Moscow University
Anthropology
Bulletin
Anthropology
Bulletin
1) N.I.Vavilov General Genetics Institute RAS, Moscow; 2) Lomonosov Moscow State University, Anuchin Research Institute and Museum of Anthropology, Mokhovaya st., 11, Moscow, 125009, Russia
Prudnikova A.S., e-mail: palesa@yandex.ru; Batsevich Valery A., Ph.D., ORCID ID: 0000-0003-3833-1588, e-mail: batsevich53@mail.ru
Introduction. The arm of this study was to study of fluctuating asymmetry of x-ray osteometric parameters of metacarpal bones in the two generations of Chuvash. We are supposed that, the older generation, that has the traditional way of life, have more stable homeostasis and, consequently, lower levels of FA metacarpal bones as compared with the younger generation living in a time of change, active migration and urbanization. Materials and methods. Our experimental data were the radiographs of the left and right hands of two generations Chuvash: 1-st generation – the older: 101 male and 153 female (the mean age, respectively: 63.06 and 62.42), 2-nd generation – younger: 137 male and 88 female (the mean age, respectively: 32.16 and 33.39). Parameters of metacarpal bones II-IV of left and right hands have been measured. Before calculating the total FA we analyzed the distribution of asymmetry, the presence of directional asymmetry, antisymmetry and size-dependence for each trait. The FA index was calculated in two different ways. Results and discussion. It was found that FA of IV metacarpal bone in older men was higher compared to younger generation. In women younger generation FA level of some traits higher compared to older generation of women. Probably, the IV metacarpal bones are most sensitive to exogenous (environmental) and endogenous factors (the effect of prenatal testosterone in the early stages of development) during morphogenesis of the metacarpal bones are. The total FA III metacarpal bone is higher in the younger generation of both sexes, but these values do not reach a reliable level of significance. Differences in the FA II and V of the metacarpal bones had not found in two generations. Conclusions. FA IV metacarpal bone in men older generation shows higher values compared with men younger generation. It can interpret that the man of older generation had had higher level of prenatal testosterone and that they had less level of developmental stability. Women have more stable morphogenesis of IV metacarpal bone. Probably, III metacarpal bone undergoes less influence of prenatal testosterone, so it may be better trait for calculating the index of FA in two generations.
anthropology, fluctuating asymmetry, hand bones, x-ray osteometry, developmental stability
Цит.: Prudnikova A.S., Batsevich V.A. The study of developmental stability of x-ray osteometric parameters of human metacarpal bones in the two generations of Chuvash // Moscow University Anthropology Bulletin (Vestnik Moskovskogo Universiteta. Seria XXIII. Antropologia), 2012; 4/2012; с. 120-126
Download text