Evolutionary and biogeographic history of the black fly Simulium wayani (Diptera: Simuliidae) on the island of Timor

Adler, Peter H. and Takaoka, Hiroyuki and Sofian-Azirun, Mohd and Chen, Chee Dhang and Suana, I. Wayan (2019) Evolutionary and biogeographic history of the black fly Simulium wayani (Diptera: Simuliidae) on the island of Timor. Acta Tropica, 193. pp. 1-6. ISSN 0001-706X

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Official URL: https://doi.org/10.1016/j.actatropica.2019.02.017

Abstract

A recently described species of black fly, Simulium wayani Takaoka and Chen, from the island of Timor was chromosomally mapped to provide insights into its evolutionary and biogeographic history. The morphologically based species status of S. wayani is supported by a suite of fixed chromosomal rearrangements and unique sex chromosomes derived primarily from a large pool of polymorphisms in the S. ornatipes complex in Australia. The banding patterns of its polytene chromosomes indicate that S. wayani is closely related to a pair of homosequential cryptic species (S. norfolkense Dumbleton and S. ornatipes cytoform A2) in the S. ornatipes Skuse complex on mainland Australia; all three species uniquely share the same amplified band in their chromosomal complement. The low level of polymorphism and heterozygosity in S. wayani, relative to Australian populations of the S. ornatipes complex, suggests few colonization events from the larger land mass. © 2019 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: Aquatic insects; Biogeography; Biodiversity; Islands; Polytene chromosomes; Sex chromosomes; Streams
Subjects: Q Science > QH Natural history
Divisions: Faculty of Science > Institute of Biological Sciences
Deputy Vice Chancellor (Research & Innovation) Office > Tropical Infectious Diseases Research and Education Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 18 May 2020 03:50
Last Modified: 18 May 2020 03:50
URI: http://eprints.um.edu.my/id/eprint/24306

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