ArticleBMC genomics2026
Mitogenomic organization and characteristics of deep-sea pelagic ostracods from both polar regions.
Article in BMC genomics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
backgroundMitochondrial genomes are important markers that enable the study of evolutionary history, population structure, and biogeographic patterns in polar species, offering a framework to understand how polar organisms persist and adapt to extreme environments. However, they remain understudied in ostracods, an ecologically significant group of crustaceans. This study aimed to fill this gap by assembling and annotating the complete mitochondrial genomes of five pelagic ostracod species (Boroecia maxima, B. antipoda, B. borealis, Discoconchoecia elegans, and Obtusoecia obtusata) from the Arctic and Antarctic. Next-generation sequencing was applied, followed by detailed bioinformatic analyses to characterize gene content, structural features, and evolutionary patterns within these species.
resultsThe findings revealed a consistent gene arrangement across the five species, with the typical set of 37 genes, though some tRNA secondary structures showed species-specific variations. The mitogenomes displayed a high A + T content (71.9%–75.8%), had consistent Ka/Ks ratios under 1 indicating purifying selection, and included the unique presence of an intron in the nd3 gene, a potential marker for the halocyprid family lineage. Haplotype diversity ranged from 0.791 ± 0.041 to 1.000 ± 0.034, with singleton haplotypes dominating in all species.
conclusionsThese results provided new insights into the mitochondrial architecture of pelagic ostracods from polar waters. Overall, these genomic data lay the foundation for future comparative work on the population genetics and biogeography of these pelagic ostracods, particularly regarding the bipolar connectivity of this taxon.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.