Description of the female, nymph and larva and mitochondrial genome, and redescription of the male, of Ixodes barkeri Barker, 2019 (Acari: Ixodidae) from the short-beaked echidna, Tachyglossus aculeatus, with a consideration of the most suitable subgenus for this tick

Dayana Barker; Samuel Kelava; Renfu Shao; Owen D Seeman; Malcolm K Jones; Ryo Nakao; Stephen Charles Barker

doi:10.21203/rs.3.rs-1097590/v1

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Description of the female, nymph and larva and mitochondrial genome, and redescription of the male, of Ixodes barkeri Barker, 2019 (Acari: Ixodidae) from the short-beaked echidna, Tachyglossus aculeatus, with a consideration of the most suitable subgenus for this tick

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Description of the female, nymph and larva and mitochondrial genome, and redescription of the male, of Ixodes barkeri Barker, 2019 (Acari: Ixodidae) from the short-beaked echidna, Tachyglossus aculeatus, with a consideration of the most suitable subgenus for this tick

Dayana Barker, Samuel Kelava, Renfu Shao, Owen D Seeman, Malcolm K Jones, Ryo Nakao and Stephen Charles Barker

Research Square, Vol.23 November 2021

Research Square Company

2021

DOI: https://doi.org/10.21203/rs.3.rs-1097590/v1

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Description of the female, nymph, and larva and mt genome, and redesciption of the male, of I barkeri Barker, from the short-beaked echidna, T aculeatus, with a consideration of the most suitable subgenus3.47 MBDownload View

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Abstract

integrative taxonomy

Wet Tropics

Background: Ixodes barkeri, a tick with a distinctive ventrolateral horn-like projection on palpal segment 1, was described in 2019 from two male ticks from the Wet Tropics of Far North Queensland, Australia. However, females lie at the core of the taxonomy and subgenus classification of Ixodes, hence we sought specimens of female ticks, successfully recovering females, plus nymphs and larvae. Mitochondrial genomes are also desirable additions to the descriptions of species of ticks particularly with regard to subgenus systematics. So, we sequenced the mt genomes of I. barkeri Barker, 2019 and the possible relatives of I. barkeri that were available to us (I. australiensis Neumann, 1904, I. fecialis Warburton & Nuttall, 1909, and I. woyliei Ash et al. 2017) with a view to discovering which if any of the subgenera of Ixodes would be most suitable for I. barkeri Barker, 2019. Results: The female, nymph, larva, and mitochondrial genome of Ixodes barkeri Barker, 2019 are described for the first time and the male of I. barkeri is redescribed in greater detail than previously. So far, I. barkeri is known only from a monotreme, the short-beaked echidna, Tachyglossus aculeatus (Shaw, 1792), from the highland-rainforests of Far North Queensland, Australia. Conclusions: Our phylogeny from entire mitochondrial genomes indicated that I. barkeri, and indeed I. woyliei Ash et al. 2017, another tick that was described recently, are best placed in the subgenus Endopalpiger Schulze, 1935.

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Title: Description of the female, nymph and larva and mitochondrial genome, and redescription of the male, of Ixodes barkeri Barker, 2019 (Acari: Ixodidae) from the short-beaked echidna, Tachyglossus aculeatus, with a consideration of the most suitable subgenus for this tick
Authors: Dayana Barker (Author) - The University of Queensland
Samuel Kelava (Author) - The University of Queensland
Renfu Shao (Author) - University of the Sunshine Coast, Queensland, GeneCology Research Centre - Legacy
Owen D Seeman (Author) - Queensland Museum
Malcolm K Jones (Author) - The University of Queensland
Ryo Nakao (Author) - Hokkaido University
Stephen Charles Barker (Author) - The University of Queensland
Publication details: Research Square, Vol.23 November 2021
Publisher: Research Square Company
Date published: 2021
DOI: 10.21203/rs.3.rs-1097590/v1
ISSN: 2693-5015
Copyright note: This work is licensed under a CC BY 4.0 License
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99605105802621
Output Type: Preprint

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