Abstract
Dental anomalies in the Japanese mole, Mogera wogura Temminck, 1842, from northeast China and the Primorsky region of Russia were examined based on 241 specimens. The most frequent dental anomaly was oligodonty, i.e., missing P2 (18 cases) or P3 (one case). Supernumerary teeth were observed in three cases, two of which were characterized by abnormal shapes. Morphological abnormalities in teeth (six cases) and an asymmetrically curved rostrum (one case) were also observed. Dental anomalies were found at higher frequencies in populations near the northern range limit of the species. This was not caused by size effects. We suggest that the high incidence of dental anomalies was the result of genetic drift, which increases in marginal populations. Considering the nature of subterranean mammals, our results suggest that the high frequency of dental anomalies in a marginal population could have initiated the evolution of dental formulae if parapatric or peripatric speciation occurs in such populations.
Similar content being viewed by others
References
Abe H, Shiraishi S, Arai S (1991) A new mole from Uotsuri-jima, the Ryukyu Islands. J Mamm Soc Jpn 15:47–60
Andersen LW, Lyndersen C, Frie AK, Rosing-Asvis A, Hauksson E, Kovacs KM (2011) A population on the edge: genetic diversity and population structure of the world’s northernmost harbor seals (Phoca vitulina). Biol J Linn Soc 102:420–439
Eckert CG, Samis KE, Lougheed CL (2008) Genetic variation across species’ geographical ranges: the central–marginal hypothesis and beyond. Mol Ecol 17:1170–1188
Federoff NE, Nowak RM (1998) Cranial and dental abnormalities of the endangered red wolf Canis rufus. Acta Theriol 43:293–300
Frisman LV, Korobitsyna KV, Kartavtseva IV, Sheremetyeva IN, Vouta LL (2009) Voles (Microtus Schrank, 1798) of the Russian Far East: allozymic and karyological divergence. Russ J Genet 45:804–812
Futuyma DJ (1998) Evolutionary Biology, 3rd edn. Sinauer Associates, Inc., Sunderland
Gomercic T, Guzvica G, Gomercic MD, Frkovic A, Pavlovic D, Kusak J, Sindicic M, Huber D (2009) Variation in teeth number, teeth and skull disorders in Eurasian lynx, Lynx lynx from Croatia. Folia Zool 58:57–65
Hall ER (1940) Supernumerary and missing teeth in wild mammals of the orders Insectivora and Carnivora, with some notes on disease. J Dent Res 19:103–143
Hardie DC, Hutchings JA (2010) Evolutionary ecology at the extremes of species’ ranges. Environ Rev 18:1–20
Hoffmann RS, Lunde D (2008) Order Soricomorpha. In: Smith AT, Xie Y (eds) A guide to the mammals of China. Princeton University Press, Princeton, pp 297–326
Hutterer R (2005) Order Soricomorpha. In: Wilson DE, Reeder DM (eds) Mammal species of the world, 3rd edn. The Johns Hopkins University Press, Baltimore, pp 220–311
Jogahara T, Koyasu K, Oda S, Kawai T, Hanamura (2007) Quest for the cause of oligodontia in Suncus murinus (Soricomorpha, Soricidae): morphological re-examination. Arch Oral Biol 52:836–843
Kartavtseva IV, Sheremetyeva IN, Korobitsina VK, Nemkova GA, Konovalova EV, Korablev VV, Voyta LL (2008) Chromosomal forms of Microtus maximowiczii (Schrenck, 1859) (Rodentia, Cricetidae): variability in 2n and NF in different geographic regions. Russ J Theriol 7:89–97
Kawada S (2005) The historical notes and taxonomic problems of East Asian moles, Euroscaptor, Parascaptor and Scaptochirus, of continental Asia (Insectivora, Talpidae). Mamm Stud 30:S5–S11
Kawada S, Koyasu K, Zholnerovskaya EI, Oda S (2006) Analysis of dental anomalies in the Siberian mole, Talpa altaica (Insectivora, Talpidae). Arch Oral Biol 51:1029–1039
Kawada S, Endo E, Oda, S, Koyasu K (2011) Dental Anomalies in four mole species of the genus Mogera (Insectivora, Talpidae) from Japan. Bull Natl Mus Nat Sci, Ser A 37:63–72
Kawecki TJ (2008) Adaptatin to marginal habitats. Annu Rev Ecol Evol Syst 39:321–342
Knyazev SP, Kulikova AV, Axenovich TI, Sulchenko YS (2003) Inheritance of Oligodontia in Kerry Blue Terrier Dog. Russ J Genet 39:669–675
Krystufek B, Spitzenberger F, Kefelioglu H (2001) Description, taxonomy, and distribution of Talpa davidiana. Mamm Biol 66:135–143
Lacey EA (2000) Spatial and social sysmems of subterranean rodents: opportunities and constraints for evolutionary diversification. In: Lacey EA, Patton JL, Cameron GN (eds) Life underground: the biology of subterranean rodents. The University of Chicago Press, Chicago, pp 257–296
Line S (2003) Variation of tooth number in mammalian dentition: connecting genetics, development, and evolution. Evol Dev 5:295–304
Lomolino MV, Riddle BR, Brown JH (2005) Biogeography, 3rd edn. Sinauer Associates, Inc., Sunderland
Martin GM (2007) Dental anomalies in Dromiciops gliroides (Microbiotheria, Microbiotheriidae), Caenolestes fuliginosus and Rhyncholestes raphanurus (Paucituberculata, Caenolestidae). Rev Chil Hist Nat 80:393–406 [In Spanish with English abstract]
