Publication: Morphological characteristics and phylogenetic trends of trematode cercariae in freshwater snails from Nakhon Nayok Province, Thailand
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Issued Date
2017
Resource Type
File Type
application/pdf
ISSN
234001
Other identifier(s)
2-s2.0-85016092373
Rights Holder(s)
Scopus
Bibliographic Citation
Korean Journal of Parasitology. Vol 55, No.1 (2017), p.47-54
Suggested Citation
Chontananarth T., Tejangkura T., Wetchasart N., Chimburut C. Morphological characteristics and phylogenetic trends of trematode cercariae in freshwater snails from Nakhon Nayok Province, Thailand. Korean Journal of Parasitology. Vol 55, No.1 (2017), p.47-54. doi:10.3347/kjp.2017.55.1.47 Retrieved from: https://hdl.handle.net/20.500.14740/4255
Abstract
The prevalence of cercarial infection in freshwater snails and their evolutionary trends were studied in Nakhon Nayok province, Thailand. A total of 2,869 individual snails were examined for parasitic infections. The results showed that 12 snail species were found to host larval stages of trematodes with an overall prevalence of 4.7%. The infected specimens included 7 types at the cercarial stage; cercariae, megalurous cercariae, echinostome cercariae, furcocercous cercariae, parapleurolophocercous cercariae, virgulate cercariae, and xiphidiocercariae. Regarding molecular identification, ITS2 sequence data of each larval trematode were analyzed, and a dendrogram was constructed using the neighbor-joining method with 10,000 replicates. The dendrogram was separated into 6 clades (order/family), including Echinos-tomatida/Echinostomatidae, Echinostomatida/Philophthalmidae, Opisthorchiida/Heterophyidae, Plagiorchiida/Prostho-gonimidae, Plagiorchiida/Lecithodendriidae, and Strigeatida/Cyathocotylidae. These findings were used to confirm morphological characteristics and evolutionary trends of each type of cercariae discovered in Nakhon Nayok province. Furthermore, this investigation confirmed that the ITS2 data of cercariae could be used to study on phylogenetic relationships or to determine classification of this species at order and/or family level when possible. © 2017, Korean Society for Parasitology and Tropical Medicine.
Subject(s)
Internal transcribed spacer 2
Fresh water
Helminth DNA
Ribosomal spacer DNA
Article
Cercaria
Controlled study
Echinostomatidae
Heterophyidae
Nonhuman
Opisthorchiidae
Parasite prevalence
Phylogenetic tree
Phylogeny
Snail
Thailand
Trematodiasis
Anatomy and histology
Animal
Chemistry
Classification
Cluster analysis
DNA sequence
Genetics
Isolation and purification
Microscopy
Parasitology
Phylogeny
Prevalence
Trematode
Animals
Cluster Analysis
DNA, Helminth
DNA, Ribosomal Spacer
Fresh Water
Microscopy
Phylogeny
Prevalence
Sequence Analysis, DNA
Snails
Thailand
Trematoda
Fresh water
Helminth DNA
Ribosomal spacer DNA
Article
Cercaria
Controlled study
Echinostomatidae
Heterophyidae
Nonhuman
Opisthorchiidae
Parasite prevalence
Phylogenetic tree
Phylogeny
Snail
Thailand
Trematodiasis
Anatomy and histology
Animal
Chemistry
Classification
Cluster analysis
DNA sequence
Genetics
Isolation and purification
Microscopy
Parasitology
Phylogeny
Prevalence
Trematode
Animals
Cluster Analysis
DNA, Helminth
DNA, Ribosomal Spacer
Fresh Water
Microscopy
Phylogeny
Prevalence
Sequence Analysis, DNA
Snails
Thailand
Trematoda
