Sarcocystis menglaensis n. sp. (Apicomplexa: Sarcocystidae) from Williamson’s mouse deer Tuagulus williamsoni (Kloss) (Artiodactyla: Tragulidae)

Williamson’s mouse deer, Tuagulus williamsoni (Kloss), is one of the smallest ungulates among tragulid species found in northern Thailand, and Yunnan Province, China.

 Jun-Jie Hu . Hong-Liang Li . Si Huang . Ming-Yong Chen . Gerald W. Esch . Zhao-Qing Yang . Jing-Ling Song

J.-J. Hu. H.-L. Li.  S. Huang. M.-Y. Chen School of Biological Sciences, Yunnan University, Kunming 650091, China
  e-mail: jjhu@ynu.edu.cn
J.-J. Hu Southeast Asia Biodiversity Research Institute, Chinese Academy of Science, Menglun 666303, China
G. W. Esch Department of Biology, Wake Forest University, Winston-Salem, NC 27106, USA
Z.-Q. Yang. J.-L. Song Kunming Medical University, Kunming 650500, China
 
PubYear : 2017
Volume :   94
Publication Name : Syst Parasitol 
Page number : 299–304 

Abstract: Williamson’s mouse deer, Tuagulus williamsoni (Kloss), is one of the smallest ungulates among tragulid species found in northern Thailand, and Yunnan Province, China. Here we describe Sarcocystis menglaensis n. sp., infecting two of 14 (14.3%) Williamson’s mouse deer from south-western China. By light microscopy, sarcocysts of S. menglaensis are microscopic, up to 2,170 lm in length, and have a striated sarcocyst wall with 1.5–3.6 lm long palisadelike protrusions. Transmission electron microscopy observations revealed that sarcocyst wall is of ‘‘type 10f’’, and has numerous villar protrusions folded over the cyst wall. The villar protrusions contained microtubules dispersed throughout the protrusions. Phylogenetic analysis based on 18S rDNA and mitochondrial cox1 gene sequences indicated that S.menglaensis shared a close affinity with species of Sarcocystis Lankester, 1982 from ruminants, which utilise felids as definitive hosts.