ArticleScientific reports2020
Signals of selection in the mitogenome provide insights into adaptation mechanisms in heterogeneous habitats in a widely distributed pelagic fish.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 20 citations in OpenAlex.
- Mitogenomic Insights into the Hampala Barb (Biomolecules · 2026Article
- Evolutionary patterns in squamate mitogenomes: Are selective regimes associated with fossoriality and limblessness?Genetics and molecular biology · 2026Article
- Uncovering the Genetic Structure of European Anchovy Populations in Central and Western Mediterranean.Ecology and evolution · 2025Article
- Mitogenomic characterization and phylogenetic placement of the Red pandora Pagellus bellottii from the Eastern Atlantic Ocean within the family Sparidae.Scientific reports · 2025Article
- Complete mitogenomes reveal high diversity and recent population dynamics in Antarctic krill.BMC genomics · 2025Article
- Genetic analyses reveal panmixia in Indian waters and population subdivision across Indian Ocean and Indo-Malay Archipelago for Decapterus russelli.Scientific reports · 2023Article
- The sequence and de novo assembly of the genome of the Indian oil sardine, Sardinella longiceps.Scientific data · 2023Article
- The NursehoundInternational journal of molecular sciences · 2022Article
- Comparative mitogenomics and phylogenetics of the family Carangidae with special emphasis on the mitogenome of the Indian Scad Decapterus russelli.Scientific reports · 2022Article
- Positive selection over the mitochondrial genome and its role in the diversification of gentoo penguins in response to adaptation in isolation.Scientific reports · 2022Article
- Article
- Genomic investigations provide insights into the mechanisms of resilience to heterogeneous habitats of the Indian Ocean in a pelagic fish.Scientific reports · 2021Article
- Article
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6 authors at 2 institutions in 1 country.
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Abstract
Oceans are vast, dynamic, and complex ecosystems characterized by fluctuations in environmental parameters like sea surface temperature (SST), salinity, oxygen availability, and productivity. Environmental variability acts as the driver of organismal evolution and speciation as organisms strive to cope with the challenges. We investigated the evolutionary consequences of heterogeneous environmental conditions on the mitogenome of a widely distributed small pelagic fish of Indian ocean, Indian oil sardine, Sardinella longiceps. Sardines were collected from different eco-regions of the Indian Ocean and selection patterns analyzed in coding and non-coding regions. Signals of diversifying selection were observed in key functional regions involved in OXPHOS indicating OXPHOS gene regulation as the critical factor to meet enhanced energetic demands. A characteristic control region with 38-40 bp tandem repeat units under strong selective pressure as evidenced by sequence conservation and low free energy values was also observed. These changes were prevalent in fishes from the South Eastern Arabian Sea (SEAS) followed by the Northern Arabian Sea (NAS) and rare in Bay of Bengal (BoB) populations. Fishes belonging to SEAS exhibited accelerated substitution rate mainly due to the selective pressures to survive in a highly variable oceanic environment characterized by seasonal hypoxia, variable SST, and food availability.
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