Hydatigera taeniaeformis in urban rats (Rattus rattus) in Faisalabad, Pakistan

Alvi, Mughees Aizaz; Li, Li; Ohiolei, John Asekhaen; Qamar, Warda; Saqib, Muhammad; Tayyab, Muhammad; Altaf, Javaria; Ashfaq, Khurram; Ali, Hassan; Jamal, Muhammad; Wahab, Abdul; Alvi, Anum Aizaz; Usman, Muhammad; Bajwa, Muhammad Rashid Khalid; Fu, Bao‐Quan; Yan, Hong‐Bin; Jia, Wan‐Zhong

doi:10.1016/j.meegid.2021.104873

Cited by 7 publications

(9 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Taken together, the molecular evidence presented here supports the hypothesis that H. taeniaeformis represents a species complex (13,17). The taxonomy of H. taeniaeformis is often insufficient based on morphological features and their hosts or geographical origins; therefore, accurate identification and differentiation of H. taeniaeformis can sometimes be challenging (7,13,36). In the present study, the characterization of the mt genome of HTLC in China also stimulates a reassessment of the phylogenetic relationships of H. taeniaeformis using mt genomic/proteomic datasets.…”

Section: Discussionsupporting

confidence: 66%

“…In a recent revision, the resurrection of the genus Hydatigera was proposed based on molecular evidence (6). The cat tapeworm H. taeniaeformis (formerly referred to as T. taeniaeformis), the type species of the genus Hydatigera, is the most common tapeworm of cats and rats (7). Although the zoonotic significance of this tapeworm remains unclear, it has also been recorded in humans in unusual circumstances (8).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative Mitochondrial Genomic Analysis Robustly Supported That Cat Tapeworm Hydatigera taeniaeformis (Platyhelminthes: Cestoda) Represents a Species Complex

Wang

Deng

et al. 2022

Front. Vet. Sci.

View full text Add to dashboard Cite

Hydatigera taeniaeformis is one of the most common intestinal tapeworms that has a worldwide distribution. In this study, we sequenced the complete mitochondrial (mt) genome of H. taeniaeformis from the leopard cat (designated HTLC) and compared it with those of H. taeniaeformis from the cat in China (designated HTCC) and Germany (designated HTCG). The complete mt genome sequence of HTLC is 13,814 bp in size, which is 167 bp longer than that of HTCC and is 74 bp longer than that of HTCG. Across the entire mt genome (except for the two non-coding regions), the sequence difference was 3.3% between HTLC and HTCC, 12.0% between HTLC and HTCG, and 12.1% between HTCC and HTCG. The difference across both nucleotide and amino acid sequences of the 12 protein-coding genes was 4.1 and 2.3% between the HTLC and HTCC, 13.3 and 10.0% between the HTLC and HTCG, and 13.8 and 10.6% between the HTCC and HTCG, respectively. Phylogenetic analysis based on concatenated amino acid sequences of 12 protein-coding genes showed the separation of H. taeniaeformis from different hosts and geographical regions into two distinct clades. Our analysis showed that the cat tapeworm H. taeniaeformis represents a species complex. The novel mt genomic datasets provide useful markers for further studies of the taxonomy and systematics of cat tapeworm H. taeniaeformis.

show abstract

Section: Discussionsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Comparative Mitochondrial Genomic Analysis Robustly Supported That Cat Tapeworm Hydatigera taeniaeformis (Platyhelminthes: Cestoda) Represents a Species Complex

Wang

Deng

et al. 2022

Front. Vet. Sci.

View full text Add to dashboard Cite

show abstract

“…Similarly, molecular studies of Hydatigera taeniaeformis s.l. from areas in Asia and Africa have been conducted mainly on intermediate hosts from the family Muridae [ 2 , 13 , 16 , 17 ] and several individuals of Apodemus spp. that were found to be infected with H. taeniaeformis s.s. [ 2 , 27 ], a parasite species for which members of the family Muridae (mainly rats) are considered suitable hosts.…”

Section: Discussionmentioning

confidence: 99%

“…According to the median-joining haplotype network in the present study, H. kamiyai haplotypes from this study were clustered with other haplotypes from Europe and had at least 25 mutation steps from Asian, African and Australian haplotypes of H. taeniaeformis s.s., indicating clear molecular distinction of two species. Alvi et al [ 17 ] also detected 20 mutation steps from the Pakistani H. taeniaeformis s.s. sequences compared to the European isolates ( H. kamiyai ). Pairwise divergences of our samples ( H. kamiyai ) with Asian, African and Australian isolates ( H. taeniaeformis s.s.) from GenBank were high, ranging from 9.4% to 12.9%, supporting existence of two distinct taxa.…”

