A novel mitogenome for Euterpe precatoria (Arecaceae)

Abstract

Mitochondrial genomes of angiosperms are unusual due to their large size, low gene content, and high structural variation. In the palm family (Arecaceae), mitochondrial architecture is highly dynamic, characterized by expansive sizes, fragmentation, and extensive recombination activity. This biological complexity presents a significant bioinformatic challenge, especially since only three complete palm mitochondrial genomes are publicly available to date. Here, we present the complete mitochondrial genome sequence for the Amazonian palm Euterpe precatoria, assembled de novo using PacBio HiFi long-read sequencing data. The assembly required extensive manual curation and graph tracing to resolve a complex recombination topology. The final resolved sequence spans 1,268,308 base pairs and is supported by a mean read coverage depth estimated at 746X. Annotation revealed a high degree of structural complexity, including 177 total gene features corresponding to 76 unique genes. This gene set includes 41 unique protein-coding genes (56 features), 32 unique tRNA genes (118 features), and three unique rRNA genes, reflecting the characteristic gene duplication and fragmentation documented in Arecaceae. The complete mitochondrial genome sequence is publicly available and provides a high-quality resource for understanding the mechanisms of plant mitochondrial genome expansion and structural evolution.

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BibTeX RIS

BibTeX

@misc{soler2026novel,
  title = {{A novel mitogenome for Euterpe precatoria (Arecaceae)}},
  author = {L. Soler and F. Alves Noguiera de Almeida and A. Gibau de Lima and M.-B. Mosbech and C. T.-R. Tellgren-Roth and C. D. Bacon},
  howpublished = {bioRxiv},
  year = {2026},
  month = sep,
  doi = {10.64898/2026.09.28.754896},
  url = {https://www.biorxiv.org/content/10.64898/2026.09.28.754896v1},
  note = {CC BY},
}

RIS

TY  - UNPB
TI  - A novel mitogenome for Euterpe precatoria (Arecaceae)
AU  - L. Soler
AU  - F. Alves Noguiera de Almeida
AU  - A. Gibau de Lima
AU  - M.-B. Mosbech
AU  - C. T.-R. Tellgren-Roth
AU  - C. D. Bacon
PY  - 2026
DA  - 2026/09/28
PB  - bioRxiv
DO  - 10.64898/2026.09.28.754896
UR  - https://www.biorxiv.org/content/10.64898/2026.09.28.754896v1
AB  - Mitochondrial genomes of angiosperms are unusual due to their large size, low gene content, and high structural variation. In the palm family (Arecaceae), mitochondrial architecture is highly dynamic, characterized by expansive sizes, fragmentation, and extensive recombination activity. This biological complexity presents a significant bioinformatic challenge, especially since only three complete palm mitochondrial genomes are publicly available to date. Here, we present the complete mitochondrial genome sequence for the Amazonian palm Euterpe precatoria, assembled de novo using PacBio HiFi long-read sequencing data. The assembly required extensive manual curation and graph tracing to resolve a complex recombination topology. The final resolved sequence spans 1,268,308 base pairs and is supported by a mean read coverage depth estimated at 746X. Annotation revealed a high degree of structural complexity, including 177 total gene features corresponding to 76 unique genes. This gene set includes 41 unique protein-coding genes (56 features), 32 unique tRNA genes (118 features), and three unique rRNA genes, reflecting the characteristic gene duplication and fragmentation documented in Arecaceae. The complete mitochondrial genome sequence is publicly available and provides a high-quality resource for understanding the mechanisms of plant mitochondrial genome expansion and structural evolution.
ER  -

Abstract

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