Vienna A, De Stefano G F, Bastianini A, Biondi G
Dipartimento di Biologia, Università degli Studi di Roma Tor Vergata, Italy.
J Biosoc Sci. 1998 Oct;30(4):521-8. doi: 10.1017/s0021932098005215.
Data were obtained on surnames of the parents and places of birth of the parents and grandparents of children in Siena, Italy. Isonymy and total inbreeding coefficient, and their random and non-random components, are 0.005, 0.00125, 0.00019 and 0.00106, respectively. Isonymy and inbreeding figures are similar to those of other medium-sized Italian towns, while higher values have been reported for Italian villages and Italian ethnic minorities. City endogamy, and endogamy of Contrada for grandparents have the same values (44.1 and 44.8%, respectively), but for parents, endogamy of Contrada is lower than city endogamy (15.2 and 33.4%, respectively). The difference between the extent of Contrada endogamy expected at random and observed in the parents' generation does not seem to affect the genetic structure of the present population. However, the bulk of marriage migration (more than 70%) is short range, with people coming from Tuscany. There is no statistical difference in marital migration between males and females.
研究获取了意大利锡耶纳儿童父母的姓氏以及父母和祖父母的出生地数据。同姓率和近交系数及其随机和非随机成分分别为0.005、0.00125、0.00019和0.00106。同姓率和近交数据与意大利其他中等规模城镇的情况相似，而意大利村庄和意大利少数民族的相关数值更高。城市内婚率以及祖父母辈的行政区内婚率相同（分别为44.1%和44.8%），但在父母辈中，行政区内婚率低于城市内婚率（分别为15.2%和33.4%）。在父母一代中，随机预期的行政区内婚程度与观察到的行政区内婚程度之间的差异似乎并未影响当前人群的遗传结构。然而，大部分婚姻迁移（超过70%）是短距离的，人们来自托斯卡纳地区。男性和女性在婚姻迁移方面没有统计学差异。