Section: Discussionmentioning

confidence: 99%

“…The authors suggested that H. kamiyai in Europe has a heterogeneous genetic structure and the different haplotypes are widely distributed across the continent, which could indicate a long and undisturbed presence of this ubiquitous parasite. The haplotype diversity of H. taeniaeformis s.s. from Pakistan composed of 38 cox1 sequences was 0.757, with 10 haplotypes [ 17 ], while the greatest diversity was found in Chinese isolates, where 10 haplotypes were recorded from 13 cox1 sequences [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Cryptic species Hydatigera kamiyai and other taeniid metacestodes in the populations of small mammals in Serbia

Miljević¹,

Rajičić²,

Umhang³

et al. 2023

Parasites Vectors

View full text Add to dashboard Cite

Background Hydatigera (Cestoda: Taeniidae) is a recently resurrected genus with the description of a new species, Hydatigera kamiyai, a cryptic entity within the Hydatigera taeniaeformis species complex. Rodents are intermediate hosts and correct taxonomic identification of H. taeniaeformis sensu lato (s.l.) species is difficult without the use of molecular methods. The aim of this study was to identify and explore the genetic diversity of Hydatigera and other taeniid species. Methods Ten different small mammals species (856 individuals) (Rattus rattus, three Apodemus, three Arvicolinae and three Soricidae species) were examined from 2013 to 2023. Captured animals were visually examined for cysts and visible lesions. Two markers were used for amplification and sequencing: cox1 and 12S rDNA. Results Molecular analysis of cysts and visible lesions revealed four taeniid species: Hydatigera kamiyai, H. taeniaeformis sensu stricto (s.s.), Taenia martis and T. crassiceps. Hydatigera kamiyai was found in Apodemus flavicollis, A. agrarius, Microtus arvalis and Crocidrua leucodon, while H. taeniaeformis s.s. is registered in R. rattus. Hydatigera kamiyai cox1 sequences clustered with European populations and showed at least 25 nucleotid differences compared to Asian, African, Australian and one of our isolates of H. taeniaeformis s.s acquired from a rat, followed by large sequence distances (9.4% to 12.9%), indicating clear molecular distinction of two species. Conclusions This is one of the few mitochondrial gene-based studies performed after the description of cryptic entities within the Hydatigera taeniaeformis s.l. complex and represents a valuable contribution to understanding of genetic diversity, host suitability and geographic distribution of these tapeworm species. Also, our study provides an important basis of molecular data from this part of Europe for further studies. We emphasize the importance of additional studies of intermediate hosts, especially rats from Europe and Apodemus spp. and voles from Asia and Africa. Graphical abstract

show abstract

Cancerogenic parasites in veterinary medicine: a narrative literature review

Fonti

Parisi

Mancianti

et al. 2023

Infect Agents Cancer

View full text Add to dashboard Cite

Parasite infection is one of the many environmental factors that can significantly contribute to carcinogenesis and is already known to be associated with a variety of malignancies in both human and veterinary medicine. However, the actual number of cancerogenic parasites and their relationship to tumor development is far from being fully understood, especially in veterinary medicine. Thus, the aim of this review is to investigate parasite-related cancers in domestic and wild animals and their burden in veterinary oncology. Spontaneous neoplasia with ascertained or putative parasite etiology in domestic and wild animals will be reviewed, and the multifarious mechanisms of protozoan and metazoan cancer induction will be discussed.

show abstract

Hydatigera taeniaeformis in urban rats (Rattus rattus) in Faisalabad, Pakistan

Cited by 7 publications

References 35 publications

Comparative Mitochondrial Genomic Analysis Robustly Supported That Cat Tapeworm Hydatigera taeniaeformis (Platyhelminthes: Cestoda) Represents a Species Complex

Comparative Mitochondrial Genomic Analysis Robustly Supported That Cat Tapeworm Hydatigera taeniaeformis (Platyhelminthes: Cestoda) Represents a Species Complex

Cryptic species Hydatigera kamiyai and other taeniid metacestodes in the populations of small mammals in Serbia

Cancerogenic parasites in veterinary medicine: a narrative literature review

Contact Info

Product

Resources

About