Catalog Home Page

Eimeria tiliquae n. sp. (Apicomplexa: Eimeriidae) from the shingleback skink (Tiliqua rugosa rugosa)

Yang, R., Brice, B., Ryan, U. and Bennett, M.D. (2013) Eimeria tiliquae n. sp. (Apicomplexa: Eimeriidae) from the shingleback skink (Tiliqua rugosa rugosa). Experimental Parasitology, 133 (2). pp. 144-149.

[img]
Preview
PDF - Authors' Version
Download (1MB)
Link to Published Version: http://dx.doi.org/10.1016/j.exppara.2012.11.012
*Subscription may be required

Abstract

A new species, Eimeria tiliquae n. sp. is described from a shingleback skink (Tiliqua rugosa rugosa). Sporulated oocysts (n=. 50) are spherical to subspherical, with colourless trilaminate oocyst wall, 0.7 ± 0.1 (0.5-0.75) thick. Oocyst with 4 spheroidal to subspheroidal sporocysts. Oocyst length, 13.7 ± 0.9 (12.0-16.3); oocyst width, 12.8 ± 0.9 (11.5-15.0); oocyst length/width (L/W) ratio, 1.07 ± 0.05 (1.0-1.2). Micropyle, oocyst residuum and polar granule absent. Sporocysts with globular sporocyst residuum and 2 sporozoites. Sporocyst length, 6.0 ± 0.6 (5.0-7.5); sporocyst width, 5.4 ± 0.6 (4.0-7.0); sporocyst L/W ratio, 1.11 ± 0.11 (1.0-1.5). Stieda, parastieda and substieda bodies absent. Phylogenetic analysis of 18S rRNA sequences indicated that E. tiliquae n. sp. shared 96.4-96.5% genetic similarity to E. tropidura, its closest relative. Reptile-derived sequences were not available for the mitochondrial cytochrome oxidase gene (COI) and phylogenetic analysis at this locus placed E. tiliquae n. sp. in a clade by itself but grouping closest (92% similarity) with a novel isolate from a King's skink (Egernia kingii) from Western Australia. Based on morphological and molecular data, this isolate is a new species of coccidian parasite that to date has only been found in shingleback skinks.

Publication Type: Journal Article
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Publisher: Academic Press
Copyright: © 2012 Elsevier Inc.
URI: http://researchrepository.murdoch.edu.au/id/eprint/12554
Item Control Page Item Control Page

Downloads

Downloads per month over past year