A molecular diagnostic for identifying central African forest artiodactyls from faecal pellets

S. Ntie, A. R. Johnston, P. Mickala, A. E. Bowkett, B. Jansen van Vuuren, M. Colyn, P. Telfer, F. Maisels, O. Hymas, R. L. Rouyer, R. A. Wallace, K. LeBlanc, N. van Vliet, G. Sonet, E. Verheyen, D. Pires, E. J. Wickings, S. A. Lahm, N. M. Anthony

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Small to medium-sized central African forest artiodactyls constitute a diverse yet heavily hunted group composed primarily of species within the genera Cephalophus, Neotragus, Tragelaphus and Hyemoschus. Of these genera, Cephalophus is the richest with as many as seven sympatric species known to occur in central African forests. However, differentiating species from their faeces or from tissue where the whole carcass is unavailable is very difficult. In order to develop a robust molecular diagnostic for species identification, a database of mitochondrial cytochrome b (553 bp) and control region (∼675 bp) sequences was compiled from all forest Cephalophus species and other similarly sized, sympatric Tragelaphus, Neotragus and Hyemoschus species. Reference phylogenies from each marker were then used to recover the identity of sequences obtained from unknown faecal samples collected in the field. Results were then compared to determine which region best recovered species identity with the highest statistical support. Restriction fragment length polymorphisms (RFLPs) were also assessed as an alternative method for rapid species identification. Of the methods examined, tree-based analyses built on a geographically comprehensive database of control region sequences was the best means of reliably recovering species identity from central African duikers. However, three sister taxa appear indistinguishable (Cephalophus callipygus, Cephalophus ogilbyi and Cephalophus weynsi) and not all species were monophyletic. This lack of monophyly may be due to incomplete lineage sorting commonly observed in recently derived taxa, hybridization or the presence of nuclear translocated copies of mitochondrial DNA. The high level of intra-specific variation and lack of robust species-specific diagnostic sites made an RFLP-based approach to duiker species identification difficult to implement. The tree-based control region diagnostic presented here has many important applications including fine-scale mapping of species distributions, identification of confiscated tissue and environmental impact assessments.

Original languageEnglish
Pages (from-to)80-93
Number of pages14
JournalAnimal Conservation
Issue number1
Publication statusPublished - Jan 2010
Externally publishedYes


  • Artiodactyl
  • Barcoding
  • Central Africa
  • Control region
  • Cytochrome b
  • Duiker
  • RFLP
  • Species diagnostic

ASJC Scopus subject areas

  • Ecology
  • Nature and Landscape Conservation


Dive into the research topics of 'A molecular diagnostic for identifying central African forest artiodactyls from faecal pellets'. Together they form a unique fingerprint.

Cite this