Cevallos Miguel A, Guerrero Gabriela, Ríos Selma, Arroyo Analilia, Villalobos Miguel Angel, Porta Helena
Centro de Ciencias Genómicas, Programa de Genómica Evolutiva, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, C.P., México.
Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional. Tepetitla de Lardizábal, Tlaxcala, C.P., México.
Mitochondrial DNA B Resour. 2020 Jun 5;5(3):2339-2341. doi: 10.1080/23802359.2020.1774436.
Bryophytes are the earliest plant group on Earth. They are a fundamental component of many ecosystems around the World. Some of their main roles are related to soil development, water retention, and biogeochemical cycling. Bryophytes include liverworts, hornworts, and mosses. The sequencing of chloroplast and mitochondria genomes has been useful to elucidate the taxonomy of this heterogeneous plant group. To date, despite their ecological importance only 41 mosses mitogenomes have been deposited in the GenBank. Here, the complete mitochondria genome sequence of , a moss of the Pottiaceae family isolated in Tlaxcala, Mexico, is reported. The mitochondrial genome size of comprises 105,495 bp and contains the groups of genes described for other bryophytes mitogenomes. Our phylogenetic analysis shows that during the evolution of the mosses' mitogenome, , , , and genes were lost independently in several lineages. The complete mitogenome sequence reported here would be a useful tool for our comprehension of the evolutionary and population genetics of this group of plants.
苔藓植物是地球上最早的植物类群。它们是世界上许多生态系统的基本组成部分。它们的一些主要作用与土壤发育、保水和生物地球化学循环有关。苔藓植物包括叶苔、角苔和藓类。叶绿体和线粒体基因组的测序有助于阐明这个异质植物类群的分类学。迄今为止，尽管它们具有生态重要性，但在GenBank中仅存入了41个藓类线粒体基因组。在此，报道了在墨西哥特拉斯卡拉分离的一种丛藓科藓类植物的完整线粒体基因组序列。该线粒体基因组大小为105,495 bp，包含其他苔藓植物线粒体基因组中描述的基因群。我们的系统发育分析表明，在藓类线粒体基因组的进化过程中，、、和基因在几个谱系中独立丢失。这里报道的完整线粒体基因组序列将是我们理解这类植物的进化和群体遗传学的有用工具。
