Genetic Demography of Ukrainian Urban Populations in the 1990s: Ethnic Geographic Characteristics of Migration in the Donetsk Population

Analysis of data on the birthplaces and ethnicity of persons who contracted marriages in the city of Donetsk in 1960, 1985, and 1992 demonstrated that the proportions of Russians and Ukrainians (the dominant ethnic groups among Donetsk residents) in the migration flow increased. The trend towards formation of ethnically disperse groups from the city residents became stronger. The index of isolation by distance (parameter b of Malecot's model) was 0.00103, 0.00071, and 0.00083 in 1960, 1985, and 1992, respectively. The proportions of long-range and short-range migrants increased by 1.2 times and decreased by 2.3 times, respectively, during the period studied. The locality size of the Donetsk population was 50, 62, and 53 km in 1960, 1985, and 1992, respectively. The highest isolation by distance was observed in Jews and Greeks and the lowest one, in Russians.     

Genetic demographic processes in Ukrainian population in 1990. The marriage structure of the Donetsk population

Analysis of records of the marriages that were contracted in the city of Donetsk revealed that, between 1960 and 1992, the marriage rate in the city decreased from 14.8 to 4.7 per 1000 people, the migration rate (m) decreased from 0.71 to 0.34, and the endogamy index increased from 0.123 to 0.458. Between 1960 and 1985, outbreeding in the Donetsk population increased, which was expressed in an increase in the frequency of interethnic marriages, migration range, and the average marital distance, as well as a decrease in the proportion of the indigenous ethnic group (Ukrainians). By 1992, outbreeding decreased: the population became more homogeneous ethnically (93% Slavic), the proportion of Ukrainians and the frequency of monoethnic marriages increased, and the average marital distance decreased. In 1960 and 1992, the coefficients of marriage contingency (K) with respect to ethnicity were 0.34 and 0.22, respectively. Regarding birthplaces, the population became almost panmictic (in 1960 and 1992, the K values were 0.15 and 0.10, respectively). Marriage structure with respect to occupation remained almost unchanged (the K values were 0.22 and 0.23, respectively). Throughout the entire period studied, the most pronounced population subdivision was that with respect to the education level (the K values were 0.36 and 0.39, respectively).     

Genetic demography of Ukrainian urban populations in the 1990's: ethnicity and birth places of migrants to the Poltava population

Analysis of the birthplace and ethnicity of males and females contracting marriages in the city of Poltava in 1960, 1985, and 1995 revealed a trend towards return of Ukrainians from various regions of the former Soviet Union to their places of origin. In the migration flow, Russians were gradually substituted by Ukrainians, and the total proportion of Slavs increased. The isolation by distance (b) decreased from 0.00122 to 0.00075 in the period from 1960 to 1985 and then increased to 0.00098 by 1995. Positive association was found between the parent-offspring distance and marriage distance (the correlation coefficient r = 0.65-0.75).     

Genetic Demography of Ukrainian Urban Populations in the 1990s: Ethnicity and Birthplaces of Migrants to the Poltava Population

Analysis of the birthplaces and ethnicity of males and females contracting marriages in the city of Poltava in 1960, 1985, and 1995 revealed a trend towards return of Ukrainians from various regions of the former Soviet Union to their places of origin. In the migration flow, Russians were gradually substituted by Ukrainians, and the total proportion of Slavs increased. The isolation by distance (b) decreased from 0.00122 to 0.00075 in the period from 1960 to 1985 and then increased to 0.00098 by 1995. Positive association was found between the parent–offspring distance and marriage distance (the correlation coefficient r = 0.65–0.75).     

