Abstract
Temporal changes in the matrimonial structure of four Sardinian populations (Bitti, Lula, Lodè and Gavoi) have been studied. The endogamy rates and the average marriage distances indicate that the four villages experienced a long period of isolation. Only in recent decades endogamous marriages have fallen shortly. The trends of marital isonymy and inbreeding, evaluated both from isonymy and dispensation for consanguineous marriages, are similar to those of endogamy. The kinship values between pairs of populations show some preferential relationship (Bitti-Lodè, Lodè-Lula) and an evident differentiation between Gavoi and Bitti. The results also indicate that the values of kinship are not associated with the geographic distances. The possible impact of the matrimonial structure on the genetic structure and the relationships among the studied populations will be examined in further investigations, in which the genetic markers will be considered.
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