ArticleBMC plant biology2022
De novo assembly of the complete mitochondrial genome of sweet potato (Ipomoea batatas [L.] Lam) revealed the existence of homologous conformations generated by the repeat-mediated recombination.
Article in BMC plant biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
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57 citing papers in PubMed, 90 citations in OpenAlex.
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- Complete mitochondrial genome assembly and comparative analysis of Fagopyrum dibotrys (Golden Buckwheat).BMC plant biology · 2025Article
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- Assembly and analysis of the complete mitochondrial genome of an endemic Camellia species of China, Camellia tachangensis.BMC genomics · 2025Article
- Complete mitogenome characteristics and phylogenetic analysis of traditional Chinese medicinal plant Tinospora sagittata (Oliv.) Gagnep. from the Menispermaceae family.BMC plant biology · 2025Article
- De novo assembly of the complete mitochondrial genomes of two Camellia-oil tree species reveals their multibranch conformation and evolutionary relationships.Scientific reports · 2025Article
- Assembly and comparative analysis of the complete mitochondrial genome of red raspberry (Rubus idaeus L.) revealing repeat-mediated recombination and gene transfer.BMC plant biology · 2025Article
- Comparative analysis of mitochondrial genomes ofFrontiers in plant science · 2025Article
- Complete plastome and mitogenome assembly of endangered treeFrontiers in plant science · 2025Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sweet potato (Ipomoea batatas [L.] Lam) is an important food crop, an excellent fodder crop, and a new type of industrial raw material crop. The lack of genomic resources could affect the process of industrialization of sweet potato. Few detailed reports have been completed on the mitochondrial genome of sweet potato. In this research, we sequenced and assembled the mitochondrial genome of sweet potato and investigated its substructure. The mitochondrial genome of sweet potato is 270,304 bp with 23 unique core genes and 12 variable genes. We detected 279 pairs of repeat sequences and found that three pairs of direct repeats could mediate the homologous recombination into four independent circular molecules. We identified 70 SSRs in the whole mitochondrial genome of sweet potato. The longest dispersed repeat in mitochondrial genome was a palindromic repeat with a length of 915 bp. The homologous fragments between the chloroplast and mitochondrial genome account for 7.35% of the mitochondrial genome. We also predicted 597 RNA editing sites and found that the rps3 gene was edited 54 times, which occurred most frequently. This study further demonstrates the existence of multiple conformations in sweet potato mitochondrial genomes and provides a theoretical basis for the evolution of higher plants and cytoplasmic male sterility breeding.
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