The Origin of the Lapps in the Light of Recent Genetic Studies
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The origin of the Lapps in the light of recent genetic studies A.W. ERIKSSON, J. FELLMAN, H. FORSIUS, W. LEHMANN, T. LEWIN, and P. LUUKKA The Lapps deviate in many genetic and external characters from other peoples of the Finno-Ugrian language group, such as Finns and Estonians. The relation between Lappish and other Finno-Ugrian languages (including Finnish) is still controversial (7). A considerable proportion of the ances tors of the present-day Lapps are supposed to have been spread over almost the whole of Finland and the northern parts of Fennoscandia. Five hundred years ago considerable areas of northern and eastern Finland were inhabited mainly by Lapps (Figure 1). Today there are about 35,000 Lapps in the whole of Fennoscandia: 20,000 in Norway, 10,000 in SWeden, 3,500 in Finland, and 1,500 on the Kola peninsula in the Soviet Union. One of the reasons why the commune of Inari was selected for International Biological Program Human Adaptability studies (9) was that this region is inhabited by three l70 Genetic considerations LAPP TERRITORY f'ZZ2] ~ 100 8 c '~;.. :970 AO ---!LC..tt!~!_ ~>-T.tr--.< I Figure 1 A comparison of Lapp territory, around 100 BC and 1970 AD rather different Lapp populations: the Skolt Lapps in· the eastern parts , the Fisher Lapps around Lake Inari, and the Mountain Lapps in the western parts of the cc:mmune · After World War II the Sevettijarvi Skol t Lapps were evacuated from the village of Suenjel and the Nellim Skol t Lapps from the regions south of the River Pasvik (Figure 1). Since. d World War II, the proportion of Lapps in Inari has decline markedly' although their absolute number has not decreased. For the calculations of gene frequencies, the four groups of Sevettijarvi Skolt, Nellim Skolt, Fisher, and Mountain Lapps have been used as representatives of pure, unmixed Lapps, with only those whose ancestors over the last three generations are at least 75 per cent aboriginal Lapps being accepted. More than 95 per cent of the Skolts' GO per cent of the Fisher Lapps, and more than 50 per ce~t of the Mountain Lapps have been studied. The Utsjoki series is a random sample investigated in 1973. PHYSICAL ANTHROPOLOGY OF LAPPS In external characteristics the majority of the Lapps deViate fran the surrounain~ populations. In contrast with Genetic studies on Lapps 171 other Scandinavian peoples, who are among the tallest in the world, the Lapps are short, with legs that are short both relatively and absolutely. The Lapps are also among the most brachycephalic (round-headed) peoples in the world, with a cephalic index of up to 85. They have rather prominent cheek bones and a low facial height (11). The flattening of the face, the prominence of the cheekbones, and the reduction of the nasal prominence are not nearly so marked in Lapps as in Mongolian populations. The inner eyefold, covering the inner margin of the eye and responsible for the half-moon slant eye of many Asiatic and Amerindian peoples, is rare in Lapps. Pigmentation Some Lapps may have a light complexion in childhood with quite fair hair. However, the darkening of the hair during adolescence is much IOC>re intense than in otper Nordic peoples. A screening of hair pigmentation with "Fisher Saller' s Haarfarbentafel," using 30 different hair colour shades (Figure 2), shows that the Lapps, particularly the Finnish Mountain Lapps, have considerably darker hair than the Finns, who are one of the blondest peoples in the world (6). Eye colours have been determined using Martin-Saller's scale (Figure 3). The pigmentation of the irises and the eye grounds (fundi) is much stronger than among the other Nordic populations. AlIIDst 30 per cent of the Fisher Lapps but hardly 5 per cent of the Skolt Lapps have deep brown eyes (7 and 8). On average, no less than 40-60 per cent of Fin- nish Lapps have blue eyes. Reflectance spectrophotometry has shown that among Fin nish Lapps skin colour is not yellow, as in Mongolians (un published observations). The Mongol spot can be found in most children of the Mongolian race but is rare among those of Lappish and other European populations. Hirsute Traits of Lapps The Lapps have soft and not unconononly wavy hair, in con trast to the coarse, straight hair of the Mongolian race. Microscopic studies show that the hair texture and hair pig mentation of the Skolt Lapps should be classified as Euro pean (Caucasian), not as Mongoloid (14). In its ample