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 instituteen_US
cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.contributor.affiliationEthiopian Institute of Agricultural Researchen_US
cg.contributor.affiliationUnited States Department of Agricultureen_US
cg.contributor.donorCGIAR Trust Funden_US
cg.contributor.initiativeGenebanksen_US
cg.contributor.initiativeSustainable Animal Productivityen_US
cg.coverage.countryEthiopiaen_US
cg.coverage.iso3166-alpha2ETen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionEastern Africaen_US
cg.creator.identifierChris Jones: 0000-0001-9096-9728en_US
cg.creator.identifierMeki Muktar: 0000-0003-4750-8031en_US
cg.creator.identifierAlemayehu Teressa Negawo: 0000-0001-8974-5321en_US
cg.creator.identifierAbel Teshome Gari: 0000-0001-7137-5991en_US
cg.creator.identifierErmias Haile: 0000-0003-4391-6185en_US
cg.creator.identifierAlice Muchugi: 0000-0002-8901-1376en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.1038/s41598-023-41583-7en_US
cg.isijournalISI Journalen_US
cg.issn2045-2322en_US
cg.issue1en_US
cg.journalScientific Reportsen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.actionAreaGenetic Innovationen_US
cg.subject.actionAreaResilient Agrifood Systemsen_US
cg.subject.ilriANIMAL FEEDINGen_US
cg.subject.ilriCROP-LIVESTOCKen_US
cg.subject.ilriCROPSen_US
cg.subject.ilriFORAGESen_US
cg.subject.impactAreaEnvironmental health and biodiversityen_US
cg.subject.impactAreaPoverty reduction, livelihoods and jobsen_US
cg.volume13en_US
dc.contributor.authorMuktar, Meki S.en_US
dc.contributor.authorBizuneh, T.en_US
dc.contributor.authorAnderson, W.en_US
dc.contributor.authorAssefa, Yilikalen_US
dc.contributor.authorNegawo, Alemayehu T.en_US
dc.contributor.authorTeshome, Abelen_US
dc.contributor.authorHabte, Ermiasen_US
dc.contributor.authorMuchugi, Aliceen_US
dc.contributor.authorFeyissa, T.en_US
dc.contributor.authorJones, Christopher S.en_US
dc.date.accessioned2023-09-18T08:00:12Zen_US
dc.date.available2023-09-18T08:00:12Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/131879en_US
dc.titleAnalysis of global Napier grass (Cenchrus purpureus) collections reveals high genetic diversity among genotypes with some redundancy between collectionsen_US
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_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceCGIARen_US
dcterms.audienceDonorsen_US
dcterms.audienceScientistsen_US
dcterms.available2023-09-04en_US
dcterms.bibliographicCitationMuktar, M.S., Bizuneh, T., Anderson, W., Assefa, Y., Terresa, A., 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_US
dcterms.issued2023en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherSpringeren_US
dcterms.subjectanimal feedingen_US
dcterms.subjectgrassesen_US
dcterms.subjectpennisetum purpureumen_US
dcterms.typeJournal Articleen_US

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