Table 1.

Sequence reads used in this study and rarefaction analysis of the number of OTUs.

Host species	Location	Sample ID	Read count	The number of observed OTUs
				Total	Average at sampling depth of 12627 reads	Percentage (at depths 12627/Total)
V. mandarinia	AIST	1	20543	43	43	100
		2	19115	20	20	100
		3	18307	28	28	100
		4	22719	49	48.5	99
	UT	1	12627	35	35	100
		2	17856	25	24.9	99.6
		3	16431	30	30	100
		4	15399	44	44	100
		5	56357	120	109.4	91.2
V. simillima	AIST	1	17092	67	66.9	99.9
		2	21564	42	41.8	99.5
		3	14828	40	40	100
		4	22060	55	54.2	98.5
		5	22981	49	48.7	99.4
	UT	1	34179	183	175.2	95.7
		2	20070	27	26.9	99.6
		3	23006	25	24.9	99.6

Host species, locations of sampling, read counts and rarefaction analysis in terms of the number of observed OTUs are shown. The OTU numbers at sampling depth of 12627 reads are average of ten iterations. AIST, the National Institute of Advanced Industrial Science and Technology; UT, the University of Tokyo.