biostudies-literatureUnknown7Crous PWThe taxonomy of <i>Oculimacula, Rhynchosporium</i> and <i>Spermospora</i> is re-evaluated, along with that of phylogenetically related genera<i>.</i> Isolates are identified using comparisons of DNA sequences of the internal transcribed spacer ribosomal RNA locus (ITS), partial translation elongation factor 1-alpha (<i>tef1</i>), actin (<i>act</i>), DNA-directed RNA polymerase II largest (<i>rpb1</i>) and second largest subunit (<i>rpb2</i>) genes, and the nuclear ribosomal large subunit (LSU), combined with their morphological characteristics. <i>Oculimacula</i> is restricted to two species, <i>O. acuformis</i> and <i>O. yallundae</i>, with <i>O. aestiva</i> placed in <i>Cyphellophora</i>, and <i>O. anguioides</i> accommodated in a new genus, <i>Helgardiomyces</i>. <i>Rhynchosporium s. stFungal systematics and evolution67-98https://www.ebi.ac.uk/biostudies/studies/S-EPMC8165968biostudies-literatureRedefining genera of cereal pathogens: <i>Oculimacula</i>, <i>Rhynchosporium</i> and <i>Spermospora</i>.PMC8165968McDonald BALinde CCDyer PSZaveri AGroenewald JZLennox CLEdwards JMann RCCrous PWBraun UfalseRedefining genera of cereal pathogens: <i>Oculimacula</i>, <i>Rhynchosporium</i> and <i>Spermospora</i>.The taxonomy of <i>Oculimacula, Rhynchosporium</i> and <i>Spermospora</i> is re-evaluated, along with that of phylogenetically related genera<i>.</i> Isolates are identified using comparisons of DNA sequences of the internal transcribed spacer ribosomal RNA locus (ITS), partial translation elongation factor 1-alpha (<i>tef1</i>), actin (<i>act</i>), DNA-directed RNA polymerase II largest (<i>rpb1</i>) and second largest subunit (<i>rpb2</i>) genes, and the nuclear ribosomal large subunit (LSU), combined with their morphological characteristics. <i>Oculimacula</i> is restricted to two species, <i>O. acuformis</i> and <i>O. yallundae</i>, with <i>O. aestiva</i> placed in <i>Cyphellophora</i>, and <i>O. anguioides</i> accommodated in a new genus, <i>Helgardiomyces</i>. <i>Rhynchosporium s. st2021-01-01T00:00:00Z2021 Jun2026-05-08T18:46:27.698Z2022-02-10T14:57:23.66ZS-EPMC81659683412461810.3114/fuse.2021.07.04