BPS and 3′SS of TER introns from Schizosaccharomyces pombe (Spo), S. octosporus (Soc), S. japonicus (Sja) and Saitoella complicata (Sco) are shown. (c) Evolutionary relationship of fungal TER introns. The phylogenetic tree of select species from Pezizomycotina (P), Saccharomycotina (S) and Taphrinomycotina (T) is based on a recent fungal six-gene phylogeny study (James et al. (2006); Liu et al. (2009)). Respective intron 5′-SS sequences from select species with known TER introns are shown. The length of the branch line does not reflect evolutionary distance. The evolutionary position of Hansenula polymorpha is tentative (dashed line).
