ArticlePloS one2019
Extensive chloroplast genome rearrangement amongst three closely related Halamphora spp. (Bacillariophyceae), and evidence for rapid evolution as compared to land plants.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 27 citations in OpenAlex.
- Article
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- Morphological and molecular characterization ofPhytoKeys · 2024Article
- Phylogeny and Evolution ofInternational journal of molecular sciences · 2023Article
- Evolutionary dynamics of plastomes in coscinodiscophycean diatoms revealed by comparative genomics.Frontiers in microbiology · 2023Article
- Comparative Analysis of Bacillariophyceae Chloroplast Genomes Uncovers Extensive Genome Rearrangements Associated with Speciation.International journal of environmental research and public health · 2022Article
- Evolutionary Dynamics and Lateral Gene Transfer in Raphidophyceae Plastid Genomes.Frontiers in plant science · 2022Article
- Mitochondrial and Plastid Genomes of the Monoraphid DiatomInternational journal of molecular sciences · 2021Article
- Chloroplast Genomes for FiveFrontiers in plant science · 2021Article
- Genome skimming and exploration of DNA barcodes for Taiwan endemic cypresses.Scientific reports · 2020Article
- Complete chloroplast genome of the tiny marine diatomMitochondrial DNA. Part B, Resources · 2019Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Diatoms are the most diverse lineage of algae, but the diversity of their chloroplast genomes, particularly within a genus, has not been well documented. Herein, we present three chloroplast genomes from the genus Halamphora (H. americana, H. calidilacuna, and H. coffeaeformis), the first pennate diatom genus to be represented by more than one species. Halamphora chloroplast genomes ranged in size from ~120 to 150 kb, representing a 24% size difference within the genus. Differences in genome size were due to changes in the length of the inverted repeat region, length of intergenic regions, and the variable presence of ORFs that appear to encode as-yet-undescribed proteins. All three species shared a set of 161 core features but differed in the presence of two genes, serC and tyrC of foreign and unknown origin, respectively. A comparison of these data to three previously published chloroplast genomes in the non-pennate genus Cyclotella (Thalassiosirales) revealed that Halamphora has undergone extensive chloroplast genome rearrangement compared to other genera, as well as containing variation within the genus. Finally, a comparison of Halamphora chloroplast genomes to those of land plants indicates diatom chloroplast genomes within this genus may be evolving at least ~4-7 times faster than those of land plants. Studies such as these provide deeper insights into diatom chloroplast evolution and important genetic resources for future analyses.
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