New look at the con-specificity of the two shrews, Crocidura gmelini and C. suaveolens from Iran; geometric morphometrics approach

Document Type : Research articles

Authors

1 Ferdowsi University of Mashhad

2 Biology Department

3 Dept. of Rodentology, Faculty of Sciences, Ferdowsi university of Mashhad, Mashhad, IRAN

4 Department of Biology

Abstract

New advances in molecular techniques are substantially reshaping our understanding of taxonomy. However, combining molecular and morphologic data is a prevailing trend towards integral taxonomy. In a genetic frame, two nominal species, Crocidura gmelini and C. suaveolens have recently been lumped into one species. This study aimed to evaluate this hypothesis morphologically. For this, 42 specimens from northern Iran classified either as C. gmelini or C. suaveolens were subjected to the geometric morphometrics analyses. Landmark based method on labial side of mandible along postcranial morphology showed profound resemblance, provide further supports for genetic results.

Keywords


Atchely, W. R., Rutledge, J. J., Cowley, D. E. 1981. Genetic components of size and shape. 2. Multivariate covariance patterns in the rat and mouse skull. Evolution, 35, 1037–1055.
 
Atchely, W. R., Newman, S., Cowley, D. E. 1988. Genetic divergence in mandible form in relation to molecular divergence in inbred mouse strains. Genetics, 120, 239–253.
 
Adams, D. C., Rohlf, F. J., Slice, D. E. 2004. Geometric morphometrics: ten years of progress following the ‘revolution’. Italian Journal of Zoology, 71(1), 5–16.
 
Bannikova, A. A., Lebedev, V. S., Kramerov, D. A., Zaitsev, M. V. 2006. Phylogeny and systematics of the Crocidura suaveolens species group: corroboration and controversy between nuclear and mitochondrial DNA markers. Mammalia, 106–119.
 
Bernal, R. R. V. 2010. Phylogeographic and morphometric studies on the Eurasian pygmy shrew Sorex minutus: insights into its evolutionary history and postglacial colonisation in Europe. PhD Thesis University of York Department of Biology.
 
Bookstein, F. L. 1991. Morphometric Tools for Landmark Data: Geometry and Biology Cambridge University Press, New York.
 
Corbet, G. B. 1978. The Mammals of the Palearctic Region: A Taxonomy Review, British Museum. Cornell University Press, London.
 
Cornette, R., Herrel, A., Cosson, J. F., Poitevin, F., Baylac, M. 2012. Rapid morpho‐functional changes among insular populations of the greater white‐toothed shrew. Biological Journal of the Linnean Society, 107(2), 322–331.
 
Cornette, R., Stoetzel, E., Baylac, M., Moulin, S., Hutterer, R., Nespoulet, R., El Hajraoui, M.A., Denys, C., Herrel, A. 2015. Shrews of the genus Crocidura from El Harhoura 2 (Temara, Morocco): The contribution of broken specimens to the understanding of Late Pleistocene–Holocene palaeoenvironments in North Africa.
Palaeogeography, Palaeoclimatology, Palaeoecology, 436, 1–8.
 
Darvish, J., Rastegar-Pouyani, E. 2012. Biodiversity conservation of reptiles and mammals in the Khorasan provinces, northeast of Iran. Progress in Biological Sciences, 2(1), 95–109.
 
Dryden, I. L., Mardia, K. V. 1998. Statistical shape analysis. John Wiley and Sons, New York.
 
Dubey, S., Salamin, N., Ohdachi, S. D., Barrière, P., Vogel, P. 2007. Molecular phylogenetics of shrews (Mammalia: Soricidae) reveal timing of transcontinental colonizations. Molecular Phylogenetics and Evolution. 44, 126–137.
 
Dubey, S., Salamin, N., Ruedi, M., Barrière, P., Colyn, M., Vogel, P., 2008. Biogeographic Origin and Radiation of the Old World Crocidurine Shrews (Mammalia: Soricidae) Inferred from Mitochondrial and Nuclear Genes. Molecular Phylogenetics and Evolution. 48: 953–963.
 
