Table 1.

Surface-enhanced Raman spectroscopy (SERS) wavenumbers (cm⁻¹)* and tentative assignments of genomic DNAs extracted from different grapevine varieties (see text for details).

Feteasca Neagra	Tamaioasa Romaneasca	Gordan	Feteasca Regala	Coarna Neagra	Ardeleanca	Braghina	Carloganca	Francuse	Cramposie	Tentative Assignment a
360 m	359 w	356 vw			363 w	354 w		362 m	359 vw	dG, dT, dA str
		378 w			421 vw			410 w		str dG, dT, dA
452 m	451 vw		448 w		449 w	456 w		448 m		str deoxyribose
						480 w	481 w			str deoxyribose
525 m	528 w		526 w		517 vw			530 w		dC/dT (ring def)
	571 w				570 w			577 w		dA (C2–H, N9–H wagging)
613 s	613 s	613 m	613 m		613 m					deoxyribose (C3′-endo-anti)
660 w				657 w	663 w					dG (ring breathing)
	707 vw					706 w			706 w	dA (ring breathing)
				732 s	725 m			721 w	723 vw	dA (ring breathing)
								741 vw		dT (ring breathing)
773 s	773 s	773 m	773 m		772 m	771 vw				dC, C2′-endo-anti
					795 m			796 m	790 w	bk 5′C–O–P–O–C3′ sym str
								829 w		deoxyribose C2′-endo
928 w	929 w		913 w		911 m			915 m	907 w	deoxyribose
				958 w						dA/dC/dG (NH2 rk)
1016 vw					988 vw			1008 w		dT (out-of-plane NH2 wagging)
				1029 vw	1055 vw			1031 w	1059 w	dA (N- deoxyribose str)
1086 w	1087 w	1085 vw			1088 vw	1084 vw	1084 w		1084 w	bk PO2− sym str
1127 m	1127 m	1129 m	1122 w	1136 vw	1126 m	1127 m	1127 m	1119 vw	1127 m	dA (C8–N9 str, N9–H, C8–H def)
1182 s	1180 m	1175 m	1175 m		1176 s	1174 w	1170 m	1174 s	1172 m	dA, dG (C5–C6 str)
						1228 w	1230 w			dT (in-plane ring - CH3 str)
							1280 sh			dC (C–NH2 str + ring str)
1311 s	1310 s	1308 m	1310 m		1308 s	1306 m	1304 m	1300 m	1305 m	dA, dG (C–N str (Im))
				1331 m						dA, dG (ring mode)
1363 vs	1363 vs	1363 s	1363 vs	1383 w	1363 vs	1359 s	1361 m	1370 s	1362 m	dT, dA, dG (C–N str (Py))
1421 w	1422 m	1425 w	1423 vw					1432 w	1434 vw	Deoxyribose C2′H2 scissoring
		1468 vw	1451 vw	1465 w	1450 w		1452 w			Deoxyribose CH2
1510 vs	1510 vs	1510 vs	1509 vs		1510 vs	1508 m	1510 w		1512 w	dA (NH2 def)
				1545 vw	1534 m			1532 w		dT (in-plane ring str)
1575 s	1574 s	1575 m	1574 m	1575 vw	1576 m			1575 m		dG, dA (C2=N3 of guanine)
	1601 sh		1621 w		1621 s	1602 s	1604 s	1621 s	1623 m	dA, dG, dC (NH2 def)
1651 vs	1650 vs	1651 vs	1650 s		1650 s	1648 m				dT, δ(H2O) (C=O str, C=C str)
				1700 w						dG (C–O), C–C

* Abbreviations: vs, very strong; s, strong; m, moderate; w, weak; vw, very weak; sh, shoulder. ^a Abbreviations: dA, deoxyadenosine; dG, deoxyguanosine; dC, deoxycytidine; dT, thymidine; bk, backbone; sym, symmetric; str, stretching; def, deformation; rk, rocking; Im, imidazole; Py, pyrimidine.