Table 1 Plant specimens analysed in the study to evaluate the different DNA extraction methods. Each sample represents a unique archaeological grape pip. Unique sample name was attributed to each pip, including a suffix related to the extraction method (A for CTAB, B for DNeasy, C for S-PDE and D for Phe-chl). Information about the specific archaeological site, stratigraphic unit with datation, and extraction method used for the DNA extraction are given as well as indication (x) whether samples were also tested for library production and subjected to NGS sequencing.

From: Optimizing ancient DNA recovery from archaeological plant seeds

Archaeological site	Sample Name	Stratigraphic Unit	Period	DNA extraction	Library	NGS sequencing
Cologna Veneta	CL108_A	US 341	XIII century CE	CTAB
	CL127_A	US 341	XIII century CE	CTAB
	CL128_A	US 341	XIII century CE	CTAB
	CL129_A	US 341	XIII century CE	CTAB
	CL171_A	US 383	XIII century CE	CTAB
	CL192_A	US 341	XIII century CE	CTAB	x
	CL208_A	US 341	XIII century CE	CTAB	x
	CL209_A	US 341	XIII century CE	CTAB	x
	CL217_A	US 341	XIII century CE	CTAB	x
	CL262_A	US 341	XIII century CE	CTAB
	CL274_A	US 341	XIII century CE	CTAB
	CL83_B	US 383	XIII century CE	DNeasy
	CL84_B	US 383	XIII century CE	DNeasy
	CL85_B	US 383	XIII century CE	DNeasy
	CL94_B	US 383	XIII century CE	DNeasy
	CL99_B	US 383	XIII century CE	DNeasy
	CL103_B	US 341	XIII century CE	DNeasy	x
	CL104_B	US 341	XIII century CE	DNeasy	x	x
	CL105_B	US 341	XIII century CE	DNeasy	x
	CL107_B	US 341	XIII century CE	DNeasy	x	x
	CL114_B	US 383	XIII century CE	DNeasy
	CL119_B	US 383	XIII century CE	DNeasy
	CL1_C	US 341	XIII century CE	S-PDE	x	x
	CL2_C	US 341	XIII century CE	S-PDE	x	x
	CL3_C	US 341	XIII century CE	S-PDE	x	x
	CL4_C	US 341	XIII century CE	S-PDE	x	x
	CL5_C	US 341	XIII century CE	S-PDE	x
	CL6_C	US 341	XIII century CE	S-PDE	x	x
	CL7_C	US 341	XIII century CE	S-PDE	x	x
	CL8_C	US 341	XIII century CE	S-PDE	x	x
	CL9_C	US 341	XIII century CE	S-PDE	x	x
	CL163_C	US 383	XIII century CE	S-PDE	x
	CL164_C	US 383	XIII century CE	S-PDE	x	x
	CL165_C	US 383	XIII century CE	S-PDE	x	x
	CL166_C	US 383	XIII century CE	S-PDE	x	x
	CL202_D	US 341	XIII century CE	Phe-chl
	CL203_D	US 341	XIII century CE	Phe-chl
	CL172_D	US 383	XIII century CE	Phe-chl
	CL174_D	US 383	XIII century CE	Phe-chl
Nogara	NG2_A	US 3024	IX-X century CE	CTAB
	NG6(24)_A	US 3024	IX-X century CE	CTAB
	NG6_A	US 3028	XI-XII century CE	CTAB
	NG10_A	US 3028	XI-XII century CE	CTAB
	NG32_A	US 7012	IX-X century CE	CTAB	x	x
	NG35_A	US 7012	IX-X century CE	CTAB	x	x
	NG38_A	US 7012	IX-X century CE	CTAB	x	x
	NG47_A	US 7012	IX-X century CE	CTAB	x
	NG224_A	US 7012	IX-X century CE	CTAB
	NG225_A	US 7012	IX-X century CE	CTAB
	NG231_A	US 7012	IX-X century CE	CTAB
	NG232_A	US 7012	IX-X century CE	CTAB
	NG233_A	US 7012	IX-X century CE	CTAB
	NG234_A	US 7012	IX-X century CE	CTAB
	NG76_B	US 7012	IX-X century CE	DNeasy
	NG77_B	US 7012	IX-X century CE	DNeasy
	NG79_B	US 7012	IX-X century CE	DNeasy
	NG80_B	US 7012	IX-X century CE	DNeasy
	NG124_B	US 7012	IX-X century CE	DNeasy
	NG133_B	US 7012	IX-X century CE	DNeasy	x
	NG134_B	US 7012	IX-X century CE	DNeasy
	NG135_B	US 7012	IX-X century CE	DNeasy	x
	NG221_B	US 7012	IX-X century CE	DNeasy	x
	NG223_B	US 7012	IX-X century CE	DNeasy	x	x
	NG1_C	US 3024	IX-X century CE	S-PDE	x
	NG2_C	US 3024	IX-X century CE	S-PDE	x
	NG4_C	US 3028	XI-XII century CE	S-PDE	x
	NG5_C	US 3024	IX-X century CE	S-PDE	x
	NG6_C	US 3028	XI-XII century CE	S-PDE	x	x
	NG7_C	US 7012	IX-X century CE	S-PDE	x
	NG8_C	US 7012	IX-X century CE	S-PDE	x
	NG10_C	US 3028	XI-XII century CE	S-PDE	x
	NG11_C	UC 3041	XI-XII century CE	S-PDE	x	x
	NG12_C	US 7012	IX-X century CE	S-PDE	x
	NG13_C	US 7012	IX-X century CE	S-PDE	x	x
	NG14_C	US 7012	IX-X century CE	S-PDE	x	x
	NG29_C	US 3024	IX-X century CE	S-PDE	x	x
	NG30_C	US 3024	IX-X century CE	S-PDE	x
	NG31_C	US 3025	IX-X century CE	S-PDE	x	x
	NG32_C	US 3028	XI-XII century CE	S-PDE	x	x
	NG33_C	US 3045	XI-XII century CE	S-PDE	x	x
	NG18_D	US 7012	IX-X century CE	Phe-chl
	NG19_D	US 7012	IX-X century CE	Phe-chl
	NG23_D	US 3028	XI-XII century CE	Phe-chl
	NG25_D	US 7012	IX-X century CE	Phe-chl

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