Next Article in Journal
Bird Functional Traits Respond to Forest Structure in Riparian Areas Undergoing Active Restoration
Next Article in Special Issue
First Record of Juncaceicola as Endophytic Fungi Associated with Deschampsia antarctica Desv.
Previous Article in Journal
The Molecular Phylogeny of the New Zealand Endemic Genus Hadramphus and the Revival of the Genus Karocolens
Previous Article in Special Issue
Long-Term Changes in the Composition, Ecology, and Structure of Pinus mugo Scrubs in the Apennines (Italy)
Article Menu
Issue 3 (September) cover image

Export Article

Open AccessArticle
Diversity 2018, 10(3), 89; https://doi.org/10.3390/d10030089

Characterization and Phylogenetic Analysis of Chloroplast and Mitochondria Genomes from the Antarctic Polytrichaceae Species Polytrichum juniperinum and Polytrichum strictum

1
Núcleo de Estudos da Vegetação Antártica, Universidade Federal do Pampa, São Gabriel 97307-020, Brazil
2
Centro Interdisciplinar de Pesquisas em Biotecnologia, Universidade Federal do Pampa, São Gabriel 97307-020, Brazil
3
National Institute of Antarctic Science and Technology for Environmental Research, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
*
Author to whom correspondence should be addressed.
Received: 12 April 2018 / Revised: 15 June 2018 / Accepted: 13 July 2018 / Published: 14 August 2018
(This article belongs to the Special Issue Climate Change Impacts on Alpine and Polar Plants)
Full-Text   |   PDF [2409 KB, uploaded 14 August 2018]   |  

Abstract

In this study, the organelle genomes of Polytrichum juniperinum Hedw. and Polytrichum strictum Menzies ex Brid. (Polytrichaceae, Bryophyta) from Antarctica were sequenced and compared with the plastomes of the model moss species Physcomitrella patens Brid. The sizes of the cpDNA in P. juniperinum and P. strictum were estimated to be 55,168 and 20,183 bp, respectively; the sizes of the mtDNA were 88,021 and 58,896 bp, respectively. The genomes are very similar to each other, with the possible loss of petN in the cpDNA, which also showed some gene inversions when compared with the cpDNAs of P. patens Brid. In the mtDNA, it is possible that rps10 was lost. In contrast, Antarctic Polytrichaceae species have nad7 and orf187, without the occurrence of rearrangement events. Phylogenomic analyses of the plastid and mitochondria revealed that the majority-rule tree suggests some differences in the plastids ancestry, however, P. juniperinum and P. strictum were grouped in the same clade in chloroplast, but in mitochondria P. strictum was grouped with Atrichum angustatum (Brid.) Bruch & Schimp. This study helped us understand the evolution of plastomes and chondriosomes in the family Polytrichaceae, and suggest a hybridization event with relation to the mitochondrial data. View Full-Text
Keywords: phylogenomics; mosses; bipolar species; cryptic species phylogenomics; mosses; bipolar species; cryptic species
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

de Freitas, K.E.J.; Metz, G.F.; Cañon, E.R.P.; Roesch, L.F.W.; Pereira, A.B.; Victoria, F.C. Characterization and Phylogenetic Analysis of Chloroplast and Mitochondria Genomes from the Antarctic Polytrichaceae Species Polytrichum juniperinum and Polytrichum strictum. Diversity 2018, 10, 89.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Diversity EISSN 1424-2818 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top