Fig. 6From: Morphology, mating system and taxonomy of Volvox africanus (Volvocaceae, Chlorophyceae) from ThailandComparison of the most conserved region [near the YGGY motif of helix III (Coleman 2009)] of nuclear rDNA ITS-2 secondary structure between strains of four mating systems of Volvox africanus and V. reticuliferus (Table 1). Note the modified YGGY motif (boldface). For secondary structures of ITS-2, see Nozaki et al. (2015a). Red and black open boxes indicate compensatory base changes between Homo II strains (from Thailand and USA) and those of other sexual systemsBack to article page