A fast and effective method to distinguish cultivated fonio species: conservation and evaluation perspectives
Plant genetic resources characterization is essential for their conservation and their use in both breeding strategies and adaptation to global change. This is all the more important for species often neglected by research such as fonio. Fonio refers to two indigenous small millets grown in West Africa, white and black fonio (Digitaria exilis and Digitaria iburua, respectively). This research was carried out to develop a simple and reliable method to identify the two cultivated species of fonio in the context of genebank collection. A morphometric analysis was performed on seeds of 98 accessions of D. exilis and 20 accessions of D. iburua. Morphometric characters measured were seed dimensions, shape and colour. We showed that the major delimiting criterion was the seed width and that the seeds of black fonio were wider than those of white fonio. The proposed method, based on seed morphometrics, could be applied systematically in conservation routine to guarantee the accuracy of the passport data in fonio collections, as well as to identify fonio remains for archaeological studies.
Authors
- Mame Codou Guèye (ORCID: https://orcid.org/0009-0007-4934-0822)
- Sandrine Causse (ORCID: https://orcid.org/0000-0002-3877-8788)
- Cécile Dubois (ORCID: https://orcid.org/0000-0002-9167-4080)
- Abdou R. Ibrahim Bio Yerima (ORCID: https://orcid.org/0000-0001-8590-9368)
- Adéline Barnaud (ORCID: https://orcid.org/0000-0001-9896-1210)
- Enoch G. Achigan‐Dako (ORCID: https://orcid.org/0000-0002-5493-0516)
- Sylvie Vancoppenolle
- Joseph Adjebeng‐Danquah (ORCID: https://orcid.org/0000-0002-9472-0636)
- Louise Akanvou (ORCID: https://orcid.org/0000-0003-2430-014X)
- Happiness Ogba Oselebe (ORCID: https://orcid.org/0000-0003-3786-5705)
- Jean‐François Rami (ORCID: https://orcid.org/0000-0002-5679-3877)
- Claire Billot (ORCID: https://orcid.org/0000-0002-1017-5192)
- Richard Yaw Agyare (ORCID: https://orcid.org/0000-0003-2367-1045)
- Thomas Kaczmarek (ORCID: https://orcid.org/0000-0001-8526-4651)
- Christian Leclerc (ORCID: https://orcid.org/0000-0001-9486-7921)
- B. Diop (ORCID: https://orcid.org/0000-0003-4672-172X)
- Edak Aniedi Uyoh (ORCID: https://orcid.org/0000-0002-6515-7741)
- Mamadou Billo Barry
- Yacoubou Bakasso
- Saidou Idi Sani
Institutions
- Université Abdou Moumouni (NE)
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement (FR)
- Agropolis International (FR)
- University of Calabar (NG)
- Centre d'Etude Regional pour l'Amelioration de l'Adaptation a la Secheresse (SN)
- Gamal Abdel Nasser University of Conakry (GN)
- Institut National de la Recherche Agronomique du Niger (NE)
- Institute for Biodiversity (DE)
- Diversité, adaptation et développement des plantes (FR)
- Université d'Abomey-Calavi (BJ)
- Amélioration Génétique et Adaptation des Plantes méditerranéennes et tropicales (FR)
- Istituto di Genetica Molecolare (IT)
- Council for Scientific and Industrial Research (GH)
- Université de Maradi (NE)
- Institut Sénégalais de Recherches Agricoles (SN)
- Institut de Recherche Agronomique de Guinée (GN)
- Institut de Recherche pour le Développement (FR)
- Ebonyi State University (NG)
Publication Details
- Journal
- Genetic Resources
- Published
- 2025-09-29
- DOI
- https://doi.org/10.46265/genresj.jdut8893
- Primary Topic
- Horticultural and Viticultural Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agropolis Fondation
- European Commission
- Agence Nationale de la Recherche