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FilenameFormatSizeDescription
ece3706-sup-0001-DataS1.fastatext/fas285KData S1. OTU sequences in FASTA format.
ece3706-sup-0002-DataS2.xlsxapplication/msexcel3801KData S2. Summary of pyrosequencing reads that passed quality filtering.
ece3706-sup-0003-DataS3.xlsxapplication/msexcel66KData S3. 836 OTUs observed in the root samples.
ece3706-sup-0004-DataS4.xlsxapplication/msexcel857KData S4. Matrix representing the presence/absence of fungal OTUs in each root sample.
ece3706-sup-0005-DataS5.xlsxapplication/msexcel47KData S5. Matrix representing the symbiosis of plant species and fungal OTUs.
ece3706-sup-0006-FigS1.pdfapplication/PDF789KFigure S1. Diversity of host plants and fungi in the samples. (A) Composition of host plant species identified by chloroplast rbcL sequences. The number of root samples is given in parentheses. (B) Phylum-level composition of fungal OTUs observed in root samples (676 of 836 OTUs were assigned at the phylum level). (C) Order-level composition of fungal OTUs observed in root samples (431 of 836 OTUs were assigned at the order level). (D) Genus-level composition of fungal OTUs observed in root samples (221 of 836 MOTUs were assigned at the genus level).
ece3706-sup-0007-FigS2.pdfapplication/PDF1765KFigure S2. Rarefaction curves of fungal OTUs against the numbers of sequencing reads and samples. (A) Rarefaction curve of fungal OTUs in each terminal root sample against the number of pyrosequencing reads excluding singletons. (B) Rarefaction curve of fungal OTUs against sample size. The shaded area represents the standard deviation (standard error of the estimate) obtained from 100 randomizations of sample order.
ece3706-sup-0008-FigS3.pdfapplication/PDF571KFigure S3. Host-specific and generalist fungi shared between pairs of dominant plant species. In each pair of the five most dominant plant species (Fig. S1A), a CLAM analysis (Chazdon et al. 2011) classified fungal OTUs into the following categories: fungi common on both plants (circle), fungi preferentially associated with either plant (square and diamond), and fungi that were too rare to be assigned association specificity (triangle). The OTU IDs of fungi with significant host preference are indicated under the symbols. For simplicity, results of the pairs of the five most common plant species in the community (Fig. S1A) are shown (see also Fig. 3). (A) Quercus glauca versus Lyonia ovalifolia. (B) Pinus densiflora versus Q. glauca. (C) L. ovalifolia versus Q. serrata. (D) Pinus densiflora versus Q. serrata. (E) Ilex pedunculosa versus L. ovalifolia. (F) I. pedunculosa versus P. densiflora. (G) L. ovalifolia versus P. densiflora.
ece3706-sup-0009-TableS1.xlsxapplication/msexcel67KTable S1. The d′ index for respective plant species and fungal OTUs.
ece3706-sup-0010-TableS2.xlsxapplication/msexcel49KTable S2. Statistically significant specialists and generalists revealed by CLAM test.

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