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Genetic research

DNA Research Breakthrough: Complete Chloroplast Genome Sequenced in Critically Endangered Plant Species

Strategic Insights

— 1 min read

Researchers from the University of the Philippines have made a significant breakthrough in DNA research, sequencing the complete chloroplast genome of the Cynometra cebuensis F. Seid., a critically endangered plant species endemic to Cebu, Philippines. The study provides essential data for the plant's identification, phylogeny, and conservation. The research team, led by Jeremaiah L. Estrada, has published their findings in the Mitochondrial DNA. Part B. Resources journal.

Key Takeaways:

  • The Cynometra cebuensis F. Seid. is a critically endangered species endemic to Cebu, Philippines, with no published genomic data prior to this study.
  • The complete chloroplast genome of C. cebuensis is 158,474 base pairs (bp) in length, comprising a large single-copy (86,821 bp), small single-copy (19,329 bp), and two inverted repeats (26,162 bp each) with a GC content of 36.4%.
  • The genome contains 125 genes, including 80 protein-coding, 37 tRNA, and eight rRNA.
  • Phylogenetic analysis places C. cebuensis in a monophyletic group within Detarioideae, closely related to C. lenticellata.
  • The study provides essential data for the plant's identification, phylogeny, and conservation.

Statistics:

  • The complete chloroplast genome of C. cebuensis is 158,474 bp in length.
  • The genome has a GC content of 36.4%.
  • The genome contains 125 genes.
  • 80 of the genes are protein-coding, 37 are tRNA, and eight are rRNA.
  • Phylogenetic analysis indicates a monophyletic grouping of C. cebuensis within Detarioideae.

Sources:

  • The complete chloroplast genome of Cynometra cebuensis F. Seid. (Fabaceae), a critically endangered endemic plant from Cebu, Philippines. Mitochondrial DNA. Part B. Resources, 2025,10(9):809-815.
  • NewsRx. Studies from University of the Philippines in the Area of DNA Research Described [The complete chloroplast genome of Cynometra cebuensis F. Seid. (Fabaceae), a critically endangered endemic plant from Cebu, Philippines]. Life Science Weekly. September 9, 2025; p 5355.

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