Evolution of beak and feather disease virus across three decades of conservation intervention for population recovery of the Mauritius parakeet

Fogell, D.J., Tollington, S. ORCID: 0000-0003-2450-7255, Tatayah, V., Henshaw, S., Naujeer, H., Jones, C., Raisin, C., Greenwood, A. and Groombridge, J.J., 2021. Evolution of beak and feather disease virus across three decades of conservation intervention for population recovery of the Mauritius parakeet. Diversity, 13 (11): 584. ISSN 1424-2818

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Abstract

Emerging infectious diseases (EIDs) are key contributors to the current global biodiversity crisis. Psittaciformes (parrots) are one of the most vulnerable avian taxa and psittacine beak and feather disease (PBFD) is the most common viral disease in wild parrots. PBFD is caused by the beak and feather disease virus (BFDV), which belongs to the Circoviridae family and comprises a circular, single-stranded DNA genome. BFDV is considered to have spread rapidly across the world and, in 2005, an outbreak of PBFD was documented in the recovering population of the Mauritius parakeet (Alexandrinus eques). The Mauritius parakeet was once the world’s rarest parrot and has been successfully recovered through 30 years of intensive conservation management. Molecular surveillance for the prevalence of BFDV was carried out across a 24-year sample archive spanning the period from 1993 to 2017, and DNA sequencing of positive individuals provided an opportunity to assess patterns of phylogenetic and haplotype diversity. Phylogenetic analyses show variation in the extent of viral diversification within the replicase protein (Rep). Timeseries of BFDV prevalence and number of haplotypes reveal that two subsequent waves of infection occurred in 2010/2011 and 2013/2014 following the initial outbreak in 2005. Continued disease surveillance to determine the frequency and intensity of subsequent waves of infection may benefit future translocation/reintroduction planning. The continued growth of the Mauritius parakeet population despite the presence of BFDV bodes well for its long-term persistence.

Item Type: Journal article
Publication Title: Diversity
Creators: Fogell, D.J., Tollington, S., Tatayah, V., Henshaw, S., Naujeer, H., Jones, C., Raisin, C., Greenwood, A. and Groombridge, J.J.
Publisher: MDPI AG
Date: 16 November 2021
Volume: 13
Number: 11
ISSN: 1424-2818
Identifiers:
NumberType
10.3390/d13110584DOI
1497749Other
Rights: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Divisions: Schools > School of Animal, Rural and Environmental Sciences
Record created by: Laura Ward
Date Added: 22 Nov 2021 12:06
Last Modified: 22 Nov 2021 12:06
URI: http://irep.ntu.ac.uk/id/eprint/44914

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