Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP

Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP

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Main Authors: Odesola, K.A., Olawuyi, O.J., Paliwal, R., Oyatomi, O., Abberton, M.
Format: Journal Article biblioteca
Language:English
Published: 2023
Subjects:groundnuts, grain legumes, chromosomes, drought, single nucleotide polymorphism, food security, bambara groundnut,
Online Access:https://hdl.handle.net/10568/134576
https://doi.org/10.3389/fpls.2023.1104417
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spelling dig-cgspace-10568-1345762023-12-08T19:40:06Z Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP Odesola, K.A. Olawuyi, O.J. Paliwal, R. Oyatomi, O. Abberton, M. groundnuts grain legumes chromosomes drought single nucleotide polymorphism food security bambara groundnut Open Access Journal Introduction: Bambara groundnut (BG) (Vigna subterranea [L.] Verdc) is an indigenous, resilient, but underutilized leguminous crop that occurs mostly as genetically heterogeneous landraces with limited information on the drought tolerant attributes. This study elucidates the associations between sequencing-based diversity array technology (DArTseq) and phenotypic character as well as differing indices related to drought tolerance in one hundred accessions of Bambara groundnut. Methods: The field experiments were conducted at IITA research stations in Kano and Ibadan between 2016 and 2018 planting seasons. The experiments were arranged in randomised complete block design with three replications, under the different water regimes. The phenotypic traits evaluated was further to construct the dendrogram. Genome-wide association mapping was conducted based on 5927 DArTs loci with < 20% missing data. Results and Discussions: The genome wide association study predicted drought tolerance in Bambara accessions for geometric mean productivity (GMP) and stress tolerance index (STI). TVSu-423 had the highest GMP and STI values (28.50, 2.40), while TVSu-2017 had the lowest at GMP (1.74) and STI (0.01) respectively. The relative water content (%) was significantly higher for accessions; TVSu-266 (60.35, 61.49), TVSu-2 (58.29, 53.94), and TVSu-411 (55.17, 58.92) in 2016/2017 and 2017/2018, respectively. The phenotypic characters studied delineated the accessions into two major clusters and five distinct sub-clusters, indicating variations across all the geographical locations. The 5,927 DArTseq genomic markers in association with STI further grouped the 100 accessions into two main clusters. TVSu-1897 from Botswana (Southern Africa) was in the first cluster, while the remaining 99 accessions from Western, Central, and Eastern Africa made up the second cluster. The eight significant Quantitative Trait Loci (QTLs) (24346377|F|0-22:A>G-22:A>G, 24384105|F|0-56:A>G33 :A> G, 24385643|F|0-53:G>C-53:G>C, 24385696|F|0-43:A>G-43:A>G, 4177257|F|0-44:A>T-44:A>T, 4182070|F|0-66:G>A-66:G>A, 4183483|F|0-24:G>A-24:G>A, 4183904|F|0-11:C>T-11:C>T) identified with Bonferroni threshold was in association with STI, indicative of variations under the drought-stressed condition. The observation of consistent SNPs in the 2016 and 2017 planting seasons, as well as in combination with the 2016 and 2017 planting seasons, led to the designation of these QTLs as significant. The drought selected accessions could form basis for hybridization breeding. The identified quantitative trait loci could be useful in marker-assisted selection in drought molecular breeding programs. 2023 2023-11-21T13:28:26Z 2023-11-21T13:28:26Z Journal Article Odesola, K.A., Olawuyi, O.J., Paliwal, R., Oyatomi, O. & Abberton, M. (2023). Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP. Frontiers in Plant Science, 14: 1104417, 1-14. 1664-462X https://hdl.handle.net/10568/134576 https://doi.org/10.3389/fpls.2023.1104417 BIOTECH & PLANT BREEDING en CC-BY-4.0 Open Access 1-14 application/pdf Frontiers in Plant Science
institution CGIAR
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-cgspace
tag biblioteca
region Europa del Oeste
libraryname Biblioteca del CGIAR
language English
topic groundnuts
grain legumes
chromosomes
drought
single nucleotide polymorphism
food security
bambara groundnut
groundnuts
grain legumes
chromosomes
drought
single nucleotide polymorphism
food security
bambara groundnut
spellingShingle groundnuts
grain legumes
chromosomes
drought
single nucleotide polymorphism
food security
bambara groundnut
groundnuts
grain legumes
chromosomes
drought
single nucleotide polymorphism
food security
bambara groundnut
Odesola, K.A.
Olawuyi, O.J.
Paliwal, R.
Oyatomi, O.
Abberton, M.
Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP
description Open Access Journal
format Journal Article
topic_facet groundnuts
grain legumes
chromosomes
drought
single nucleotide polymorphism
food security
bambara groundnut
author Odesola, K.A.
Olawuyi, O.J.
Paliwal, R.
Oyatomi, O.
Abberton, M.
author_facet Odesola, K.A.
Olawuyi, O.J.
Paliwal, R.
Oyatomi, O.
Abberton, M.
author_sort Odesola, K.A.
title Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP
title_short Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP
title_full Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP
title_fullStr Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP
title_full_unstemmed Genome-wide association analysis of phenotypic traits in Bambara groundnut under drought-stressed and non-stressed conditions based on DArTseq SNP
title_sort genome-wide association analysis of phenotypic traits in bambara groundnut under drought-stressed and non-stressed conditions based on dartseq snp
publishDate 2023
url https://hdl.handle.net/10568/134576
https://doi.org/10.3389/fpls.2023.1104417
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AT olawuyioj genomewideassociationanalysisofphenotypictraitsinbambaragroundnutunderdroughtstressedandnonstressedconditionsbasedondartseqsnp
AT paliwalr genomewideassociationanalysisofphenotypictraitsinbambaragroundnutunderdroughtstressedandnonstressedconditionsbasedondartseqsnp
AT oyatomio genomewideassociationanalysisofphenotypictraitsinbambaragroundnutunderdroughtstressedandnonstressedconditionsbasedondartseqsnp
AT abbertonm genomewideassociationanalysisofphenotypictraitsinbambaragroundnutunderdroughtstressedandnonstressedconditionsbasedondartseqsnp
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