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Lookup NU author(s): Dr Kirsten Wolff
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Aragoa, comprising 19 high-altitude North Andean species, is one of three genera in the Plantagineae (Plantaginaceae, Lamiales), along with Littorella and Plantago. Based primarily on plastid data and nuclear ITS, Aragoa is sister to a clade of Littorella + Plantago, but Plantagineae relationships have yet to be assessed using multigene datasets from the nuclear and mitochondrial genomes. Here, complete mitogenomes were assembled for two species of Aragoa (A. abietina and A. cleefii). The mitogenomes of both species have a typical suite of genes for 34 proteins, 17 tRNAs, and three rRNAs. The A. abietina mitogenome assembled into a simple circular map, with no large repeats capable of producing alternative isoforms. The A. cleefii mitogenomic map was more complex, involving two circular maps bridged by a substoichiometric linear fragment. Phylogenetics of three mitochondrial genes or the nuclear rRNA repeat placed Aragoa as sister to Littorella + Plantago, consistent with previous studies. However, P. nubicola, the sole representative of subg. Bougueria, was nested within subg. Psylliumbased on the mitochondrial and nuclear data, conflicting with plastid-based analyses. Phylogenetics of the nuclear rRNA repeat provided better resolution overall, whereas relationships from mitochondrial data were hindered by extensive substitution rate variation among lineages.
Author(s): Mower JP, Hanley L, Wolff K, Pabón-Mora N, González F
Publication type: Article
Publication status: Published
Journal: Plants
Year: 2021
Volume: 10
Issue: 12
Online publication date: 05/12/2021
Acceptance date: 02/12/2021
Date deposited: 23/12/2021
ISSN (electronic): 2223-7747
Publisher: MDPI
URL: https://doi.org/10.3390/plants10122673
DOI: 10.3390/plants10122673
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