Genetic demographic structure of the Belgorod population: age, ethnicity, education, and occupation

Data from marriage records of the city of Belgorod for 1960, 1985, and 1995 have been used to determine some parameters of population structure in this city. The coefficients of correlation with respect to age of marriage between spouses in the couples contracting marriages in these years were 0.74, 0.62, and 0.80, respectively. Women of reproductively unfavorable age (under 20 or over 30 years) accounted for 5.5, 0.83, and 19% of all women contracting marriages in these years, respectively. The proportions of interethnic marriages in these years were 16.9, 14.9, and 15.6%, respectively. The percentage of Slavs decreased from 99 to 97% during the 35 years studied, whereas the proportion of Russians insignificantly increased (from 90.4 to 91.4%). The proportion of Caucasian ethnic groups increased by six time (from 0.3 to 1.8%), and that of other non-Slavic ethnic groups increased by almost two times (from 0.7 to 1.2%). The marriage convergence (K) with respect to ethnicity (0.095, 0.106, and 0.090 in 1960, 1985, and 1995, respectively) was lower than that with respect to education (0.296 and 0.350 in 1985 and 1995, respectively) or occupation (0.212 and 0.231 in 1985 and 1995, respectively). The maximum coefficients of ethnically, educationally, and occupationally assortative marriage have been found, respectively, in ethnic minority groups (A' = 20%); in persons with higher and primary education (A' = 37.5 and A' = 49.9%, respectively); and in the military officers/soldiers, engineers, healthcare professionals, and researchers (the respective A' values are 65.6, 32.2, 31.5, and 39.8%).     

Genetic Demographic Structure of the Belgorod Population: Age,Ethnicity, Education,and Occupation

Data from marriage records of the city of Belgorod for 1960, 1985, and 1995 have been used to determine some parameters of population structure in this city. The coefficients of correlation with respect to age of marriage between spouses in the couples contracting marriages in these years were 0.74, 0.62, and 0.80, respectively. Women of reproductively unfavorable age (under 20 or over 30 years) accounted for 5.5, 0.83, and 19% of all women contracting marriages in these years, respectively. The proportions of interethnic marriages in these years were 16.9, 14.9, and 15.6%, respectively. The percentage of Slavs decreased from 99 to 97% during the 35 years studied, whereas the proportion of Russians insignificantly increased (from 90.4 to 91.4%). The proportion of Caucasian ethnic groups increased by six time (from 0.3 to 1.8%), and that of other non-Slavic ethnic groups increased by almost two times (from 0.7 to 1.2%). The marriage convergence (K) with respect to ethnicity (0.095, 0.106, and 0.090 in 1960, 1985, and 1995, respectively) was lower than that with respect to education (0.296 and 0.350 in 1985 and 1995, respectively) or occupation (0.212 and 0.231 in 1985 and 1995, respectively). The maximum coefficients of ethnically, educationally, and occupationally assortative marriage have been found, respectively, in ethnic minority groups (A′ = 20%); in persons with higher and primary education (A′ = 37.5 and 49.9%, respectively); and in the military officers/soldiers, engineers, healthcare professionals, and researchers (the respective A′ values are 65.6, 32.2, 31.5, and 39.8%).__________Translated from Genetika, Vol. 41, No. 6, 2005, pp. 823–829.Original Russian Text Copyright © 2005 by Atramentova, Filiptsova.     

Spatial characteristics of marriage migration in the Belgorod population

Data from marriage records of the city of Belgorod for 1960, 1985, and 1995 have been used to calculate parameters characterizing migration in the Belgorod population. The marriage migration coefficients (m) in these years were 0.83, 0.68, and 0.58, respectively, and the endogamy indices were 0.05, 0.13, and 0.22, respectively. The marriage convergence (K) with respect to birthplace in the same years were 0.15, 0.13, and 0.14, respectively. In the period studied, spatial parameters reflecting the genetic efficiency of migration increased. The mean migration distance also increased; it was 430, 667, and 926 km in 1960, 1985, and 1995, respectively. The migration distances for men and women in the same years were 477, 725, and 986 km and 383, 609, and 866 km, respectively. The radius of the Belgorod population in terms of Malecot's isolation by distance model increased in the period studied (55, 81, and 95 km in 1960, 1985, and 1995, respectively). The parameter b in that period decreased (0.00110, 0.00074, and 0.00062, respectively), which indicates a decrease in the inbred component. The increase in marital distance (590, 796, and 891 km in 1960, 1985, and 1995, respectively) indicates a steady increase in the outbred component of the population.     

