ArticleBMC genomics2023
Extreme plastomes in holoparasitic Balanophoraceae are not the norm.
Article in BMC genomics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Progress and prospects of parasitic plant biodiversity genomics.Plant & cell physiology · 2026Review
- Reshaping organellar translation and tRNA metabolism: the consequences of photosynthesis loss and massive horizontal gene transfer.Molecular biology and evolution · 2026Article
- A record-setting mitogenome in the holoparasitic plant Balanophora yakushimensis accompanied by exceptional loss of organellar DNA repair and recombination genes.BMC biology · 2025Article
- Diverging repeatomes in holoparasitic Hydnoraceae uncover a playground of genome evolution.The New phytologist · 2025Article
- The evolution of the plastid genomes in the holoparasitic Balanophoraceae.Proceedings. Biological sciences · 2025Article
- What we know so far and what we can expect next: A molecular investigation of plant parasitism.Genetics and molecular biology · 2024Article
- Invited Review Beyond parasitic convergence: unravelling the evolution of the organellar genomes in holoparasites.Annals of botany · 2023Review
- The Mitochondrial Genome of the Holoparasitic Plant Thonningia sanguinea Provides Insights into the Evolution of the Multichromosomal Structure.Genome biology and evolution · 2023Article
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Authors and funding
8 authors at 5 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBalanophoraceae plastomes are known for their highly condensed and re-arranged nature alongside the most extreme nucleotide compositional bias known to date, culminating in two independent reconfigurations of their genetic code. Currently, a large portion of the Balanophoraceae diversity remains unexplored, hindering, among others, evolutionary pattern recognition. Here, we explored newly sequenced plastomes of Sarcophyte sanguinea and Thonningia sanguinea. The reconstructed plastomes were analyzed using various methods of comparative genomics based on a representative taxon sampling.
resultsSarcophyte, recovered sister to the other sampled Balanophoraceae s. str., has plastomes up to 50% larger than those currently published. Its gene set contains five genes lost in any other species, including matK. Five cis-spliced introns are maintained. In contrast, the Thonningia plastome is similarly reduced to published Balanophoraceae and retains only a single cis-spliced intron. Its protein-coding genes show a more biased codon usage compared to Sarcophyte, with an accumulation of in-frame TAG stop codons. Structural plastome comparison revealed multiple, previously unknown, structural rearrangements within Balanophoraceae.
conclusionsFor the "minimal plastomes" of Thonningia, we propose a genetic code change identical to sister genus Balanophora. Sarcophyte however differs drastically from our current understanding on Balanophoraceae plastomes. With a less-extreme nucleotide composition, there is no evidence for an altered genetic code. Using comparative genomics, we identified a hotspot for plastome reconfiguration in Balanophoraceae. Based on previously published and newly identified structural reconfigurations, we propose an updated model of evolutionary plastome trajectories for Balanophoraceae, illustrating a much greater plastome diversity than previously known.
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