Isolates from ancient permafrost help to elucidate species boundaries in Acanthamoeba castellanii complex (Amoebozoa: Discosea).
Acanthamoeba
Morphometrics
Permafrost
Species concept
Species delimitation
rDNA
Journal
European journal of protistology
ISSN: 1618-0429
Titre abrégé: Eur J Protistol
Pays: Germany
ID NLM: 8917383
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
received:
11
09
2019
revised:
03
01
2020
accepted:
08
01
2020
pubmed:
27
1
2020
medline:
3
6
2020
entrez:
27
1
2020
Statut:
ppublish
Résumé
Acanthamoeba castellanii species complex (genotype T4) comprises of more than ten species with unclear synonymy. Its molecular phylogeny has several conflicts with published morphological data. In this paper, we analyze morphometric traits and temperature preferences in six new strains belonging to A. castellanii complex isolated from Arctic permafrost in the framework of molecular phylogeny. This integrative approach allows us to cross-link genotypic and phenotypic variability and identify species-level boundaries inside the complex. We also analyze previously known and newly found discrepancies between the nuclear and mitochondrial gene-based phylogenies. We hypothesize that one reason for these discrepancies may be the intragenomic polymorphism of ribosomal RNA genes.
Identifiants
pubmed: 31982806
pii: S0932-4739(20)30001-8
doi: 10.1016/j.ejop.2020.125671
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
125671Informations de copyright
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