Spatial Characteristics of Marriage Migration in the Belgorod Population

Data from marriage records of the city of Belgorod for 1960, 1985, and 1995 have been used to calculate parameters characterizing migration in the Belgorod population. The marriage migration coefficients (m) in these years were 0.83, 0.68, and 0.58, respectively, and the endogamy indices were 0.05, 0.13, and 0.22, respectively. The marriage convergence (K) with respect to birthplace in the same years were 0.15, 0.13, and 0.14, respectively. In the period studied, spatial parameters reflecting the genetic efficiency of migration increased. The mean migration distance also increased; it was 430, 667, and 926 km in 1960, 1985, and 1995, respectively. The migration distances for men and women in the same years were 477, 725, and 986 km and 383, 609, and 866 km, respectively. The radius of the Belgorod population in terms of Malecot’s isolation by distance model increased in the period studied (55, 81, and 95 km in 1960, 1985, and 1995, respectively). The parameter b in that period decreased (0.00110, 0.00074, and 0.00062, respectively), which indicates a decrease in the inbred component. The increase in marital distance (590, 796, and 891 km in 1960, 1985, and 1995, respectively) indicates a steady increase in the outbred component of the population.__________Translated from Genetika, Vol. 41, No. 5, 2005, pp. 686–696.Original Russian Text Copyright © 2005 by Atramentova, Filiptsova.     

Genetic Demographic Structure of the Lugansk (Ukraine) Population: Age,Ethnicity, Education,and Occupation

Data from marriage records from registry office archives of 1960, 1985, 1990, and 2000 have been used to calculate the genetic demographic parameters of the Lugansk city population. The population is mostly Ukrainian and Russian. In the years studied, Ukrainians accounted for 49.4, 44.0, 44.6, and 48.7% of the population and Russians, for 46.3, 52.1, 50.7, and 45.6%, respectively. The total proportion of the two ethnic groups decreased from 97.3 to 94.6% for 40 years. The marriage contingency coefficient (K) with respect to ethnicity decreased from 0.16 to 0.07 in the period between 1960 and 1985 and increased from 0.10 to 0.24 between 1990 and 2000. The frequency of interethnic marriages (48.4, 50.9, 52.0, and 60.0%, respectively, in the years studied) indicate that the outbreeding component has been constantly increasing in the Lugansk population. The marriage assortativeness indices (A′) for Ukrainians were 0.2, 4.8, 2.1, and 6.0% in 1960, 1985, 1990, and 2000, respectively. For pooled minor ethnic groups, A′ values in these years were 25.6, 12.4, 18.9, and 6.6%, respectively. The marriage contingency coefficient (K) with respect to occupation increased in the period between 1960 and 1990 (0.14, 0.16, and 0.19 in 1960, 1985, and 1990, respectively), and K with respect to education decreased (0.35, 0.30, and 0.26, respectively).     

Spatial and geographic characteristics of marriage migration in the Lugansk population

Data from the Lugansk City Registry Office archives of 1960, 1985, 1990, and 2000 were used to calculate genetic demographic parameters characterizing marriage migration. The migration coefficients (m) in these years were 0.69, 0.54, 0.47, and 0.36; the endogamy indices were 12.1, 24.4, 30.5, and 43.2%, and the marriage contingency coefficients with respect to birthplace (K) were 0.12, 0.10, 0.11, and 0.13, respectively. The mean migration distance increased by a factor of 1.5 (from 599 to 870 km), and the mean parent-offspring distance decreased by a factor of 1.3 (from 415 to 317 km) during the period between 1960 and 2000. The mean marriage distance increased from 654 to 718 km between 1960 and 1985 and then decreased to 594 km by the year 2000. The proportion of "long-distance" migrations calculated using Malecot's model increased from 0.013 to 0.021 between 1960 and 1990 and decreased to 0.005 by 2000. The proportion of "short-distance" migrations was 0.77 in 1960 and 0.51 in 2000. The migration efficiency increased from 0.09 to 0.18 between 1960 and 1990 and decreased to 0.07 by 2000. In the years studied, the indices of isolation by distance (b) were 0.0005, 0.0004, 0.0005, and 0.0002, and the population "radii" were 90, 118, 119, and 168 km, respectively.     

