title: Small-subunit ribosomal RNA sequence from Naegleria gruberi supports the polyphyletic origin of amoebas.
abstract: We have sequenced the small-subunit ribosomal RNA gene of the amoebo-flagellate protozoan Naegleria gruberi. Comparison of this sequence with the rRNA sequences of other eukaryotes resulted in a phylogenetic tree that supports the suggested polyphyletic origin of amoebas and suggests a flagellate ancestry for Naegleria.
authors.affiliation: Laboratory of Molecular Parasitology, Rockefeller University, New York, New York 10021-6399.
authors.forename: C G
authors.initials: CG
authors.lastname: Clark
authors.forename: G A
authors.initials: GA
authors.lastname: Cross
mesh_terms: D000818:Animals; D001483:Base Sequence; D004275:DNA, Ribosomal / Q000235:genetics*; D008969:Molecular Sequence Data; D009253:Naegleria / Q000235:genetics*; D010802:Phylogeny; D012335:RNA, Ribosomal / Q000235:genetics*; D012337:RNA, Ribosomal, 18S / Q000235:genetics
chemical_list: D004275:DNA, Ribosomal; D012335:RNA, Ribosomal; D012337:RNA, Ribosomal, 18S