Raccoons foster the spread of freshwater and terrestrial microorganisms—Mammals as a source of microbial eDNA

et al. 2020

Preprint

Background: Piroplasms are vector-borne intracellular haemoprotozoan parasites that infect wildlife and livestock. Wildlife species are reservoir hosts to a diversity of piroplasms and play an important role in the circulation, maintenance and evolution of these parasites. The potential for likely spillover of both pathogenic and non-pathogenic piroplasms from wildlife to livestock is underlined when common ecological niche is shared in the presence of a competent vector. Method: To investigate piroplasm cryptic variation and diversity in parasite community in wildlife and cattle population of the greater Kafue ecosystem, we utilized PCR to amplify the 18S rRNA V4 hyper-variable region and meta-barcoding strategy using illumina MiSeq sequencing platform and amplicon sequence variant (ASV) based bioinformatics pipeline to generate high resolution data which discriminate sequences down to a single nucleotide difference. Results: A parasite community of 45 ASVs and 23 piroplasm species consisting of 4 genera of Babesia, Theileria, Hepatozoon and Colpodella was identified in wildlife and cattle population from the study area. Conclusion: The findings of this study demonstrates the usefulness of illumina MiSeq sequencing to describe the area specific parasite composition, which is critical in the application and establishment of disease control strategy options of ideal diagnostic tools to employ and area specific vaccine development.

Section: Discussionsupporting

confidence: 74%

Investigation of the Piroplasm Diversity Circulating in Wildlife and Cattle of the Greater Kafue Ecosystem, Zambia

et al. 2020

Preprint

“…HEP). The sequence detected from our cattle sample showed perfect match (100% identity) to GenBank MN103986 (Colpodellidae clone PL31), reported in raccoon dog in Poland (43). Thus, the detection ofColpodella sp.…”

Section: Discussionsupporting

confidence: 75%

Investigation of the piroplasm diversity circulating in wildlife and cattle of the greater Kafue ecosystem, Zambia

et al. 2020

Preprint

Background: Piroplasms are vector-borne intracellular hemoprotozoan parasites that infect wildlife and livestock. Wildlife species are reservoir hosts to a diversity of piroplasms and play an important role in the circulation, maintenance and evolution of these parasites. The potential for likely spillover of both pathogenic and non-pathogenic piroplasm parasites from wildlife to livestock is underlined when common ecological niche is shared in the presence of a competent vector. Method: To investigate piroplasm diversity in wildlife and cattle population of the greater Kafue ecosystem, we utilized PCR to amplify the 18S rRNA V4 hyper-variable region and meta-barcoding strategy using illumina MiSeq sequencing platform and amplicon sequence variant (ASV) based bioinformatics pipeline to generate high resolution data which discriminate sequences down to a single nucleotide difference. Results: A parasite community of 45 ASVs corresponding to 23 species consisting of 4 genera of Babesia, Theileria, Hepatozoon and Colpodella, were identified in wildlife and cattle population from the study area. Theileria species were detected in buffalo, impala, hartebeest, sable antelope, sitatunga, wild dog and cattle. In contrast, Babesia species were only observed in cattle and wild dog. Our results demonstrate possible spillover of these hemoprotozoan parasites from wildlife, especially buffalo, to cattle population in the wildlife-livestock interface.Conclusion: We demonstrated that the deep amplicon sequencing of the 18S rRNA V4 hyper-variable region for wildlife was informative. Our results illustrated the diversity of piroplasma and the specificity of their hosts. They led us to speculate possible ecological cycle including transmission from wildlife to domestic animals in the greater Kafue ecosystem. Thus, this approach may contribute to the establishment of appropriate disease control strategies in wildlife-livestock interface areas.

Section: Discussionsupporting

confidence: 74%

Investigation of the piroplasm diversity circulating in wildlife and cattle of the greater Kafue ecosystem, Zambia

et al. 2020

Preprint

Background Piroplasms are vector-borne intracellular hemoprotozoan parasites that infect wildlife and livestock. Wildlife species are reservoir hosts to a diversity of piroplasms and play an important role in the circulation, maintenance and evolution of these parasites. The potential for likely spillover of both pathogenic and non-pathogenic piroplasm parasites from wildlife to livestock is underlined when common ecological niche is shared in the presence of a competent vector. Method To investigate piroplasm diversity in parasite community in wildlife and cattle population of the greater Kafue ecosystem , we utilized PCR to amplify the 18S rRNA V4 hyper-variable region and meta-barcoding strategy using illumina MiSeq sequencing platform and amplicon sequence variant (ASV) based bioinformatics pipeline to generate high resolution data which discriminate sequences down to a single nucleotide difference. Results A parasite community of 45 ASVs corresponding to 23 species consisting of 4 genera of Babesia , Theileria , Hepatozoon and Colpodella, were identified in wildlife and cattle population from the study area. Theileria species were observed in buffalo, impala, hartebeest, sable antelope, sitatunga, wild dog and cattle. In contrast, Babesia species were only observed in cattle and wild dog. Our results demonstrate possible spillover of these hemoprotozoan parasites from wildlife, especially buffalo, to cattle population in the wildlife-livestock interface. Conclusion We demonstrated that the deep amplicon sequencing of the 18S rRNA V4 hyper-variable region for wildlife was informative. Our results illustrated the diversity of piroplasma and the specificity of their hosts. They led us to speculate possible ecological cycle including transmission from wildlife to domestic animals in the greater Kafue ecosystem. Thus, this approach may contribute to the establishment of appropriate disease control strategies in wildlife-livestock interface areas.