Title |
Gene Duplication and Protein Evolution in Tick-Host Interactions
|
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Published in |
Frontiers in Cellular and Infection Microbiology, September 2017
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DOI | 10.3389/fcimb.2017.00413 |
Pubmed ID | |
Authors |
Ben J. Mans, Jonathan Featherston, Minique H. de Castro, Ronel Pienaar |
Abstract |
Ticks modulate their hosts' defense responses by secreting a biopharmacopiea of hundreds to thousands of proteins and bioactive chemicals into the feeding site (tick-host interface). These molecules and their functions evolved over millions of years as ticks adapted to blood-feeding, tick lineages diverged, and host-shifts occurred. The evolution of new proteins with new functions is mainly dependent on gene duplication events. Central questions around this are the rates of gene duplication, when they occurred and how new functions evolve after gene duplication. The current review investigates these questions in the light of tick biology and considers the possibilities of ancient genome duplication, lineage specific expansion events, and the role that positive selection played in the evolution of tick protein function. It contrasts current views in tick biology regarding adaptive evolution with the more general view that neutral evolution may account for the majority of biological innovations observed in ticks. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 1 | 20% |
Switzerland | 1 | 20% |
Unknown | 3 | 60% |
Demographic breakdown
Type | Count | As % |
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Scientists | 3 | 60% |
Members of the public | 2 | 40% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 52 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 8 | 15% |
Researcher | 8 | 15% |
Other | 6 | 12% |
Student > Doctoral Student | 5 | 10% |
Student > Bachelor | 4 | 8% |
Other | 9 | 17% |
Unknown | 12 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 18 | 35% |
Biochemistry, Genetics and Molecular Biology | 10 | 19% |
Medicine and Dentistry | 2 | 4% |
Environmental Science | 1 | 2% |
Philosophy | 1 | 2% |
Other | 4 | 8% |
Unknown | 16 | 31% |