Genetic demographic analysis of western Ukrainian populations: the marriage structure of populations from the Khmel'nitskii oblast with respect to ethnicity and birthplace

Ukrainians account for 85 and 91% of the populations of the city of Khmel'nitskii and the town of Starokonstantinov (Khmel'nitskii oblast, western Ukraine), respectively, and for 97% of the rural population of the Khmel'nitskii oblast. The proportions of Russians in the urban and rural populations of the Khmel'nitskii oblast are 7-10 and 1%, respectively. Between 1960 and 1995-1998, the proportions of Ukrainians in all populations studied increased and the proportion of interethnic marriages steadily decreased. The marriage association coefficient (K) with respect to ethnicity varied from 0.35 to 0.76 in different years. The highest assortative marriage indices (A') with respect to ethnicity were 75-98 and 71-84% in Ukrainians and Jews, respectively. The migration coefficient was 0.58-0.77. Western Ukrainian populations differ from eastern Ukrainian ones in a steadily decreasing outbreeding component.     

Spatial and geographic characteristics of marriage migration in the Lugansk population

Data from the Lugansk City Registry Office archives of 1960, 1985, 1990, and 2000 were used to calculate genetic demographic parameters characterizing marriage migration. The migration coefficients (m) in these years were 0.69, 0.54, 0.47, and 0.36; the endogamy indices were 12.1, 24.4, 30.5, and 43.2%, and the marriage contingency coefficients with respect to birthplace (K) were 0.12, 0.10, 0.11, and 0.13, respectively. The mean migration distance increased by a factor of 1.5 (from 599 to 870 km), and the mean parent-offspring distance decreased by a factor of 1.3 (from 415 to 317 km) during the period between 1960 and 2000. The mean marriage distance increased from 654 to 718 km between 1960 and 1985 and then decreased to 594 km by the year 2000. The proportion of “long-distance” migrations calculated using Malecot’s model increased from 0.013 to 0.021 between 1960 and 1990 and decreased to 0.005 by 2000. The proportion of “short-distance” migrations was 0.77 in 1960 and 0.51 in 2000. The migration efficiency increased from 0.09 to 0.18 between 1960 and 1990 and decreased to 0.07 by 2000. In the years studied, the indices of isolation by distance (b) were 0.0005, 0.0004, 0.0005, and 0.0002, and the population “radii” were 90, 118, 119, and 168 km, respectively.     

Genetic demographic parameters of the marriage structure of the Yevpatoria population

Records on marriages contracted in the city of Yevpatoria, Ukraine in 1960/1961, 1985, 1993, and 1994/1995 were used to determine some parameters of the city population structure. The coefficients of correlation with respect to the age of marriage in reproductive-age couples contracting marriages in these years were 0.77, 0.81, and 0.80, respectively. Women that contracted marriages at reproductively unfavorable ages (under 20 and over 30 years) in the respective years constituted 28.3, 40.6, and 45.4% of the total sample. The proportions of interethnic marriages in these years were 39.4, 43.9, and 46.6%. The proportion of Slavs decreased from 94 to 91% during 35 years, but the proportion of Ukrainians increased from 23.1 to 26.5%. The proportion of other ethnic groups (Tatars, Armenians, Karaites, Poles, Germans, etc.) increased from 3 to 8.6%. The marriage contingency with respect to ethnicity (K = 0.26 in 1960/1961, K = 0.22 in 1985, and K = 0.28 in 1994/1995) was higher than with respect to education (K = 0.18 in 1985 and K = 0.23 in 1993) or occupation (K = 0.18 in 1960/1961, K = 0.17 in 1985, and K = 0.23 in 1994/1995). The marriage assortativeness with respect to ethnicity was the highest in ethnic minorities (A' = 55.1%); that with respect to education, in persons who had higher or primary education (A' = 40.1% and A'= 78.0%, respectively); and that with respect to occupation, in students, military personnel, and production workers (60.6, 58.7, and 30.9%).     

