Amongst the 105 Tuscan mt-s of the 1KGP, there are 9 hg. K:
4 K1a (NA20530, NA20522, NA20764, NA20813)
1 K1a1b1 (NA20539)
1 K1a1b1e (NA20505)
1 K1a1b2a1a (NA20759)
1 K1a4f1 (NA20828)
1 K2a8 (NA20756)
K2a8 (with an age in Behar 2012b of 1513.5 +/- 2173.3) has been based above all on the data of Just 2008 (DQ282493-DQ282504) found in Hispanics and JQ705029 found in Spain. The idea that its origin has been in Iberia is the first thinking: mutations in 207A, 16189C!, deletions and insertions from 16182 to 16193. Of course Hispanics and the Spaniard belong to the same haplotype.
But this Tuscan
A73G T146C T152C G207A A263G G709A A750G A1438G A1811G A2706G A3480G T4561C A4769G C7028T A8860G A9007N G9055A T9698C T9716C A10550G T11299C A11467G G11719A A12308G G12372A C14167T C14766T T14798C A15326G T15718C T16224C T16311C T16519C
and other (probably) K2a8 in Mitosearch (GFY5V: McNeely) and in SMGF (Galvan Cuello, Mexico, and Hiatt, USA Indiana) with the mutations in HVRI,II: 16224C 16311C 16519C 73G 146C 152C 207A 263G 315.1C) make us think all the question.
Id est the Spaniards could be derived from a K2a8 which is found in its most ancient form from Italy to the Isles, and like other haplogroups could come from the Italian Refugium and its age to be much older.