The canonical group I intron in the plastid tRNA-Leu (trnL) gene. (A) Multiple alignments of plastid trnL genes from E. siliculosus (Es) and F. vesiculosus (Fv), showing the position of the group I intron located in the F. vesiculosus trnL2 gene. Structural features of tRNA are indicated on the two first lines. (B) Schematic phylogeny of the phaeophytes (redrawn from ), showing the presence (+) and absence (-) of the trnL intron in the different orders.
Le Corguillé et al. BMC Evolutionary Biology 2009 9:253 doi:10.1186/1471-2148-9-253