Genetic Connectivity of the Sky Emperor, Lethrinus mahsena Populations Across a Gradient of Exploitation Rates in Coastal Kenya

Mzingirwa, Fatuma Ali; Stomeo, Francesca; Kaunda‐Arara, Boaz; Nyunja, J.; Mujibi, Fidalis D. N.

doi:10.3389/fgene.2019.01003

Cited by 2 publications

(1 citation statement)

References 74 publications

(94 reference statements)

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“…Limited appreciation of genetics-based studies in the WIO region has been noted before (Ridgway & Sampayo, 2005). Over time, the number of genetics studies in the region have increased and primarily focused on macroscopic organisms such as fish, molluscs, crabs, lobsters, corals, seagrasses and bats (Chan et al, 2011;Gagnaire et al, 2007;Gopal et al, 2006;Jahnke et al, 2019;Macdonald et al, 2011;Mzingirwa et al, 2019;O'Brien et al, 2009;Ragionieri et al, 2010;Visram et al, 2010), due to their economic or ecological importance. Of the sequence-based published studies seen so far, only two were on microorganisms (Gardner et al, 2019;Séré et al, 2013).…”

Section: Microbial Genomics-related Approaches Appropriate For the Wi...mentioning

confidence: 99%

Metagenomics assessment of Anthropogenic impact on coral reef-associated microorganisms on the Kenyan Indian Ocean

Wambua

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The work in the above manuscript and presentations are a result of literature review for the methods that were to be employed in this project. The paper reviewed state-of-the-art genomic approaches in marine research and application to the WIO region. As for the presentations, I was invited to the Global Sustainable Blue Economy Conference in Nairobi to present my work and demonstrate the utility of molecular biology in the sustainable use of marine resources.Afterwards, Senior Warden John Wambua of the Mombasa National Marine Park and Reserve, having become aware of my presentation at the conference, requested if I could make a presentation to the KWS management staff at Mombasa to see which of the methods employed in my research they could incorporate or collaborate on in their survey and monitoring v strategies. I discussed non-invasive sampling of environmental DNA (eDNA), next generation sequencing (NGS) and bioinformatics analysis employed in my project and how they may be adapted in marine resource conservation and management. I conceived the layouts, conducted literature review and wrote the presentations.

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Section: Microbial Genomics-related Approaches Appropriate For the Wi...mentioning

confidence: 99%

Metagenomics assessment of Anthropogenic impact on coral reef-associated microorganisms on the Kenyan Indian Ocean

Wambua

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Mitogenomic Architecture of Atlantic Emperor Lethrinus atlanticus (Actinopterygii: Spariformes): Insights into the Lineage Diversification in Atlantic Ocean

Kundu,

Kang,

et al. 2024

IJMS

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The evolutionary history of emperors, particularly in the Atlantic and Indo-West Pacific Oceans, remains largely unmapped. This study explores the maternal lineage evolution of Lethrinids by examining the complete mitogenome of Lethrinus atlanticus, which is endemic to the Eastern Atlantic Ocean. Utilizing advanced next-generation sequencing, we found that the mitogenome spans 16,789 base pairs and encompasses 37 genes, including 13 protein-coding genes (PCGs), two ribosomal RNAs, 22 transfer RNAs, and an AT-rich control region (CR). Our analysis indicates a preference for AT base pairs in the L. atlanticus mitogenome (53.10%). Most PCGs begin with the ATG codon, except for COI, which starts with GTG. Relative synonymous codon usage reveals high frequencies for alanine, leucine, proline, serine, and threonine. The ratio of nonsynonymous to synonymous substitutions suggests strong negative selection across all PCGs in Lethrinus species. Most transfer RNAs exhibit typical cloverleaf structures, with the exception of tRNA-serine (GCT), which lacks a dihydrouracil stem. Comparative analysis of conserved sequence blocks across the CRs of three Lethrinus species shows notable differences in length and nucleotide composition. Phylogenetic analysis using concatenated PCGs clearly distinguishes all Lethrinus species, including L. atlanticus, and sheds light on the evolutionary relationships among Spariformes species. The estimated divergence time of approximately 20.67 million years between L. atlanticus and its Indo-West Pacific relatives provides insights into their historical separation and colonization during the late Oligocene. The distribution of Lethrinids may be influenced by ocean currents and ecological factors, potentially leading to their speciation across the Eastern Atlantic and Indo-West Pacific. This study enhances our understanding of the genetic diversity and phylogenetic relationships within Lethrinus species. Further exploration of other emperor fish mitogenomes and comprehensive genomic data could provide vital insights into their genetic makeup, evolutionary history, and environmental adaptability in marine ecosystems globally.

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Genetic Connectivity of the Sky Emperor, Lethrinus mahsena Populations Across a Gradient of Exploitation Rates in Coastal Kenya

Cited by 2 publications

References 74 publications

Metagenomics assessment of Anthropogenic impact on coral reef-associated microorganisms on the Kenyan Indian Ocean

Metagenomics assessment of Anthropogenic impact on coral reef-associated microorganisms on the Kenyan Indian Ocean

Mitogenomic Architecture of Atlantic Emperor Lethrinus atlanticus (Actinopterygii: Spariformes): Insights into the Lineage Diversification in Atlantic Ocean

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