A Nyíregyházi Jósa András Múzeum évkönyve 27-29. - 1984-1986 (Nyíregyháza, 1990)
László Szathmáry–Katalin Szilágyi–Ilona Tóth: Factor analysis of finger ridge counts in a familiar population fragment (Túrricse, NE-Hungary)
Factor analysis of finger ridge counts in a familiar population fragment (Túrricse, NE-Hungary) - Summary The authors performed dermatoglyphic examinations with the method of principal component analysis in a characteristic demogenetic unit of a relatively endogamous population (in the village Túrricse). The pedigrees involve several consanguineous marriages, thus the material was divided into 3 main groups: - matrilinear descendants (MAT) 37 individuals - patrilinear descendants (PAT) 26 individuals - both-line descendants (PAT and MAT) 23 individuals a total of 86 individuals. The dermal ridge counts were determined with the method of HOLT (1968). In consequence of the 2 values of the whorl patterns, 2 variables were evaluated on each finger, altogether 20. The numbers 1-11 refer to the dermal ridge counts on the right, the ones 11-20 to those on the left hand. The odd numbers are the radial, the even numbers the ulnar values. The variances (s 2 ) were compared using the F-test, the means (x) with the t-test. For multivariate analysis the BMDP (1979) program package was used. The results obtained are as follows: a/ The demogenetically separated samples (population fragments) contain such a principal component (factor 3) that plays a decisive role in judging the correlations between the inbreeding tendencies and the dermatoglyphic characters (Fig. 8). b/ The specific difference of the patrilinear pattern can be formulated by the help of the factor 1 (Fig.8). c/ The role of the matrilinear component of the pattern is manifested mostly through the factor 4 (Fig. 8). d/ The estimated sequence of the extent of the inbreeding tendency of the PAT and MAT>MAT>PAT pattern components seems- to be justified. Starting out from this assumption (which is yet to be confirmed) one can draw the conclusion that the individuals descending from the maternal line may be of more „sessile character" than those from the paternal line. The former ones may have participated in the formation of the genetic profile of the historical large family under analysis more intensively, with greater genetic vicinity. László Szathmáry Vasvári Pál Múzeum TISZAVASVÁRI Báthori u. 1. H-4440 Katalin Szilágyi KLTE, Embertani Részleg DEBRECEN, Pf. 6. H-4410 Ilona Tóth KLTE, Embertani Részleg DEBRECEN, Pf. 6. H-4410 357