Esmaeili, H. R., Gholamhosseini, G., Zareian, H., Kryštufek, B. 2008. Noteworthy range extension of two white-toothed shrews in Iran: Crocidura suaveolens and Suncus etruscus. Zoology in the Middle East, 45, 105–107.
 
Etemad, E. 1985. The Mammals of Iran. Volume 3. Department of Environment, Tehran. (in Farsi with a summary in English).
Goodwin, G. G. 1940. Mammals collected by the Legendre 1938 IRAN expedition. American Museum Novitates.
 
Hoffmann, R. S. 1996. In Contributions in Mammalogy: A Memorial Volume Honoring Dr. J. Knox, Lubbok: Texas Tech. Univ, pp. 155–168.
 
Hutterer, R. 2005. Order Soricomorpha. In: Mammal Species of the World: A Taxonomicand Geographic Reference. Johns Hopkins University Press. 1, 220–311.
 
Hutterer, R., Amori, G., Kryštufek, B., Yigit, N., Mitsain, G., Palomo, L. J. 2008. Crocidura suaveolens. The IUCN Red List of Threatened Species 2008: e.T29656A9510462. http://dx.doi.org/ 10.2305/IUCN.UK.2008.RLTS.T29656A9510462.en.
 
Hutterer, R. 2008. Crocidura gmelini. The IUCN Red List of Threatened Species 2008: e.T41319A10442560.
 
Jiang, X. L., Hoffmann, R. S. 2001. A revision of the white-toothed shrews (Crocidura) of southern China. Journal of Mammalogy, 82(4), 1059–1079.
 
Klingenberg, C. P. 2011. MorphoJ: an integrated software package for geometric morphometrics. Molecular Ecology Resourse, 11, 353–357.
 
Leroy, A., Montuire, S., Marchand, D. 2004. Analysis of teeth outlines: a morphometric tool for distinguishing three species of Crocidurinae (Soricidae, Insectivora, Mammalia) in France. Journal of Natural History. 38, 259–267.
 
Jenkins, P. D., Lunde, D. P., Moncreff C. B. 2009. Descriptions of New Species of Crocidura (Soricomorpha: Soricidae) from Mainland Southeast Asia, with Synopses of Previously Described Species and Remarks on Biogeography. Bulletin American Museum of Natural History, 331, 356–405.
 
Motokawa, M., Yu, H. T., Harada, M. 2005. Diversification of White-Toothed Shrews of Genus Crocidura (Insectivora: Soricidae) In East and Southeast Asia. Mammal Study, 30, 553–564.
 
Rohlf, F. J., Slice, D. E. 1990. Extensions of the Procrustes method for the optimal superimposition of landmarks. Systematic Zoology, 39: 40–59.
 
Rohlf, F. J. 2010. TpsDig 2, version 2.16. Ecology and Evolution. SUNY at Stony Brook.
 
Rychlik, L., Ramalhinho, G., Polly, P. D. 2006. Response to environmental factors and competition: skull, mandible and tooth shapes in Polish water shrews (Neomys, Soricidae, Mammalia). Journal of Zoological Systematics and Evolutionary Research, 44(4), 339–351.
 
Sparks, C. S., Jantz R. L. 2002. A reassessment of human cranial plasticity: Boas revisited. - Proceedings of the National Academy of the United States of America (PNAS), 99, 1436–1439.
 
Symonds, M. R. E. 2005. Phylogeny and life histories of the ‘Insectivora’: controversies and consequences. Biological Review, 80, 93–128.
 
White, T. A., Searle, J. B. 2008. Mandible asymmetry and genetic diversity in islandpopulations of the common shrew, Sorex araneus. Journal of Evolutionary Biology. 21 (2), 636–641.
 
Ziaie, H. 1996. A Field Guide to the Mammals of Iran. Department of Environment. Tehran. (in Farsi).
 
Zelditch, M. L., Donald, L., Swiderski, H., Sheets, D. Fink, W. L. 2004. Geometric Morphometrics for Biologists: A Primer Elsevier Academic Press, New York and London, 437p.
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