Dear brilliant minds...I am relatively new to molecular taxonomy of ciliates and was wondering where one can find details for determining new species or genera for ciliates (Peritrichia) using the 18S SSU gene?
A good place to start is to BLAST your 18S gene sequence against a known database (NCBI etc) and then make a phylogenetic tree (comparing a bunch of Petritrichia species 18S genes) to see closely related your sequence is to its closest relative.