Diverse Trichomonas lineages in Australasian pigeons and doves support a columbid origin for the genus Trichomonas.
Columbidae: co-evolution
Ecology
Trichomonosis
Wildlife disease
Wildlife health
Journal
Molecular phylogenetics and evolution
ISSN: 1095-9513
Titre abrégé: Mol Phylogenet Evol
Pays: United States
ID NLM: 9304400
Informations de publication
Date de publication:
02 2020
02 2020
Historique:
received:
10
05
2019
revised:
17
10
2019
accepted:
06
11
2019
pubmed:
11
11
2019
medline:
11
6
2020
entrez:
11
11
2019
Statut:
ppublish
Résumé
Trichomonas is a significant protist genus, and includes T. vaginalis, the most prevalent sexually transmitted non-viral infection of humans, and T. gallinae of rock doves (Columba livia), one of the earliest known avian pathogens. New Trichomonas genotypes, including T. vaginalis-like isolates, have been discovered in American columbid hosts, suggesting geographically widespread cryptic diversity of Trichomonas in pigeons and doves. We sampled 319 birds from 22 columbid species in Australia, Papua New Guinea, New Zealand and southern Africa and uncovered 15 novel lineages of Trichomonas, more than doubling the known diversity of this parasite genus and providing evidence for frequent host-switching that eventually gave rise to T. vaginalis in humans. We show that Trichomonas has a columbid origin and likely underwent Miocene expansion out of Australasia. Our chronological topology for Trichomonas is calibrated on the evolution of a host phenotypic trait associated with ecological entrapment of the most basal extant lineage of Trichomonas in Ptilinopus fruit-doves.
Identifiants
pubmed: 31707138
pii: S1055-7903(19)30164-2
doi: 10.1016/j.ympev.2019.106674
pii:
doi:
Substances chimiques
RNA, Ribosomal, 18S
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
106674Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.