ArticleMolecular biology reports2024
Mitochondrial genome of Hancornia speciosa gomes: intergenic regions containing retrotransposons and predicted genes.
Article in Molecular biology reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 3 citations in OpenAlex.
- Assembly and Characterization of the Complete Mitochondrial Genome ofInternational journal of molecular sciences · 2026Article
- The complete mitochondrial genome ofMitochondrial DNA. Part B, Resources · 2026Article
- Assembly and comparative analysis of the complete mitochondrial and chloroplast genomes of the medicinal plant Vincetoxicum Pycnostelma.BMC genomics · 2025Article
- Giant mitogenomes in Rhynchospora are a result of nuclear gene and retrotransposon insertions in intergenic spaces.Annals of botany · 2025Article
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Authors and funding
3 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundPlant mitochondrial genomes are characterized by high homologous recombination, extensive intergenic spacers, conservation in DNA sequences, and gene content. The Hancornia genus belongs to the Apocynaceae family, with H. speciosa Gomes being the sole species in the genus. It is an siganificant commercial fruit crop; however, only a number of studies have been conducted. In this study, we present the mitochondrial genome of H. speciosa and compare it with other mitochondrial genomes within the Apocynaceae family. METHODS AND
resultsA total of 2.8 Gb of Illumina paired-end reads were used to obtain the mitogenome, resulting in 22 contigs that were merged using 6.1 Gb of Illumina mate-pair reads to obtain a circular chromosome. The mitochondrial genome of H. speciosa is circular, containing 63 predicted functional genes, spanning a length of 741,811 bp, with a CG content of 44%. Within the mitogenome, 50 chloroplast DNA sequences, equivalent to 1.72% of the genome, were detected. However, intergenic spaces accounted for 703,139 bp (94.79% of the genome), and 287 genes were predicted, totaling 173,721 bp.
conclusionThis suggests the incorporation of nuclear DNA into the mitogenome of H. speciosa and self duplication. Comparative analysis among the mitogenomes in the Apocynaceae family revealed a diversity in the structure mediated by recombination, with similar gene content and large intergenic spaces.
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