Table 1. Average DNA concentrations and purities (A260/280) when the same samples were prepared by two researchers (R and T) using two different kits (MO and MN).

Locations/Kits	Latitude and longitude	MO_R		MO_T		MN_R		MN_T
		Conc. (ng/µl)	A260/280	Conc. (ng/µl)	A260/280	Conc. (ng/µl)	A260/280	Conc. (ng/µl)	A260/280
Masoho (A)	26°29′58.1″N–127°51′13.9″E	42	1.81	13.60	1.85	106	1.81	77.73	1.77
Manzamo_1 (B)	26°30′13.8″N–127°50′56.0″E	29	1.78	11.97	1.88	27	1.74	61.00	1.78
Manzamo_2 (C)	26°30′09.9″N–127°50′57.7″E	131	1.83	66.83	1.82	206	1.87	170.17	1.82
Iriomote (D)	24°20′29.8″N–123°48′59.7″E	17	1.78	7.27	1.79	4	1.40	32.37	1.50
Haemidanohama (E)	24°16′28.0″N–123°49′49.7″E	54	1.79	37.60	1.78	122	1.82	124.03	1.81
Kohamajima (D)	24°20′16.2″N–123°58′41.4″E	39	1.85	31.93	1.83	136	1.80	167.53	1.83