Massarini AI, Barros MA, Ortells MO, Reig OA (1991) Chromosomal polymorphism and small karyotypic differentiation in a group of Ctenomys species from Central Argentina (Rodentia: Octodontidae). Genetica 83:131–144
Miles A, Grigson C (1990) Colyer’s variation and disease of the teeth of animals, revised edition. Cambridge University Press, Cambridge
Motokawa M, Lin LK, Cheng HC, Harada M (2001) Taxonomic status of the Senkaku mole, Nesoscaptor uchidai, with special reference to variation in Mogera insularis from Taiwan (Mammalia: Insectivora). Zool Sci 18:733–740
Nentvichova M, Andera M (2008) Dental anomalies and dental variations in the red fox Vulpes vulpes in the Czech Republic. Acta Theriol 53:217–228
Nevo E (1999) Mosaic evolution of subterranean mammals. Oxford University Press, Oxford
Nevo E (2001) Adaptive radiation of blind subterranean mole rats. Backhuys Publishers, Leiden
Ohtaishi N (1986) Mammalian teeth. In: Goto M, Ohtaishi N (eds) Comparative odontology—morphology, function and evolution of tooth in vertebrates. Ishiyaku Publishers, Inc, Tokyo, pp 123–134 [In Japanese]
Okhotina M (1966) Far-eastern mole. Nauka, Moscow [In Russian]
Pan Q, Wang Y, Yan K (2007) A field guide to the mammals of China. China Forestry Publishing House, Beijing
Pavlinov IY, Borisenko AV, Kruskop SV, Yahontov EL (1995) Mammals of Eurasia, II, non-Rodentia. Moscow University Press, Moscow [In Russian]
Schwartz MK, Mills LS, Ortega Y, Ruggiero LF, Allendorf FW (2003) Landscape location affects genetic variation of Canada lynx (Lynx Canadensis). Mol Ecol 12:1807–1816
Sheremetyeva IN, Kartavtseva IV, Frisman LV (2006) Karyological and allozyme variability of far eastern voles Microtus fortis Büchner, 1889 (Cricetidae, Rodentia) from the Russian Far East. Russ J Genet 42:681–690
Sheremetyeva IN, Kartavtseva IV, Voyta LL, Kryukov AP, Haring E (2009) Morphometric analysis of intraspecific variation in Microtus maximowiczii (Rodentia, Cricetidae) in relation to chromosomal differentiation with reinstatement of Microtus gromovi Vorontsov, Boeskorov, Lyapunova et Revin, 1988, stat. nov. J Zool Syst Evol Res 47:42–48
Smolen M, Bickham JW (1994) Chromosomal variation in pocket gophers (Geomys) detected by sequential G-, R-, and C-band analysis. Chromosom Res 2:343–353
Steinberg EK, Patton JL (2000) Genetic structure and the geography of speciation in subterranean rodents: opportunities and constraints for evolutionary diversification. In: Lacey EA, Patton JL, Cameron GN (eds) Life underground: the biology of subterranean rodents. The University of Chicago Press, Chicago, pp 301–331
Suchentrunk F, Markowski J, Janiszewski T, Hartl GB (1992) Dental and cranian anomalies in Austrian and Polish brown hare Lepus europaeus populations. Acta Theriol 37:241–257
Szuma E (2007) Geography of dental polymorphism in the red fox Vulpes vulpes and its evolutionary implications. Biol J Linn Soc 90:61–84
Szuma E (2008) Evolutionary and climatic factors affecting tooth size in the red fox Vuples vulpes in the Holarctic. Acta Theriol 53:289–332
Ueda Y (1959) About dental anomalies of moles. Hiroshima Daigaku Igakubu Kaibougaku Daiichikouza Gyousekisyu 5:1–6 [in Japanese]
Whitlock MC (2004) Selection and drift in metapopulations. In: Hanski I, Gaggiotti OE (eds) Ecology, genetics, and evolution of metapopulations. Elsevier, Oxford, pp 153–173
Wolsan M (1984) The origin of extra teeth in mammals. Acta Theriol 29:128–133
Yokohata Y (1997) A case of pelage-color variant in the large Japanese mole, Mogera wogura, in Hiwa, Hiroshima Prefecture, Japan. Misc Rep Hiwa Mus Nat Hist 35:195–196 [in Japanese]
Zhang Y (1997) Distribution of mammalian species in China. China Forestry Publishing House, Beijing
Ziegler AC (1971) Dental homologies and possible relationships of recent Talpidae. J Mammal 52:50–68
Acknowledgments
We thank V. Lebedev (MU) and T. Hiraoka (YIO) for allowing us to study specimens under their care. A part of this study was conducted during AK’s visiting professorship to the Kyoto University Museum. MA is a recipient of a scholarship from the Mishima Kaiun Memorial Foundation. This study was supported, in part, by a Japan Society for the Promotion of Science Grant-in-Aid for Scientific Research (no. 21370033), JSPS AA Science Platform Program, and the Global COE Program A06 (Ministry of Education, Culture, Sports, Science, and Technology, Japan) to Kyoto University.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by: Jan M. Wójcik
Rights and permissions
About this article
Cite this article
Asahara, M., Kryukov, A. & Motokawa, M. Dental anomalies in the Japanese mole Mogera wogura from northeast China and the Primorsky region of Russia. Acta Theriol 57, 41–48 (2012). https://doi.org/10.1007/s13364-011-0050-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13364-011-0050-0