Rajasegaran, Praveena and Koosakulnirand, Sirikamon and Tan, Kim-Kee and Khoo, Jing Jing and Suliman, Youseuf and Mansor, Mohammad Saiful and Khusaini, Mohd K. S. Ahmad and AbuBakar, Sazaly and Chaisiri, Kittipong and Morand, Serge and Ya'cob, Zubaidah and Makepeace, Benjamin L. (2024) Multi-Locus Sequence Analysis Indicates Potential Cryptic Speciation in the Chigger Mite Neoschoengastia gallinarum (Hatori, 1920) Parasitising Birds in Asia. Animals, 14 (6). p. 980. ISSN 2076-2615, DOI https://doi.org/10.3390/ani14060980.
Full text not available from this repository.Abstract
Neoschoengastia gallinarum is widely distributed in Asia, preferentially parasitising birds, and heavy infestations have clinical impacts on domestic fowl. In common with other trombiculid mites, the genetic diversity and potential variation in host preferences or pathology induced by N. gallinarum are poorly understood. This study aimed to unravel the geographical variation and population structure of N. gallinarum collected from galliform birds in Peninsular Malaysia and Thailand by inference from concatenated mitochondrial-encoded cytochrome c oxidase subunit I (COI), and nuclear-encoded internal transcribed spacer 2 (ITS2) and 18S ribosomal DNA gene sequences, including a comparison with previously published data from southeastern China. Our multi-locus sequence analysis revealed three monophyletic clades comprising (A) specimens from Peninsular Malaysia, (B) the samples from Thailand together with a minority of Chinese sequences, and (C) the majority of sequences from China. Similarly, most species delimitation approaches divided the specimens into three operational taxonomic units. Analysis of molecular variance revealed 96.41% genetic divergence between Malaysian and Thai populations, further supported by the absence of gene flow (Nm = 0.01). In conclusion, despite the two countries sharing a land border, populations of N. gallinarum from Peninsular Malaysia and Thailand appear to be genetically segregated and may represent distinct cryptic species.
| Item Type: | Article |
|---|---|
| Funders: | Royal Society, Universiti Malaya, Department of Wildlife, Tha Wang Pha District Livestock Office |
| Uncontrolled Keywords: | Galliformes; trombiculid; molecular barcoding; trombiculiasis; chickens |
| Subjects: | Q Science > QR Microbiology S Agriculture > S Agriculture (General) S Agriculture > SF Animal culture |
| Divisions: | Institute of Advanced Studies Deputy Vice Chancellor (Research & Innovation) Office > Tropical Infectious Diseases Research and Education Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 28 Oct 2024 01:36 |
| Last Modified: | 28 Oct 2024 01:36 |
| URI: | http://eprints.um.edu.my/id/eprint/45528 |
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