Performance of megablast searches (default settings) using cryptophyte 5′-partial nuclear LSU rDNA as query sequences.

All other 100 first hits in testing scenario (a): cryptophyte sequences only. Only cryptophytes among first 100 hits in testing scenario (b); mixture of representatives of the Chroomonas clade and other genera. Only cryptophytes among first 100 hits in testing scenario (c); sequences of the genus Cryptomonas ranked in positions 1 to 47, followed by other cryptophyte genera.
*RW Butcher revised cryptophyte genera in 1967, but the classification resulted in an unnatural systematics [156]. Genus names thereafter have not been corrected by the culture collection.