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Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii

Mitochondria, inherited maternally, are energy metabolism organelles that generate most of the chemical energy needed to power cellular various biochemical reactions. Deciphering mitochondrial genome (mitogenome) is important for elucidating vital activities of species. The complete chloroplast (cp)...

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Autores principales: Bi, Changwei, Qu, Yanshu, Hou, Jing, Wu, Kai, Ye, Ning, Yin, Tongming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9240471/
https://www.ncbi.nlm.nih.gov/pubmed/35783945
http://dx.doi.org/10.3389/fpls.2022.914635
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author Bi, Changwei
Qu, Yanshu
Hou, Jing
Wu, Kai
Ye, Ning
Yin, Tongming
author_facet Bi, Changwei
Qu, Yanshu
Hou, Jing
Wu, Kai
Ye, Ning
Yin, Tongming
author_sort Bi, Changwei
collection PubMed
description Mitochondria, inherited maternally, are energy metabolism organelles that generate most of the chemical energy needed to power cellular various biochemical reactions. Deciphering mitochondrial genome (mitogenome) is important for elucidating vital activities of species. The complete chloroplast (cp) and nuclear genome sequences of Populus simonii (P. simonii) have been reported, but there has been little progress in its mitogenome. Here, we assemble the complete P. simonii mitogenome into three circular-mapping molecules (lengths 312.5, 283, and 186 kb) with the total length of 781.5 kb. All three molecules of the P. simonii mitogenome had protein-coding capability. Whole-genome alignment analyses of four Populus species revealed the fission of poplar mitogenome in P. simonii. Comparative repeat analyses of four Populus mitogenomes showed that there were no repeats longer than 350 bp in Populus mitogenomes, contributing to the stability of genome sizes and gene contents in the genus Populus. As the first reported multi-circular mitogenome in Populus, this study of P. simonii mitogenome are imperative for better elucidating their biological functions, replication and recombination mechanisms, and their unique evolutionary trajectories in Populus.
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spelling pubmed-92404712022-06-30 Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii Bi, Changwei Qu, Yanshu Hou, Jing Wu, Kai Ye, Ning Yin, Tongming Front Plant Sci Plant Science Mitochondria, inherited maternally, are energy metabolism organelles that generate most of the chemical energy needed to power cellular various biochemical reactions. Deciphering mitochondrial genome (mitogenome) is important for elucidating vital activities of species. The complete chloroplast (cp) and nuclear genome sequences of Populus simonii (P. simonii) have been reported, but there has been little progress in its mitogenome. Here, we assemble the complete P. simonii mitogenome into three circular-mapping molecules (lengths 312.5, 283, and 186 kb) with the total length of 781.5 kb. All three molecules of the P. simonii mitogenome had protein-coding capability. Whole-genome alignment analyses of four Populus species revealed the fission of poplar mitogenome in P. simonii. Comparative repeat analyses of four Populus mitogenomes showed that there were no repeats longer than 350 bp in Populus mitogenomes, contributing to the stability of genome sizes and gene contents in the genus Populus. As the first reported multi-circular mitogenome in Populus, this study of P. simonii mitogenome are imperative for better elucidating their biological functions, replication and recombination mechanisms, and their unique evolutionary trajectories in Populus. Frontiers Media S.A. 2022-06-15 /pmc/articles/PMC9240471/ /pubmed/35783945 http://dx.doi.org/10.3389/fpls.2022.914635 Text en Copyright © 2022 Bi, Qu, Hou, Wu, Ye and Yin. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Bi, Changwei
Qu, Yanshu
Hou, Jing
Wu, Kai
Ye, Ning
Yin, Tongming
Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii
title Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii
title_full Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii
title_fullStr Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii
title_full_unstemmed Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii
title_short Deciphering the Multi-Chromosomal Mitochondrial Genome of Populus simonii
title_sort deciphering the multi-chromosomal mitochondrial genome of populus simonii
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9240471/
https://www.ncbi.nlm.nih.gov/pubmed/35783945
http://dx.doi.org/10.3389/fpls.2022.914635
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