Plants acquired mitochondrial linear plasmids horizontally from fungi likely during the conquest of land.

IF 4.7 2区 生物学 Q1 GENETICS & HEREDITY Mobile DNA Pub Date : 2023-10-17 DOI:10.1186/s13100-023-00304-7
Yutong Wei, Zhen Gong, Guan-Zhu Han
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Abstract

Mitochondrial linear plasmids have been sporadically reported in fungi and plants. Yet, much remains obscure about the diversity, distribution, and evolution of mitochondrial linear plasmids. Here, through phylogenomic analyses across 7,163 cellular organisms (including 991 plants), we find that mitochondrial linear plasmids are widely present in land plants and fungi. Phylogenetic analyses indicate that plants are likely to have acquired mitochondrial linear plasmids horizontally from fungi before or during the conquest of terrestrial environments by plants. Gene content analyses show that mitochondrial linear plasmids harbor a highly dynamic and promiscuous repertoire of genes. Our study refines the understanding of the origin and evolution of mitochondrial linear plasmids.

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植物可能在征服土地的过程中从真菌那里水平获得线粒体线性质粒。
线粒体线性质粒在真菌和植物中也有零星报道。然而,线粒体线性质粒的多样性、分布和进化仍有很多未知之处。在这里,通过对7163种细胞生物(包括991种植物)的系统发育分析,我们发现线粒体线性质粒广泛存在于陆地植物和真菌中。系统发育分析表明,植物很可能在植物征服陆地环境之前或期间从真菌水平获得线粒体线性质粒。基因含量分析表明,线粒体线性质粒含有高度动态和混杂的基因库。我们的研究完善了对线粒体线性质粒起源和进化的理解。
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来源期刊
Mobile DNA
Mobile DNA GENETICS & HEREDITY-
CiteScore
8.20
自引率
6.10%
发文量
26
审稿时长
11 weeks
期刊介绍: Mobile DNA is an online, peer-reviewed, open access journal that publishes articles providing novel insights into DNA rearrangements in all organisms, ranging from transposition and other types of recombination mechanisms to patterns and processes of mobile element and host genome evolution. In addition, the journal will consider articles on the utility of mobile genetic elements in biotechnological methods and protocols.
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