Genetic differences in the rat lungworm, Angiostrongylus cantonensis (Nematoda: Angiostrongylidae), in Thailand. 2015

S Dusitsittipon, and U Thaenkham, and D Watthanakulpanich, and P Adisakwattana, and C Komalamisra
Department of Helminthology,Faculty of Tropical Medicine, Mahidol University,Bangkok,Thailand.

This study surveyed the genetic differences among Angiostrongylus cantonensis (A. cantonensis) using the mitochondrial cytochrome b (cytb) gene. Partial cytb sequences were determined for 91 worms from eight locations in Thailand. Using morphological techniques, the nematodes were found to be A. cantonensis. Phylogenetic analysis found two main clades, which were subdivided into four subclades (clusters). Haplotype network analysis showed that 11 distinct cytb haplotypes were also present in four groups of A. cantonensis. There was no observable relationship between the genetic differentiation of gene flow and geographical distance. This low genetic variation and geographical distribution of A. cantonensis in each location indicates a founder effect, which may have resulted from multiple independent origins, and suggests that haplotypes migrated from endemic areas via human-related activities.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D004197 Disease Reservoirs Animate or inanimate sources which normally harbor disease-causing organisms and thus serve as potential sources of disease outbreaks. Reservoirs are distinguished from vectors (DISEASE VECTORS) and carriers, which are agents of disease transmission rather than continuing sources of potential disease outbreaks. Humans may serve both as disease reservoirs and carriers. Disease Reservoir,Human Disease Reservoirs,Infectious Disease Reservoir,Reservoirs of Infection,Infectious Disease Reservoirs,Disease Reservoir, Human,Disease Reservoir, Infectious,Disease Reservoirs, Human,Human Disease Reservoir,Infection Reservoir,Infection Reservoirs,Reservoir, Disease,Reservoir, Infectious Disease,Reservoirs, Human Disease
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012908 Snails Marine, freshwater, or terrestrial mollusks of the class Gastropoda. Most have an enclosing spiral shell, and several genera harbor parasites pathogenic to man. Snail
D013785 Thailand Formerly known as Siam, this is a Southeast Asian nation at the center of the Indochina peninsula. Bangkok is the capital city. Kingdom of Thailand,Siam
D014644 Genetic Variation Genotypic differences observed among individuals in a population. Genetic Diversity,Variation, Genetic,Diversity, Genetic,Diversities, Genetic,Genetic Diversities,Genetic Variations,Variations, Genetic
D017185 Angiostrongylus cantonensis A species of parasitic nematodes distributed throughout the Pacific islands that infests the lungs of domestic rats. Human infection, caused by consumption of raw slugs and land snails, results in eosinophilic meningitis.
D017206 Strongylida Infections Infections with nematodes of the order STRONGYLIDA. Stephanurus dentatus Infections,Syngamiasis,Angiostrongylus Infections,Infections, Stephanurus dentatus,Infections, Strongylida,Angiostrongylus Infection,Infection, Angiostrongylus,Infection, Stephanurus dentatus,Infection, Strongylida,Stephanurus dentatus Infection,Strongylida Infection,Syngamiases

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