Ancestral reconstruction of tick lineages

Show simple item record Mans, Ben J. (Barend Johannes) De Castro, Minique H. Pienaar, Ronel De Klerk, Daniel Gaven, Philasande Genu, Siyamcela Latif, Abdalla A. 2016-09-21T07:05:03Z 2016-06
dc.description.abstract Ancestral reconstruction in its fullest sense aims to describe the complete evolutionary history of a lineage. This depends on accurate phylogenies and an understanding of the key characters of each parental lineage. An attempt is made to delineate our current knowledge with regard to the ancestral reconstruction of the tick (Ixodida) lineage. Tick characters may be assigned to Core of Life, Lineages of Life or Edges of Life phenomena depending on how far back these characters may be assigned in the evolutionary Tree of Life. These include housekeeping genes, sub-cellular systems, heme processing (Core of Life), development, moulting, appendages, nervous and organ systems, homeostasis, respiration (Lineages of Life), specific adaptations to a blood-feeding lifestyle, including the complexities of salivary gland secretions and tick–host interactions (Edges of Life). The phylogenetic relationships of lineages, their origins and importance in ancestral reconstruction are discussed. Uncertainties with respect to systematic relationships, ancestral reconstruction and the challenges faced in comparative transcriptomics (next-generation sequencing approaches) are highlighted. While almost 150 years of information regarding tick biology have been assembled, progress in recent years indicates that we are in the infancy of understanding tick evolution. Even so, broad reconstructions can be made with relation to biological features associated with various lineages. Conservation of characters shared with sister and parent lineages are evident, but appreciable differences are present in the tick lineage indicating modification with descent, as expected for Darwinian evolutionary theory. Many of these differences can be related to the hematophagous lifestyle of ticks. en_ZA
dc.description.department Veterinary Tropical Diseases en_ZA
dc.description.embargo 2017-06-30
dc.description.librarian hb2016 en_ZA
dc.description.sponsorship This project was funded by the Joy Liebenberg Trust (21/19/JT02)allocated to BM, incentive funding for rated researchers grant from the National Research Foundation of South Africa (NRF-Mans76499), and the ARC Tick Vaccine project (30/01/V010). en_ZA
dc.description.uri en_ZA
dc.identifier.citation Mans, BJ, De Castro, MH, Pienaar, R, De Klerk, D, Gaven, P, Genu, S & Latif, AA 2016, 'Ancestral reconstruction of tick lineages', Ticks and Tick-Borne Diseases, vol. 7, no. 4, pp. 509-535 en_ZA
dc.identifier.issn 1877-959X ( print)
dc.identifier.issn 1877-9603 (online)
dc.identifier.other 10.1016/j.ttbdis.2016.02.002
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2016 Elsevier GmbH. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Ticks and Tick-borne Diseases. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Ticks and Tick-borne Diseases, vol. 7, no. 4, pp. 509-535, 2016. doi : 10.1016/j.ttbdis.2016.02.002. en_ZA
dc.subject Blood-feeding en_ZA
dc.subject Evolution en_ZA
dc.subject Genomics en_ZA
dc.subject Phylogenetics en_ZA
dc.subject Molecular systematics en_ZA
dc.subject Next-generation sequencing en_ZA
dc.title Ancestral reconstruction of tick lineages en_ZA
dc.type Postprint Article en_ZA

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