Page 155 - Dedola2011

Table 4 : ISSR dataset: Two-level and thre-level Analysis of molecular variance
(AMOVA). Groups for three-level AMOVA were defined a priori according to
geographical features (see Table 3 for details). d.f. : degrees offreedom, SS: sum of
squares, var. comp.: variance component, %var: percentage ofvariation. NS not
significant, *p< 0.05, **p <0.01, ***p< 0.001

Source of variation d.f ss Var. %var <.D-statistics
Among populations comp.

Two-level AMOVA

39 1440.831 2.53457 27.1 <I>sT = 0.271 ***
4

Three-level AMOVA with Atlantic samples

Macaronesia vs Continent 54.455 0.15223 1.61 cf>cr = 0.0161 NS

Atlantic vs Mediterranean 62.471 0.21323 2.24 <DeT = 0.022 NS

Atlantic, western and eastern 2 161.194 0.34745 3.65 <I>cT=
Mediterranean 367.202 0.036***
382.725
TEN, ATL, WMED, SCR, WTHYR, 6 351.917 0.47048 4 .96 <DcT=
SES, LAM, CYP 327.390 0.050***

TEN, ATL, WMED, SCR, TUS, Sicily, 7 0.38403 4.06 <DcT=
0.041 ***
LAM, CYP

TEN, ATL, WMED, SCR+TUS, Sicily, 6 0.42282 4.46 <DcT=
LAM, CYP 0.045***

TEN, ATL, WMED, SCR+WTHYR, 5 0.51690 5.42 <I>cT =
SES, LAM, CYP 0.054***

Three-level AMOVA without Atlantic samples

Western and eastern Mediterranean 98.723 0.37441 3.90 <I>eT = 0.039**

WMED, SCR, WTHYR, SES, LAM, 5 303.441 0.47882 5.02 <I>cT=
CYP 0.050***

WMED, SCR, TUS, Sicily, LAM, CYP 5 286.1 28 0.42119 4.42 <DcT=
0.044***

WMED, SCR+TUS, Sicily, LAM, 4 255.319 0.48183 5.03 (f)CT =
CYP 0.050***

WMED, SCR+WTHYR, SES, LAM, 4 264.592 0.56601 5.87 <DcT=
CYP 0.059***

WMED, Sardinian sea, Thyrrenian sea, 5 309.369 0.40773 4 .31 <DcT=
SES, LAM, CYP 0.043***

155

Gìan Luca Dedola: ANALISI DELLA VARIABILITÀ GENETICA DI PATELLA FéRRUGINEA, PATEL.LA UL l'SSIPONENSIS (MOLLUSCA: GASTROPODA) E PINNA
NOBILIS (MOLLUSCA: BIVALVIA): lLCONTRJBUTO DEl DATI MOLECOLARI ALLA CONSERVAZIONE DI SPECIE MINACCIATE · Tesi di douorato in Scienze
della natura e delle sue risorse · indiri7.zo BK>logi.a Ambientale, Università degli Studi di Sassarl