Phylogeny 32 genetics 30 phylogeny 28 DNA, Ribosomal Spacer 24 classification 24 ribosomal spacer DNA 24 article 22 Molecular Sequence Data 20 nucleotide sequence 18 Argentina 16 isolation and purification 16 molecular genetics 16 DNA sequence 14 DNA, Fungal 14 Sequence Analysis, DNA 14 chemistry 14 fungal DNA 14 ribosome DNA 14 DNA, Ribosomal 12 South America 12 Spores, Fungal 12 controlled study 12 cytology 12 fungus spore 12 genotype 12 morphology 12 nonhuman 12 spacer DNA 12 Animals 10 Base Sequence 10