A DNA sequence-based study of the Schistosoma indicum (Trematoda: Digenea) group: population phylogeny, taxonomy and historical biogeography

  title={A DNA sequence-based study of the Schistosoma indicum (Trematoda: Digenea) group: population phylogeny, taxonomy and historical biogeography},
  author={Stephen W Attwood and Farrah A. Fatih and Mohammad H Mondal and M A Alim and S Fadjar and R P V J Rajapakse and David Rollinson},
  pages={2009 - 2020}
SUMMARY Partial (DNA) sequences were collected for 2 mitochondrial loci (Srrna and Lrrna, the rrnS and rrnL rRNA genes respectively) for Schistosoma indicum group species from 4 Southeast Asian countries. The samples included 7 populations, 4 of which were previously unstudied. In 11 cases the combination of locus and population was new. The aim of the study was to provide a phylogeny based on new independent data and multiple populations (earlier studies had mostly used a common set of field… 

DNA-Sequence Variation Among Schistosoma mekongi Populations and Related Taxa; Phylogeography and the Current Distribution of Asian Schistosomiasis

The aim is to confirm the identity of the species involved at each known focus of Mekong schistosomiasis transmission, to examine historical relationships among the populations and related taxa, and to provide data for use (a priori) in further studies of the origins, radiation, and future dispersal capabilities of S. mekongi.

A phylogeny for the pomatiopsidae (Gastropoda: Rissooidea): a resource for taxonomic, parasitological and biodiversity studies

The molecular dates and phylogenetic estimates in this study are consistent with an Australasian origin for the Pomatiopsidae and an East to West radiation via Oligocene Borneo-Philippines island hopping to Japan and then China (Triculinae arising mid-Miocene in Southeast China), and less so with a triculine origin in Tibet.

Polymorphism of the cox1 mtDNA gene from cercarial isolates of the avian schistosome Bilharziella polonica (Trematoda: Schistosomatidae) from Belarussian lakes

The phylogenetic reconstructions showed that the sample examined consists of at least two lineages of haplotypes, A and C, and diversity of the gene encoding the cytochrome C oxidase first subunit (cox1) was found on the part of the species range studied.

The ribosomal intergenic spacer (IGS) region in Schistosoma japonicum: structure and comparisons with related species.

  • Guang-Hui ZhaoD. Blair Xing-Quan Zhu
  • Biology
    Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases
  • 2011

Phylogenetic relationships among European and Asian representatives of the genus Aspidogaster Baer, 1827 (Trematoda: Aspidogastrea) inferred from molecular data

The phylogenetic relationships of European and Far Eastern representatives of the genus Aspidogaster Baer were analysed, suggesting a long-term separate existence of A. conchicola in the Russian Far East.



The phylogeny of the Schistosomatidae based on three genes with emphasis on the interrelationships of Schistosoma Weinland, 1858

The principal findings are that Ornithobilharzia and AustrobilHarzia form a sister group to the Schistosoma; mammalian schistosomes appear paraphyletic and 2 TrichobilharZia species, T. ocellata and T. szidati, seem to be synonymous.

The phylogeography of Asian Schistosoma (Trematoda: Schistosomatidae)

The S. indicum group taxa showed considerable divergence from the other Asian species and closest affinity with the African group and an Asian origin for Schistosoma is also considered.

Molecular phylogeny of Schistosoma species supports traditional groupings within the genus.

Phylogenetic relationships among 9 blood flukes were inferred from nucleotide sequences of the D1 domain of large sub unit rRNA and the V4 region of small subunit rRNA, more conserved than those examined by previous authors and thus may provide insight into deeper-level relationships.

Phylogeography of Biomphalaria glabrata and B. pfeifferi, important intermediate hosts of Schistosoma mansoni in the New and Old World tropics

The historical phylogeography of the two most important intermediate host species of the human blood fluke Schistosoma mansoni and B. pfeifferi was investigated using partial 16S and ND1 sequences from the mitochondrial genome, revealing six well‐differentiated clades within B. glabrata and four geographically overlapping Brazilian clades.

Affinities between Asian non-human Schistosoma species, the S. indicum group, and the African human schistosomes

A scenario for the evolution of the S. indicum group is discussed, with tree analyses using both distance and parsimony methods showing the group not to be monophyletic.

Molecular phylogeny of the springhare, Pedetes capensis, based on mitochondrial DNA sequences.

P phylogenetic analysis of the 12S rRNA gene resulted in strong support for the clustering of Pedetidae/Heteromyidae/Geomyidae and Muridae in one clade to the exclusion of the Hystricidae/Thryonomyidae and Sciuridae, a finding which is concordant with studies of rodent fetal membranes as well as reproductive and other anatomical features.

A phylogeny based on three mitochondrial genes supports the division of Schistosoma intercalatum into two separate species

Preliminary phylogenetic analysis of the mitochondrial data demonstrates a clear dichotomy between the 2 purported strains of Schistosoma intercalatum and it is proposed that they should be treated as distinct taxa.


This study provides little evidence concerning the ancestral molluscan or vertebrate schistosome host but does demonstrate that host switching has been an important feature of schistOSome evolution.