AI Article Synopsis

  • The roundjaw bonefish, found widely in the Indo-Pacific, is at risk of extinction, prompting the assembly of its genome from Hawai'i for better conservation efforts.
  • The assembled genome is significant, featuring a size of 1.05 gigabases and annotated with over 28,000 protein-coding genes, providing valuable insights for species management.
  • Population genetic analysis across six atolls revealed limited gene flow, particularly between Seychelles and Mauritius, potentially influenced by the South Equatorial Current, which helps to understand the genetic connectivity among bonefish populations.

Article Abstract

The roundjaw bonefish, , is the most widespread albulid in the Indo-Pacific and is vulnerable to extinction. We assembled the genome of a roundjaw bonefish from Hawai'i, USA, which will be instrumental for effective transboundary management and conservation when paired with population genomics datasets. The 1.05 gigabase pair (Gbp) contig-level assembly had a 4.75 megabase pair (Mbp) NG50 and a maximum contig length of 28.2 Mbp. Scaffolding yielded an LG50 of 20 and an NG50 of 14.49 Mbp, with the longest scaffold reaching 42.29 Mbp. The genome comprised 6.5% repetitive elements and was annotated with 28.3 K protein-coding genes. We then evaluated population genetic connectivity between six atolls in the Western Indian Ocean with 38,355 SNP loci across 66 individuals. We discerned shallow population structure and observed genetic homogeneity between atolls in Seychelles and reduced gene flow between Seychelles and Mauritius. The South Equatorial Current might be the limiting mechanism of this reduced gene flow. The genome assembly will be useful for addressing taxonomic uncertainties of bonefishes globally.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10038134PMC
http://dx.doi.org/10.46471/gigabyte.44DOI Listing

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  • The roundjaw bonefish, found widely in the Indo-Pacific, is at risk of extinction, prompting the assembly of its genome from Hawai'i for better conservation efforts.
  • The assembled genome is significant, featuring a size of 1.05 gigabases and annotated with over 28,000 protein-coding genes, providing valuable insights for species management.
  • Population genetic analysis across six atolls revealed limited gene flow, particularly between Seychelles and Mauritius, potentially influenced by the South Equatorial Current, which helps to understand the genetic connectivity among bonefish populations.
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