Show simple item record

Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set

dc.contributor.authorObidiegwu, J.E.
dc.contributor.authorLoureiro, J.
dc.contributor.authorEne-Obong, E.E.
dc.contributor.authorRodríguez, E.
dc.contributor.authorKolesnikova-Allen, M.
dc.contributor.authorSantos, C.
dc.contributor.authorMuoneke, C.
dc.contributor.authorAsiedu, Robert
dc.date.accessioned2019-12-04T11:11:47Z
dc.date.available2019-12-04T11:11:47Z
dc.date.issued2009
dc.identifier.citationObidiegwu, J., Loureiro, J., Ene-Obong, E., Rodriguez, E., Kolesnikova-Allen, M., Santos, C., ... & Asiedu, R. (2009). Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set. Euphytica, 169(3), 319-326.
dc.identifier.issn0014-2336
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2497
dc.description.abstractThe Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African countries was determined using flow cytometry with propidium iodide staining. One hundred and eight of the genotypes were found to be tetraploid, 47 were hexaploid and five were octoploid. One mixoploid individual containing tetraploid and hexaploid nucleiwas also detected. A deeper analysis considering each separate taxon revealed that while for D. rotundata the majority of individuals were tetraploid, for D. cayenensis this ploidy level was not detected in any of the accessions. Also, no association between ploidy level and place of cultivation was found for the evaluated germplasm. The obtained data is highly valuable for breeding programs of Guinea yam, especially for the optimization of future hybridization experiments directed to the genetic improvement of this economically important crop
dc.description.sponsorshipKirkhouse Trust
dc.format.extent319-326
dc.language.isoen
dc.subjectBreeding
dc.subjectDioscorea Cayenensis/D. Rotundata
dc.subjectFlow Cytometry
dc.subjectGenetic Resources
dc.subjectGermplasm
dc.subjectPloidy Level
dc.titlePloidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationMichael Okpara University of Agriculture
cg.contributor.affiliationUniversity of Aveiro
cg.contributor.affiliationTun Abdul Razak Research Centre
cg.contributor.affiliationUniversity in Prague
cg.coverage.regionAfrica
cg.coverage.regionWest And Central Africa
cg.coverage.countryBenin
cg.coverage.countryBurkina Faso
cg.coverage.countryCongo
cg.coverage.countryCote D'Ivoire
cg.coverage.countryNigeria
cg.coverage.countryGuinea
cg.coverage.countryEquatorial Guinea
cg.coverage.countryGhana
cg.coverage.countrySierra Leone
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Breeding
cg.iitasubjectYam
cg.iitasubjectPlant Genetic Resources
cg.journalEuphytica
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid93248
cg.identifier.doihttps://dx.doi.org/10.1007/s10681-009-9960-1


Files in this item

Thumbnail
Name:
S09ArtObidiegwuPoidyInthomDev.pdf
Size:
216.7Kb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record