Coevolutionary history of ERVs and Perissodactyls inferred from the retroviral fossil record

Zhu, Henan (2018) Coevolutionary history of ERVs and Perissodactyls inferred from the retroviral fossil record. PhD thesis, University of Glasgow.

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Printed Thesis Information: https://eleanor.lib.gla.ac.uk/record=b3320671

Abstract

The horse (Equus caballus) is an economically and scientifically important species of mammal. The horse genome (and that of other mammals) contains thousands of sequences derived from retroviruses, called endogenous retroviruses (ERVs). These sequences are highly informative about the long-term interactions of retroviruses and hosts. They are also interesting because they have influenced the evolution of mammalian genomes in various ways.

Horses belong to the family Equidae in the order Perissodactyla - comprising 16 extant species of strict herbivores adapted for running and dietary specialisation. This PhD thesis describes my work developing and applying a novel bioinformatics approach for characterising ERVs. I used this approach to characterise ERVs in genomes of Hippomorpha species in relation to those found in a representative of the Ceratomorpha - the white rhinoceros (Ceratotherium simum).

Through comparative analysis of these three genomes, I derive a calibrated timeline describing the process through which ERV diversity has been generated in the equine germline. My project has provided an overview of retrotranspositional activity in perissodactyl ERV lineages and identified individual ERV loci that show evidence of involvement in physiological processes and/or pathological conditions. The dataset generated in this project will be of great utility for future studies aiming to investigate the potential functional roles of equine ERVs and their impact on equine evolution.

Item Type: Thesis (PhD)
Qualification Level: Doctoral
Keywords: ERVs, bioinformatics, perissodactyl, evolution.
Subjects: Q Science > QR Microbiology > QR355 Virology
Colleges/Schools: College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation > Centre for Virus Research
Supervisor's Name: Murcia, Dr. Pablo and Gifford, Dr. Robert
Date of Award: 2018
Depositing User: Mr Henan Zhu
Unique ID: glathesis:2018-30669
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 23 Jul 2018 14:23
Last Modified: 11 Sep 2018 07:16
URI: http://theses.gla.ac.uk/id/eprint/30669

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