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. 2019 Dec 20;9:19528. doi: 10.1038/s41598-019-56049-y

Table 2.

List of fungal operational taxonomic units (OTUs)a identified in orchid roots using sequencing.

OTU Length (bp) [n = frequency of occurrence] Phylogenetic relationshipb
Taxonomic affiliation Closest match in GenBank (accession number) Sequence identity (%) Associated orchid species
OTU100 243 [n = 1] Ceratobasidiaceae Ceratobasidium cereale (KT362077) 97 Cb
OTU159 336 [n = 1] Ceratobasidiaceae Rhizoctonia solani (KM488565) 96 Cr
OTU183 302 [n = 1] Ceratobasidiaceae Ceratobasidium theobromae (KU319573) 88 Cr
OTU438 251 [n = 1] Ceratobasidiaceae Rhizoctonia solani (JQ676901) 100 Pc
OTU548 291 [n = 3] Serendipitaceae Sebacinales sp. 44 (HQ853682) 95 Cr
OTU549 303 [n = 1] Serendipitaceae Sebacinales sp. 4035 (JF906112) 89 Dl
OTU550 314 [n = 5] Serendipitaceae Sebacina [ = Serendipita] sp. Seb25I (AB831811) 90 Bm; Cb; Cf, Da
OTU560 303 [n = 1] Serendipitaceae Sebacina [ = Serendipita] sp. (KX185541) 91 Dl
OTU561 305 [n = 2] Serendipitaceae Sebacina [ = Serendipita] sp. (KC928372) 90 Dl
OTU574 527 [n = 1] Tulasnellaceae Epulorhiza sp. M-1 (JQ713573) 85 Dl
OTU575 527 [n = 4] Tulasnellaceae Tulasnella sp. DC225 (KC152330) 90 Dl
OTU576 527 [n = 3] Tulasnellaceae Tulasnella sp. DC225 (KC152326) 91 Dl
OTU579 527 [n = 2] Tulasnellaceae Tulasnella sp. DC225 (KC152330) 92 Cm; Dl
OTU582 527 [n = 1] Tulasnellaceae Tulasnella sp. DC225 (KC152330) 87 Dl
OTU585 540 [n = 1] Tulasnellaceae Tulasnella sp. DC225 (KC152324) 90 Dl
OTU589 471 [n = 1] Tulasnellaceae Tulasnella sp. DC225 (KC152333) 91 Dl
OTU591 527 [n = 1] Tulasnellaceae Tulasnellaceae sp. 7 MB-2012 (JX138563) 97 Dl

aOTUs were defined by 97% internal transcribed spacer (ITS) sequence similarity; bBased on BLAST analysis (October 2017); Bm: Bulbophyllum medusae (Lindl.) Rchb. f., Cb: Cymbidium bicolor ssp. Lindl. ssp. pubescens (Lindl.) Du Pay & Cribb, Cf: Cymbidium finlaysonianum Lindl., Cm: Coelogyne mayeriana Rchb. f., Cr: Coelogyne rochussenii de Vr., Da: Dendrobium aloifoliuim (Blume) Rchb. f., Dl: Dendrobium leonis (Lindl.) Rchb. f., Pc: Phalaenopsis cornu-cervi (Breda) Blume & Rchb. f.; statuses of orchid species: nationally Critically Endangered or Presumed Nationally Extinct.