growth of hair, the white race resembles monkeys more than any other human race. Among Lapps, beard growth is rather sparse, and sideburns on the cheeks are often missing. Among the Lapps, body and axillary hair 172 Genetic considerations HAIR COLOUR (HAARFARBENTAFEL FIS CHER-SALLER) FINNS (NE FINLAND) MOUNTAIN LAPPS 30 no322 d',20-55y n • 9 7 d', 20 - 59 y 20 10 °lo F"·L M·O P·T U v w x y F-L M·O P-T U 40 FINNS (OULU) SKOLT LAPPS 30 n " 249 d', 20 - 59 y n = 7,1, d', 20 - 4 9 Y 20 10 F"· L M·O P. T U V W X y y Figure 2 A comparison of hair coloration in Finns and black)Lapps (F-L, blond; M-o, fair; P-T, brown; U-Y, brown to growth too is commonly sparse, as among the Mongoloi· d race.ng The occurrence of lniddle-phalangeal hair, at least ~ Lapps in Finland, is as high as among other Fennoscandian P<>PUlations (SWedes 70 per cent, NE Finns 80 per cent~s "oki Skolt females 75 per cent, Skolt males 95 per cent, U ~ Lapp females 69 per cent, Utsjoki Lapp males 74 per cen. ns (unpublished observations). The majority of the populatio Genetic studies on Lapps 173 % 30 SKOLT LAPPS 20 <60yd',n=202 10 20 LAPPS < 60y d', n = 6l 10 30 FINNISH MOUNTAIN 20 LAPPS < 60 y d', n= 88 10 lO 30 FINNS <60yd', n= 675 20 10 1 2 3 l 5 6 7 8 IRIS COLOUR TYPES (MARTIN -SALL ER'S SCALE) Figure 3 A comparison of iris colour types (Martin Saller's scale) for Lapps and Finns of Mongoloid affinity so far studied seem to have consider ably lower frequencies of individuals with middle-phalangeal hair. 174 Genetic considerations Dermatoglyphics The patterns of skin ridges of Skol t Lapps are mainly of European type (8) . The frequency of congenital dislocation of the hip among Lapps is 20-30 times as high as among other North-European populations. MONOGENIC TRAITS High Gene Frequency in Lapps The majority of the Lapp populations so far studied in Fennoscandia have some genetic traits in common. In compari - son with the Scandinavians, the Lapps have very high fre quencies of sane markers. The most striking is the gene A2, which is about 2 to 5 times as high as in the surrounding populations (Table 1). The Lapps have the highest frequency of the A2 gene in the world. The rather high frequency of this gene in other Scandinavian populations has been inter preted as a sign of Lappish gene flow to the surrounding populations (4). TABLE l the High and low gene frequencies in Lapps; the arrows indicate that gene frequencies resemble eastern ( ~ ) and western (~) traits Lapps Other Scandinavians High frequency in Lapps A2 25 (14-37) 5 NS Gml,13 15 (5-22) 8 1 2 (0-4) l? Inv 18 (13-26) 7 Acf' 50 (40-61) 25 PGM2 pC l 40 (21-55) 20 10 (2-19) 8 ADA2 12 (10-16) 7 lm 60 (58-80) 30 w (dry cerumen) 30 (18-37) 17 Low frequency in Lapps B 6 (0-32) 11 r Gc2 17 (6-29) 38 14 (2-33) 24 se 2 16 (12-21) 48 ~F 1 (0-2) 5 6 (2-9) 19 t (PTC) 35 (26-55) 50 Genetic studies on Lapps 175 Until now, it has been believed that the Ai gene had a very low frequency among Siberian North-Asiatic populations. However, a high frequency of the A2 gene has been found re cently in a north-Altayan group (Sukernik, personal communi cation). It will be very interesting to see what continued subtyping of the blood group A will show in the north Siberian populations. A high frequency of A2 in the northern USSR could be interpreted in two ways, either as an indica tion of a relationship with the Lapps, or as evidence that the A2 gene is of selective advantage in arctic and sub arctic regions. However, the A2 gene seems to be ccmpletely missing among the Ainu and the pure Eskimos. The Mongolian ga:mniaglobulin haplotype Gml ,13 has been found in all Finnish Lapp populations except Fisher Lapps. This Mongoloid trait has, however, also been found in other European populations, e.g. in Aland Islanders, Finns, and Maris (13). Figure 4 shows that among Europeans there is a distinct increase of the Gm(l) allotype frequency in the northern direction (south-north cline). Mediterranean populations, e.g. Yugoslavs and Greeks, have frequencies of 30 to 40 per cent, but in north-European populations frequencies are 60 to 70 per cent. The Lapps living in the Far North, the BO 70 EJ mTI 0 @~ 60 ~ l!i w 0 © 8 :::i © ® @©ii>22 ® '::: 50 >- <{ @ e @ __J ® 0 40 C0 C0 D LAPPS Q OTHER EUROPEANS 30 30 40 50 60 70 80 90 100% Gm (1) Figure 4 The relationship between latitude and frequency of occurrence of Gm(l) gene 176 Genetic considerations Inari Fisher Lapps and the SWedish Lapps have frequencies in good agreement with an increasing frequency of the Gm{l) allotype with latitude.