Genetic demography of Ukrainian urban populations in the 1990s: the ethnic composition of the migration flow in the Kharkov population

Marriage records were used to study the dynamics of the migration flow into the population of Kharkov in 1960-1993. The decrease in the migration rate was accompanied by changes in the ethnic composition of the migrants. The entire migration flow from the republics of the Baltic region consisted of Russians and Ukrainians. The increase in the migration flow from Transcaucasia was mainly accounted for by the migration activity of indigenous populations. Most migrants from Moldova, Central Asia, Kazakhstan, and Kyrgyzstan were also representatives of the respective indigenous populations. Malecot's coefficient of isolation by distance (b) decreased from 0.00123 to 0.0081.     

Genetic Demographic Analysis of Western Ukrainian Populations: The Marriage Structure of Populations from the Khmel'nitskii Oblast with Respect to Ethnicity and Birthplace

Ukrainians account for 85 and 91% of the populations of the city of Khmel'nitskii and the town of Starokonstantinov (Khmel'nitskii oblast, western Ukraine), respectively, and for 97% of the rural population of the Khmel'nitskii oblast. The proportions of Russians in the urban and rural populations of the Khmel'nitskii oblast are 7–10 and 1%, respectively. Between 1960 and 1995–1998, the proportions of Ukrainians in all populations studied increased and the proportion of interethnic marriages steadily decreased. The marriage association coefficient (K) with respect to ethnicity varied from 0.35 to 0.76 in different years. The highest assortative marriage indices (A) with respect to ethnicity were 75–98 and 71–84% in Ukrainians and Jews, respectively. The migration coefficient was 0.58–0.77. Western Ukrainian populations differ from eastern Ukrainian ones in a steadily decreasing outbreeding component.     

Study of the most often encountered allele of the HLA-B27 gene in Tuvinian and Russian inhabitants of Western Siberia

HLA-B27 gene frequencies and allelic polymorphism were studied in two Siberian ethnic groups: Russians from Novosibirsk (western Siberia) and Tuvinians from Kyzyl (southern Siberia). The HLA-B27 frequencies were determined by means of serologic typing of HLA antigens in 198 Tuvinians and 288 Russians. Molecular typing was performed via hybridization of oligonucleotide probes with amplified DNAs obtained from 30 HLA-B27-positive Russians and 11 HLA-B27-positive Tuvinians. The HLA-B27 gene frequencies in Tuvinians and Russians were 5.5 and 10.4%, respectively. Molecular variants of the HLA-B27 gene were studied in Tuvinians for the first time. The proportions of the HLA-B2705 and HLA-B2704 alleles were found to be 64 and 36%, respectively, in the population studied. The presence of the HLA-B2704 allele indicates a Mongoloid origin of Tuvinians. In the Russian population of Novosibirsk, the HLA-B2704 allele was not found, whereas the proportions of the HLA-B2705 and HLA-B2702 alleles were 76.2 and 23.8%, respectively, which is characteristic of Caucasoid populations.     

Genetic demographic parameters of the marriage structure of the Yevpatoria population

Records on marriages contracted in the city of Yevpatoria, Ukraine in 1960/1961, 1985, 1993, and 1994/1995 were used to determine some parameters of the city population structure. The coefficients of correlation with respect to the age of marriage in reproductive-age couples contracting marriages in these years were 0.77, 0.81, and 0.80, respectively. Women that contracted marriages at reproductively unfavorable ages (under 20 and over 30 years) in the respective years constituted 28.3, 40.6, and 45.4% of the total sample. The proportions of interethnic marriages in these years were 39.4, 43.9, and 46.6%. The proportion of Slavs decreased from 94 to 91% during 35 years, but the proportion of Ukrainians increased from 23.1 to 26.5%. The proportion of other ethnic groups (Tatars, Armenians, Karaites, Poles, Germans, etc.) increased from 3 to 8.6%. The marriage contingency with respect to ethnicity (K = 0.26 in 1960/1961, K = 0.22 in 1985, and K = 0.28 in 1994/1995) was higher than with respect to education (K = 0.18 in 1985 and K = 0.23 in 1993) or occupation (K = 0.18 in 1960/1961, K = 0.17 in 1985, and K = 0.23 in 1993). The marriage assortativeness with respect to ethnicity was the highest in ethnic minorities (A′ = 55.1%); that with respect to education, in persons who had higher or primary education (A′ = 40.1% and A′ = 78.0%, respectively); and that with respect to occupation, in students, military personnel, and production workers (60.6, 58.7, and 30.9%).     

