Biosystematic study in population of green toad Bufotes variabilis (Pallas, 1769) In the Northern and Southern habitats of Khuzestan province

Document Type : (original research)

Authors

Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran

Abstract

 Green toad (Bufotes variabilis) is the most successful species of the Bufonidae family distributed throughout Iran due to its high ecological tolerance.  In this study, the populations of this species in the northern and southern regions of Khuzestan province were studied with emphasis on microclimate differences and sea level elevation. The results showed that: sex ratio in Northern Province was in favor of females and in south in favor of males.  Results of multivariate analysis of variance confirmed the existence of sexual dimorphy in the species populations of both regions .Demographic separation between the northern and southern populations of both sexes was confirmed.Female populations were completely separated at Shush and Shavour stations, and at Shadegan and Khorramshahr stations, respectively.In the male population, Hamidieh and Shadegan stations had the least similarity and Shavour, Shadegan and Khorramshahr stations were the most similar. The number of chromosomes
was 2n=22 in both regions and no polyploidy was observed.

Keywords

References

  1. Batista, V.; Carranza, S.; Carretero, M.A. and Harris, D.J., 2006. Genetic variation within Bufo viridis: evidence from mitochondrial 12S and 16S rRNA DNA sequences. Butlletí de la Societat Catalana d’Herpetologia. Vol. 17, pp: 24-33.
  2. Borkin, L.J.; Rosanov, J.M. and Litvinchuk, S.N., 2000. Nuclear DNA content in some green toads (Bufo viridis complex) of Turkey and Iran. Russ. J. Herpetol. Vol. 7, No. 3, pp: 171-180.
  3. Eskandarzadeh, N.; Rastegar pouyani, N.; Rastegar pouyani, E.; Fathinia, B.; Hamadi, K. and Gholamifard, A., 2018. Annotated checklist of the endemic tetrapoda species of iran. Zoosytema. Vol. 40, No. 24, pp: 507-537.
  4. Fakharzadeh, F.; Darvish, J.; Kami, H.; Ghasemzadeh, F. and Rastegar Pouyani, E., 2015. New karyological and Morphometric Data on poorly know Bufo surdus and Bufo lurisus in comparison with Data of Diploid Green Toads of the Bufo viridis complex from South of Iran. Asian Herpetological Research. Vol. 5, No. 3, pp: 168-178.
  5. Green, D.M. and Session, K., 1991. Amphibian cytogenetic and evolution academic press. inc. san diego, California. 456 p.
  6. Ozdemir, N. and Lkutru, P.B., 2007. Intraspecfic variation of Turkish GreenToads, Bufo viridis (Pesudepidalea) LAURENTI.1768, based on 16 Sribosomal RNA sequences. Herpetozoa. Vol. 20, No. 2, pp: 3-10.
  7. Pierce, S.E.; Hotchinson, J.R. and Clack, J.A., 2013. Historical perspectives on the evolution of tetrapodomorph movement. Vol. 1, No. 2, pp: 1-22.
  8. Saba, N. and Tripathi, N.K., 2012. Meiotic chromosomes and karyotype of Bufo viridis (Laurenti, 1768) from Jammu and Kashmir. Bull. Environ. Pharmacol. Life Sci. Vol. 1, No. 6, pp: 21-25.
  9. Shffer, H.B.; Gidis, M.; McCartney-Melstand, E.; Neal, K.M.; Oyamaguchi, H.M.; Tellez, M.; Sinsch, U.; Leskovar, C.; Drobig, A.; Konig, A. and Grosse, W.R., 2007. Life-history traits in green toad (Bufo viridis) populations: indicators of habitat quality. Canadian journal of zoology. Vol. 85, No. 5, pp: 665-673.
  10. Stock, M.A.; Frynta, D.A.; Grosse, W.R.; Steinlein, C.L. and Schmid, M., 2001. A review of the distribution of diploid, triploid and tetraploid green toads (Bufo viridis complex) in Asia including new data from Iran and Pakistan. Asiatic Herpetol. Res. Vol. 9, pp: 77-100.
  11. Stock, M.; Steinlein, C.; Lamatsch, D.; Schartl, M. and Schmid, M., 2005. Multiple origins of tetraploid taxa in Eurasian Bufo viridis subgroup. Genetica. Vol. 124, pp: 255-272.
  12. www. Amphibia species of the world. 2019.
Journal of Animal Environment
Volume 12, Issue 4
December 2020
Pages 261-270

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