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1300 Genetica (2011) 139:1293–1308

Table 3 ISSR dataset: summary of STRUCTURE simulations
A B C
1 2 3 4 5 6 7
I II III IV V VI VII VIII IX X XI
Sardinian-Corsican region (SCR)
ACS 10
APS 10
APB 10
CDN 9
IPO 3 1
ARG 8(4) 1(0) 2(1)
MVE 1(0) 8
PLF 10
NAQ 3
MAD 10(9)
PIT 6
CGR 8
MLA 7(4)
MLT 8
GAL 4
CAR 5
TIZ 1
BOF 1
Spain, North Africa and Sicily (SAS)
LIT 1 4
DIQ 1 6(4)
DES 1 3(2)
PAR 5
CRL 2 3
ALB 2(0) 2(0) 2(0)
MEL 10
CHA 10
PLA 3
HAB 6
CAP 2 1 7(6)
ZEM 5
PAN 1
MAR 2
FAV 2
Capital letters and Arabic numerals identify clusters found in the first and second round of STRUCTURE, respectively. Each column marked
with a Roman numeral corresponds to a cluster found after the third round of STRUCTURE. For each sampling location is indicated the number
of individuals assigned to a cluster with a membership coefficient [0.5; if different, the number of individuals of pure ancestry (membership
coefficient [0.8) is reported between parentheses. Abbreviations are given in Table 1

Significantly negative autocorrelation values were Mitochondrial DNA
observed at distance classes that involved pairwise com-
parisons of specimens from different subclusters. On the Sequences of 581 bp (COI), 365 bp (12S), and 488 bp
other hand, cluster C (the SAS group) showed a spatial (16S) were obtained. The most common COI haplotype
positive autocorrelation for distances up to 40 km was shared by 165 of the 174 individuals (about 95%), the
(Fig. 5d). remaining nine distributed as follow: ALB 3 and CHA 5;

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