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Leveraging target enrichment and genome skimming (Hyb-Seq) of herbarium collections to unlock timber DNA barcoding

Research output: Contribution to journalA1: Web of Science-articlepeer-review

  • Sidonie Bellot
  • Dyana Ndiade Bourobou
  • Camila Quintero-Berns
  • Laszlo Csiba
  • Peter Gasson
  • Barrett McBride
  • Bhely Angoboy Ilondea
  • Gael U. D. Bouka
  • Emmanuel Ebanyenle
  • Cynel Gwenael Moundounga
  • Martin Ricker
  • Philomena Yarwoah
  • Guy Herman Zanguim Tchoutezou
  • Janvier Lisingo
  • Victor Deklerck
Premise DNA barcoding for timber species identification requires comprehensive reference datasets, informative DNA barcodes, and cost-effective protocols. We developed a workflow leveraging Hyb-Seq (target capture sequencing and genome skimming) to address these challenges, and we tested it on four genera from the mahogany family (Meliaceae).Methods We sequenced up to 350 nuclear and 177 plastid loci from 132 herbarium specimens representing leaf samples of 22 species. We determined the DNA barcoding potential of each locus by looking at species recovery and monophyly in gene trees. We then selected 13 short regions (candidate barcodes) within high-potential loci and tested their PCR amplification and Sanger sequencing on wood DNA.Results Three candidate barcodes emerged as the most reliably sequenced from wood DNA and as providing the most accurate species-level identifications, with species monophyly rates above 80as inferred from DNA color) than with DNA degradation.Discussion Our reference data and candidate barcodes provide a foundation to support the DNA barcoding of mahogany and its relatives. Our workflow illustrates how the wealth of Hyb-Seq data currently generated from global herbaria may be leveraged to monitor plant diversity.
Original languageEnglish
Article numbere70063
JournalAPPLICATIONS IN PLANT SCIENCES
Volume14
Issue number3, SI
ISSN2168-0450
DOIs
Publication statusPublished - 1-May-2026

    Research areas

  • Angiosperms353, Entandrophragma, ITS, Khaya, Lovoa, Swietenia, trnL-trnF, wood DNA extraction

DOI

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