The mitochondrial genome sequence of Syagrus coronata (Mart.) Becc. (Arecaceae) is characterized by gene insertion within intergenic spaces

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-26 DOI:10.1007/s11295-024-01643-z

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引用次数: 0

Abstract

Syagrus coronata (Mart.) Becc. belongs to the Arecaceae family. It is a species native to Brazil of ecological, social, and economic importance. To date, there are few mitochondrial genomes in Arecaceae (Cocos nucifera and Phoenix dactylifera L.), and studies of the mitochondrial genome are essential to understand the evolution of the Arecaceae family. This study reports and compares the newly sequenced genome of S. coronata. Single-end and paired-end reads were used to obtain de novo contigs. The mitochondrial contigs were selected using C. nucifera as a reference and were merged using mate paired-end reads. The mitochondrial genome showed 642,817 bp, circular structure, containing 73 predicted functional genes, including four ribosomal RNA (rRNA) genes, 27 transfer RNA (tRNA) genes, and 42 coding protein genes. Large chloroplast genomic fragments were identified in the mitochondrial genome, and large DNA repetitive fragments were into intergenic space regions. Arecaceae mitochondrial genomes showed partial similarities in size, genome structure, and gene content. However, they exhibited numerous rearrangements. In summary, (1) we sequenced the mitochondrial genome of S. coronata and compared with other mitogenomes of Arecaceae. (2) Genomic rearrangements and gene transfer have been identified from the chloroplast genome to the mitochondrial genome. (3) The mitochondrial genome of Arecareae showed similarities in size, structure, and gene content. (4) The expansion of intergenic space size occurs due to the insertion of genes originating from the nucleus.

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Syagrus coronata (Mart.) Becc.的线粒体基因组序列具有在基因间插入基因的特征。(Arecaceae ）线粒体基因组序列的特点是基因插入到基因间隙中

摘要 Syagrus coronata (Mart.) Becc.属于天南星科。它是一种原产于巴西的物种，具有重要的生态、社会和经济价值。迄今为止，Arecaceae（椰子树和凤凰树）的线粒体基因组很少，而线粒体基因组研究对于了解 Arecaceae 科的进化至关重要。本研究报告并比较了 S. coronata 的新测序基因组。研究使用单端和成对端读数来获得新的等位基因。线粒体等位基因以 C. nucifera 为参照进行筛选，并使用配对端读数进行合并。线粒体基因组为 642,817 bp，环状结构，包含 73 个预测功能基因，包括 4 个核糖体 RNA（rRNA）基因、27 个转运 RNA（tRNA）基因和 42 个编码蛋白基因。在线粒体基因组中发现了大的叶绿体基因组片段，在基因间空间区域发现了大的 DNA 重复片段。山茶科植物的线粒体基因组在大小、基因组结构和基因含量方面表现出部分相似性。但是，它们表现出许多重排。综上所述，(1) 我们测序了 S. coronata 的线粒体基因组，并将其与 Arecaceae 的其他有丝分裂基因组进行了比较。(2）发现了从叶绿体基因组到线粒体基因组的基因组重排和基因转移。(3) Arecareae 的线粒体基因组在大小、结构和基因含量方面都有相似之处。(4）基因间空间大小的扩大是由于来自细胞核的基因的插入。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.