and allied genera from China: species diversity and distribution.

The genus includes numerous important plant and human pathogens, as well as many industrially and commercially important species. During our investigation of fungal diversity in China, a total of 356 fusarioid isolates were obtained and identified from diverse diseased and healthy plants, or different environmental habitats, i.e., air, carbonatite, compost, faeces, soil and water, representing hitherto one of the most intensive sampling and identification efforts of fusarioid taxa in China. Combining morphology, multi-locus phylogeny and ecological preference, these isolates were identified as 72 species of and allied genera, i.e., (1), (60), and (11). A seven-locus dataset, comprising the 5.8S nuclear ribosomal RNA gene with the two flanking internal transcribed spacer (ITS) regions, the intergenic spacer region of the rDNA (IGS), partial translation elongation factor 1-alpha (), partial calmodulin (), partial RNA polymerase largest subunit (), partial RNA polymerase second largest subunit () gene regions, and partial β-tubulin (), were sequenced and employed in phylogenetic analyses. A genus-level phylogenetic tree was constructed using combined , , and sequences, which confirmed the presence of four fusarioid genera among the isolates studied. Further phylogenetic analyses of two allied genera ( and ) and nine species complexes of were separately conducted employing different multi-locus datasets, to determine relationships among closely related species. Twelve novel species were identified and described in this paper. The species complex is herein renamed as the species complex, including descriptions of new species. Sixteen species were reported as new records from China. : Wang MM, Crous PW, Sandoval-Denis M, et al. 2022. Fusarium and allied genera from China: species diversity and distribution. Persoonia 48: 1-53. https://doi.org/10.3767/persoonia.2022.48.01.