Show simple item record

dc.contributor.authorMufumbo, R.
dc.contributor.authorChakrabarty, S.
dc.contributor.authorNyine, M.
dc.contributor.authorWindpassinger, S. M.
dc.contributor.authorMulumba, J. W.
dc.contributor.authorBaguma, Y.
dc.contributor.authorOdong, L. T.
dc.contributor.authorFrisch, M.
dc.contributor.authorSnowdon, R. J.
dc.date.accessioned2023-12-07T15:23:30Z
dc.date.available2023-12-07T15:23:30Z
dc.date.issued2023
dc.identifier.urihttps://jlupub.ub.uni-giessen.de//handle/jlupub/18796
dc.identifier.urihttp://dx.doi.org/10.22029/jlupub-18160
dc.description.abstractThe Uganda National GeneBank is a key reservoir of genetic diversity for sorghum (Sorghum bicolor (L.) Moench), with over 3333 accessions which are predominantly landraces (96.48%), but also includes the weedy accessions (0.63%), breeding lines (2.5%) and released varieties (0.39%). This genetic resource from the primary center of sorghum diversity and domestication is important for broadening the genetic diversity of elite cultivars through breeding. However, due to the large size of the collection, we aimed to select a core set that captures the maximum genetic and phenotypic diversity, in order to facilitate detailed genetic and phenotypic evaluation at a reduced cost. To achieve this, we genotyped the entire collection in 2020 using Diversity Array Technology sequencing (DArTseq). A total of 27,560 SNPs were used to select a core collection of 310 accessions using the GenoCore software. A comparison of core set and the whole collection based on the polymorphism information content, observed heterozygosity, expected heterozygosity and minor allele frequency showed no significant difference between the two sets, indicating that the core collection adequately captures the genetic diversity and allelic richness present in the whole collection. The core collection captures all the five major sorghum races and the 10 intermediate hybrids. The most strongly represented race is guinea (24.5%), while caudatum-bicolor is least frequent (0.69%). Landraces account for 92.2% of the core collection, whereas breeder’s lines, weedy accessions and released varieties contribute 2.2%, 3.5% and 1.9%, respectively.
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (DFG); ROR-ID:018mejw64
dc.language.isoen
dc.rightsNamensnennung 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddcddc:630
dc.titleGenomics-based assembly of a sorghum bicolor (L.) moench core collection in the Uganda national genebank as a genetic resource for sustainable sorghum breeding
dc.typearticle
local.affiliationFB 09 - Agrarwissenschaften, Ökotrophologie und Umweltmanagement
local.projectgrant number 393730107
local.source.spage1439
local.source.epage1454
local.source.journaltitleGenetic resources and crop evolution
local.source.volume70
local.source.urihttps://doi.org/10.1007/s10722-022-01513-4


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record