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dc.contributor.authorTeklu, D.H.
dc.contributor.authorShimelis, H.
dc.contributor.authorAbebe, A.T.
dc.contributor.authorMashilo, J.
dc.contributor.authorZhang, X.
dc.contributor.authorZhang, Y.
dc.contributor.authorDossa, K.
dc.contributor.authorShayanowako, A.I.T.
dc.date.accessioned2021-07-26T09:57:49Z
dc.date.available2021-07-26T09:57:49Z
dc.date.issued2021
dc.identifier.citationTeklu, D.H., Shimelis, H., Abebe, A.T., Mashilo, J., Zhang, X., Zhang, Y., ... & Shayanowako, A.I.T. (2021). Genetic variability and population structure of Ethiopian Sesame (Sesamum indicum L.) germplasm assessed through phenotypic traits and simple sequence repeats markers. Plants, 10(6), 1129: 1-18.
dc.identifier.issn2223-7747
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7185
dc.description.abstractEthiopia is one of the centers of genetic diversity of sesame (Sesamum indicum L.). The sesame genetic resources present in the country should be explored for local, regional, and international genetic improvement programs to design high-performing and market-preferred varieties. This study’s objective was to determine the extent of genetic variation among 100 diverse cultivated sesame germplasm collections of Ethiopia using phenotypic traits and simple sequence repeat (SSR) markers to select distinct and complementary genotypes for breeding. One hundred sesame entries were field evaluated at two locations in Ethiopia for agro-morphological traits and seed oil content using a 10 × 10 lattice design with two replications. Test genotypes were profiled using 27 polymorphic SSR markers at the Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences. Analysis of variance revealed significant (p ≤ 0.05) entry by environment interaction for plant height, internode length, number of secondary branches, and grain yield. Genotypes such as Hirhir Kebabo Hairless-9, Setit-3, Orofalc ACC-2, Hirhir Humera Sel-6, ABX = 2-01-2, and Setit-1 recorded grain yield of >0.73 ton ha−1 with excellent performance in yield component such as oil yield per hectare. Grain yield had positive and significant (p < 0.01) associations with oil yield (r = 0.99), useful for simultaneous selection for yield improvement in sesame. The SSR markers revealed gene diversity and polymorphic information content values of 0.30 and 0.25, respectively, showing that the tested sesame accessions were genetically diverse. Cluster analysis resolved the accessions into two groups, while population structure analysis revealed four major heterotic groups, thus enabling selection and subsequent crossing to develop breeding populations for cultivar development. Based on phenotypic and genomic divergence, the following superior and complementary genotypes: Hirhir Humera Sel-6, Setit-3, Hirhir Kebabo Hairless Sel-4, Hirhir Nigara 1st Sel-1, Humera-1 and Hirhir Kebabo Early Sel-1 (from cluster II-a), Hirhir kebabo hairless-9, NN-0029(2), NN0068-2 and Bawnji Fiyel Kolet, (from cluster II-b). The selected genotypes will serve as parents in the local breeding program in Ethiopia.
dc.description.sponsorshipEthiopian Agricultural Transformation Agency
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-18
dc.language.isoen
dc.subjectAgronomic Characters
dc.subjectEthiopia
dc.subjectGenetic Diversity
dc.subjectMicrosatellites
dc.subjectPopulation Structure
dc.subjectComponent Analysis
dc.subjectSesamum Indicum
dc.titleGenetic variability and population structure of Ethiopian Sesame (Sesamum indicum L.) germplasm assessed through phenotypic traits and simple sequence repeats markers
dc.typeJournal Article
cg.contributor.affiliationUniversity of KwaZulu-Natal
cg.contributor.affiliationEthiopian Agricultural Transformation Agency
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationChinese Academy of Agricultural Sciences
cg.contributor.affiliationUniversity of Abomey-Calavi
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryEthiopia
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.identifier.bibtexciteidTEKLU:2021
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectBiodiversity
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.journalPlants
cg.notesOpen Access Journal; Published online: 02 Jun 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.3390/plants10061129
cg.futureupdate.requiredNo
cg.identifier.issue6: 1129
cg.identifier.volume10
cg.contributor.acknowledgementsThe Ethiopian Agricultural Transformation Agency (ATA), the Ethiopian Institute of Agricultural Research (EIAR), staff of the Humera Agricultural Research Centre (HuARC), andMelkaWerer Agricultural Research Centre (WARC) are greatly appreciated for germplasm supply and the overall research support.


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