Analysis of marital migrations in two regions in the Sakh republic (Iakutiia)

The marital migration structure of two ouluses (administrative districts) of the Republic of Sakha (Yakutia) that have long been populated by three ethnic groups were studied on the basis of marriage records. Population genetic characteristics were calculated for each ethnic group. The ethnic assortativeness values were 30.9 in Evens, 1.36 and 4.46 in Russians, and 1.03 and 4.51 in Yakuts. The endogamy indices for the oulus and republican ethnic populations, respectively, were 0.83 and 1.0 in Evens, 0.41 and 0.99 in Yakuts, and 0.08 and 0.14 in Russians. The parameters of isolation by distance were the following: a = 0.0013 and b = 0.0020 in the Gornyi oulus; a = 0.0048 and b = 0.0014 in the Krest-Khaldzhai rural municipality; a = 0.0086 and b = 0.0095 in the Topolinoe rural municipality; and a = 0.0106 and b = 0.0013 in the Megino-Aldan rural municipality.     

Population demographic structure of the city of Ulan Ude: Ethnic composition and age at marriage

The marriage structure of the population of Ulan Ude, the capital of Buryat Republic, which is characterized by a mixed ethnic composition, has been studied. Differences between Ulan Ude districts in a number of genetic demographic parameters have been found. In ethnic terms, the city district populations differ from one another in the number of ethnic groups and the proportions of the largest groups (Russians and Buryats). In the total Ulan Ude population, the proportions of Russian men and women among persons contracting marriages are 71.44 and 73.79%, respectively; those of Buryat men and women are 23.36 and 22.79%, respectively. The total proportion of all other ethnic groups among both men and women contracting marriages is no more than 5.2%. The mean ages at first marriage in both indigenous and immigrant populations of Ulan Ude are relatively old; these values are 25.9 and 24.72 years for Buryat men and women and 24.86 and 22.69 for non-indigenous men and women, respectively.     

Characteristics of migration in the population of Yevpatoria (Crimea)

Indicators characterizing population migration were calculated according to the marriage records of Yevpatoria (Crimea) of 1960/1961, 1985, and 1994/1995. The marital migration coefficient m in those years was 0.80, 0.75, and 0.66, the endogamy index was 0.04, 0.08, and 0.15, and the rate of marriage contingency by birthplace was 0.15, 0.16, and 0.19, respectively. The highest values of the positive mating assortative index were recorded for people from the Caucasus, Central, Central Black Earth Oblast, and Northwest regions of Russia in 1960/1961 and for migrants from Moldavia, the republics of Central Asia and Caucasus, Western Siberia, and Ukraine in 1985. In 1994/1995, natives of Yevpatoria were also included in this group. The average distance of migration by year was 909, 1280, and 1314 km, and the marital distance was 960, 1397, and 1171 km. The “radius” of the Yevpatoria population, in accordance with the Maleco model in the years under study, was 98, 134, and 137 km. The distance isolation indicator b was decreasing and amounted to 0.00049, 0.00043, and 0.00038. In the migration flow in all of the periods, the majority of immigrants came from different regions of Ukraine outside Crimea (27–31%), followed by natives of various places in Crimea (21–24%), Central (3.6–8.5%), and Central Black Earth (1.8–6.1%) regions of Russia, and the South Caucasus (4.0–5.7%). The proportion of Russians and Jews decreased in the migration flow, while the proportion of Ukrainians and representatives of non-Slavic nationalities increased.