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Collection and characterization of cassava germplasm in Comoros

dc.contributor.authorFerguson, M.
dc.contributor.authorNtawuruhunga, P.
dc.contributor.authorFouad, M.O.
dc.contributor.authorHassane, O.K.M.
dc.contributor.authorCharmila, M.A.
dc.contributor.authorHamza, A.A.
dc.contributor.authorMohamed, N.A.
dc.contributor.authorDieng, I.
dc.contributor.authorNjukwe, E.
dc.contributor.authorShah, T.
dc.date.accessioned2023-10-04T13:42:07Z
dc.date.available2023-10-04T13:42:07Z
dc.date.issued2023-06-15
dc.identifier.citationFerguson, M., Ntawuruhunga, P., Fouad, M.O., Hassane, O.K.M., Charmila, M.A., Hamza, A.A., ... & Shah, T. (2023). Collection and characterization of cassava germplasm in Comoros. Genetic Resources and Crop Evolution, 1-21.
dc.identifier.issn0925-9864
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8268
dc.description.abstractIn Comoros, cassava plays a major food security role, however yields are low as few modern cultivars are grown. Prior to the introduction of new cultivars, and as a germplasm resource for breeders, germplasm collection missions were undertaken in the three largest islands; Ngazidja, Ndzouani and Mwali; and associated farmer knowledge documented. Cassava landraces were collected from 34 farms, and 17 key informant interviews conducted. Stakes of 79 collected landraces were planted for agro-morphological characterization. All landraces were genotyped using DaRTSeq technology and data analysed to identify duplicates. Genetic fingerprints of 46 unique landraces were co-analysed with 402 previously genotyped landraces and improved cultivars from Tanzania. From this set only one match was made with a very old cultivar, Aipin Valenca, from the Northern Zone in Tanzania. According to SNP data, germplasm from the three islands of Comoros were similarly related to one another, and more distantly related to germplasm from Tanzania. They were most closely related to germplasm from the Northern Zone in Tanzania, suggesting a possible historical introduction of germplasm from this area. Lower levels of diversity were observed on these islands, as well as the islands of Pemba and Zanzibar. This implies limited introduction and movement of cassava germplasm into the islands. Introductions of improved germplasm to Comoros is recommended with the simultaneous conservation of collected unique landraces. Two landraces with high market demand and reported tolerance to diseases were identified for further evaluation with a view to multiplication and distribution and incorporation into the breeding program.
dc.description.sponsorshipInternational Fund for Agricultural Development
dc.format.extent1-21
dc.language.isoen
dc.subjectCassava
dc.subjectFood Security
dc.subjectCultivars
dc.subjectGermplasm
dc.subjectComoros
dc.subjectMorphology
dc.titleCollection and characterization of cassava germplasm in Comoros
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInstitut National de Recherche pour L’Agriculture, La Pêche et L’Environnement, Comoros
cg.coverage.regionAfrica
cg.coverage.regionSouthern Africa
cg.coverage.countryComoros
cg.coverage.hubSouthern Africa Hub
cg.coverage.hubEastern Africa Hub
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiometrics
cg.researchthemeBiotech and Plant Breeding
cg.researchthemeNutrition and Human Health
cg.identifier.bibtexciteidFERGUSON:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalGenetic Resources and Crop Evolution
cg.notesOpen Access Article; Published online: 15 Jun 2023
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1007/s10722-023-01626-4
cg.iitaauthor.identifierMorag Ferguson: 0000-0002-7763-5173
cg.iitaauthor.identifierPheneas Ntawuruhunga: 0000-0003-2330-9070
cg.iitaauthor.identifierIbnou Dieng: 0000-0002-1051-9143
cg.iitaauthor.identifierEmmanuel NJUKWE: 0000-0002-1575-1814
cg.iitaauthor.identifierTrushar Shah: 0000-0002-0091-7981
cg.futureupdate.requiredNo


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