دورية
Revisiting Metarhiziumand the description of new species from Thailand
| العنوان: | Revisiting Metarhiziumand the description of new species from Thailand |
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| المؤلفون: | Mongkolsamrit, S., Khonsanit, A., Thanakitpipattana, D., Tasanathai, K., Noisripoom, W., Lamlertthon, S., Himaman, W., Houbraken, J., Samson, R.A., Luangsa-ard, J. |
| المصدر: | Studies In Mycology; March 2020, Vol. 95 Issue: 1 p171-251, 81p |
| مستخلص: | Over the last two decades the molecular phylogeny and classification of Metarhiziumhas been widely studied. Despite these efforts to understand this enigmatic genus, the basal lineages in Metarhiziumare still poorly resolved. In this study, a phylogenetic framework is reconstructed for the Clavicipitaceaefocusing on Metarhiziumthrough increased taxon-sampling using five genomic loci (SSU, LSU, tef, rpb1, rpb2) and the barcode marker ITS rDNA. Multi-gene phylogenetic analyses and morphological characterisation of green-spored entomopathogenic Metarhiziumisolates from Thailand and soil isolates of M. carneumand M. marquandiireveal their ecological, genetic and species diversity. Nineteen new species are recognised in the Metarhiziumclade with narrow host ranges: two new species are found in the M. anisopliaecomplex – M. clavatumon Coleopteralarvae and M. sulphureumon Lepidopteralarvae; four new species are found in the M. flavoviridecomplex – M. biotecenseand M. fusoideumon brown plant hoppers (Hemiptera), M. culicidarumon mosquitoes, M. nornnoion Lepidopteralarvae; three new species M. megapomponiae, M. cicadae, M. niveumoccur on cicadas; five new species M. candelabrum, M. cercopidarum, M. ellipsoideum, M. huainamdangense M. ovoidosporumoccur on planthoppers, leafhoppers and froghoppers (Hemiptera); one new species M. eburneumon Lepidopterapupae; and four new species M. phuwiangense, M. purpureum, M. purpureonigrum, M. flavumon Coleoptera.Of these 19 new species, seven produce a sexual morph (M. clavatum, M. eburneum, M. flavum, M. phuwiangense, M. purpureonigrum, M. purpureum,and M. sulphureum) and asexual morphs are found in the remaining new species and also in M. sulphureum, M. purpureonigrumand M. purpureum. Metarhizium blattodeae, M. koreanumand M. viridulumare new records for Thailand. An alternative neotype for Metarhizium anisopliaeis proposed based on multi-gene and 5′tefanalyses showing that CBS 130.71 from Ukraine is more suitable, being from a much closer geographical location to Metchnikoff’s Metarhizium anisopliae.This isolate is distinct from the neotype of Metarhizium anisopliaevar. anisopliaeproposed by M. Tulloch from Ethiopia (ARSEF 7487). Six new genera are established for monophyletic clades subtending the core Metarhiziumclade, including Keithomyces, Marquandomyces, Papiliomyces, Purpureomyces, Sungia,and Yosiokobayasia. Metarhizium carneum, M. aciculare,and M. neogunniiare combined in Keithomycesand one new combination for M. marquandiiin Marquandomycesis proposed. Purpureomycesis introduced for species producing purple stromata including a new combination for M. khaoyaienseand two new species P. maesotensisand P. pyriformis. Papiliomycescontains two new combinations for M. liangshanenseand Metacordyceps shibinensis. The genus Sungiais proposed for the Korean species M. yongmunenseon Lepidopterapupa and Yosiokobayasiafor the Japanese species M. kusanagiensealso on Lepidopterapupa. A synoptic and dichotomous key to the accepted taxa is provided together with tables listing distinguishing morphological characters between species, host preferences, and geography. |
| قاعدة البيانات: | Supplemental Index |
Full Text Finder | تدمد: | 01660616 18729797 |
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| DOI: | 10.1016/j.simyco.2020.04.001 |