Genetic and Morphologic Identification of Spirometra ranarum in Myanmar
- Authors
- Jeon, Hyeong-Kyu; Park, Hansol; Lee, Dongmin; Choe, Seongjun; Kang, Yeseul; Bia, Mohammed Mebarek; Lee, Sang-Hwa; Sohn, Woon-Mok; Hong, Sung-Jong; Chai, Jong-Yil; Eom, Keeseon S.
- Issue Date
- Jun-2018
- Publisher
- KOREAN SOC PARASITOLOGY, SEOUL NATL UNIV COLL MEDI
- Keywords
- Spirometra ranarum; spargana; molecular detection; cox1; nad1; Myanmar
- Citation
- KOREAN JOURNAL OF PARASITOLOGY, v.56, no.3, pp 275 - 280
- Pages
- 6
- Journal Title
- KOREAN JOURNAL OF PARASITOLOGY
- Volume
- 56
- Number
- 3
- Start Page
- 275
- End Page
- 280
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/2142
- DOI
- 10.3347/kjp.2018.56.3.275
- ISSN
- 0023-4001
1738-0006
- Abstract
- In the present study, we identified a Spirometra species of Myanmar origin (plerocercoid) by molecular analysis using mitochondrial cox1 and nad1 genes, as well as by morphological observations of an adult tapeworm. Spargana specimens were collected from a paddy-field in Taik Kyi Township Tarkwa Village, Yangon, Myanmar in December 2017. A total of 5 spargana were obtained from 20 frogs Hoplobatrachus rugulosus; syn: Rana rugulosa (Wiegmann, 1834) or R. tigrina (Steindachner, 1867). The plerocercoids were used for experimental infection of a dog. After 4 weeks of infection, an adult tapeworm was recovered from the intestine of the dog. Morphologically, the distinct features of Spirometra sp. (Myanmar origin) relative to S. erinaceieuropaei and S. decipiens include a uterine morphology comprising posterior uterine coils that larger than the terminal uterine ball and coiling of the uteri diagonally (swirling) rather than spirally. The cox1 sequences (1,566 bp) of the Myanmar-origin Spirometra species showed 97.9% similarity to a reference sequence of S. decipiens (GenBank no. KJ599679) and 90.5% similarity to a reference sequence of S. erinaceieuropaei (GenBank no. KJ599680). Phylogenetic tree topologies were identical and presented high confidence level of values for the 3 major branches of the 3 Spirometra species in cox1 and nad1 genes. These results indicated that Myanmar-origin Spirometra species coincided with those of S. ranarum and may be considered as a valid species.
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