Analysis of global Napier grass (Cenchrus purpureus) collections reveals high genetic diversity among genotypes with some redundancy between collections

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cg.authorship.typesCGIAR and developing country institute
cg.authorship.typesCGIAR and advanced research institute
cg.contributor.affiliationInternational Livestock Research Institute
cg.contributor.affiliationEthiopian Institute of Agricultural Research
cg.contributor.affiliationUnited States Department of Agriculture
cg.contributor.donorCGIAR Trust Fund
cg.contributor.initiativeGenebanks
cg.contributor.initiativeSustainable Animal Productivity
cg.coverage.countryEthiopia
cg.coverage.iso3166-alpha2ET
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierChris Jones: 0000-0001-9096-9728
cg.creator.identifierMeki Muktar: 0000-0003-4750-8031
cg.creator.identifierAlemayehu Teressa Negawo: 0000-0001-8974-5321
cg.creator.identifierAbel Teshome Gari: 0000-0001-7137-5991
cg.creator.identifierErmias Haile: 0000-0003-4391-6185
cg.creator.identifierAlice Muchugi: 0000-0002-8901-1376
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1038/s41598-023-41583-7
cg.isijournalISI Journal
cg.issn2045-2322
cg.issue1
cg.journalScientific Reports
cg.reviewStatusPeer Review
cg.subject.actionAreaGenetic Innovation
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.ilriANIMAL FEEDING
cg.subject.ilriCROP-LIVESTOCK
cg.subject.ilriCROPS
cg.subject.ilriFORAGES
cg.subject.impactAreaEnvironmental health and biodiversity
cg.subject.impactAreaPoverty reduction, livelihoods and jobs
cg.volume13
dc.contributor.authorMuktar, Meki S.
dc.contributor.authorBizuneh, T.
dc.contributor.authorAnderson, W.
dc.contributor.authorAssefa, Yilikal
dc.contributor.authorNegawo, Alemayehu T.
dc.contributor.authorTeshome, Abel
dc.contributor.authorHabte, Ermias
dc.contributor.authorMuchugi, Alice
dc.contributor.authorFeyissa, T.
dc.contributor.authorJones, Christopher S.
dc.date.accessioned2023-09-18T08:00:12Zen
dc.date.available2023-09-18T08:00:12Zen
dc.identifier.urihttps://hdl.handle.net/10568/131879
dc.titleAnalysis of global Napier grass (Cenchrus purpureus) collections reveals high genetic diversity among genotypes with some redundancy between collectionsen
dcterms.abstractGenetic diversity amongst genotypes of several Napier grass collections was analyzed and compared with the diversity in a set of open pollinated progeny plants. A total of 114,881 SNP and 46,293 SilicoDArT genome-wide markers were generated on 574 Napier grass genotypes. Of these, 86% of the SNP and 66% of the SilicoDArT markers were mapped onto the fourteen chromosomes of the Napier grass genome. For genetic diversity analysis, a subset of highly polymorphic and informative SNP markers was filtered using genomic position information, a maximum of 10% missing values, a minimum minor allele frequency of 5%, and a maximum linkage-disequilibrium value of 0.5. Extensive genetic variation, with an average Nei’s genetic distance value of 0.23, was identified in the material. The genotypes clustered into three major and eleven sub-clusters with high levels of genetic variation contained both within (54%) and between (46%) clusters. However, we found that there was low to moderate genetic differentiation among the collections and that some overlap and redundancy occurred between collections. The progeny plants were genetically diverse and divergent from the germplasm collections, with an average FST value of 0.08. We also reported QTL regions associated with forage biomass yield based on field phenotype data measured on a subset of the Napier grass collections. The findings of this study offer useful information for Napier grass breeding strategies, enhancement of genetic diversity, and provide a guide for the management and conservation of the collections.en
dcterms.accessRightsOpen Access
dcterms.audienceCGIAR
dcterms.audienceDonors
dcterms.audienceScientists
dcterms.available2023-09-04
dcterms.bibliographicCitationMuktar, M.S., Bizuneh, T., Anderson, W., Assefa, Y., Negawo A.T., Teshome, A., Habte, E., Muchugi, A., Feyissa, T. and Jones, C.S. 2023. Analysis of global Napier grass (Cenchrus purpureus) collections reveals high genetic diversity among genotypes with some redundancy between collections. Scientific Reports 13:14509.en
dcterms.issued2023
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringer
dcterms.subjectanimal feedingen
dcterms.subjectgrassesen
dcterms.subjectpennisetum purpureumen
dcterms.typeJournal Article

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