Population Structure of the World Vegetable Center Mungbean Mini Core Collection and Genome-Wide Association Mapping of Loci Associated with Variation of Seed Coat Luster

Breria, Caleb Manamik; Hsieh, Ching Hsiang; Yen, Jo-yi; Nair, Ramakrishnan M.; Lin, Chen‐Yu; Huang, Shu‐Mei; Noble, Thomas; Schafleitner, Roland

doi:10.1007/s12042-019-09236-0

Cited by 39 publications

(55 citation statements)

References 30 publications

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“…Screening and analysis of large germplasm resources have identified dominant resistance genes and assisted in the efficient integration of disease resistance in Phaseolus vulgaris (Tock et al 2017). Large germplasm sets representing the global diversity of V. radiata have been sequenced and characterised to conduct similar studies investigating V. radiata disease resistance (Breria et al 2019;Noble et al 2017). Monitoring the pathogen population as it adapts to the release of major R gene resistance will be required as gene-for-gene resistance can break down.…”

Section: Discussionmentioning

confidence: 99%

Characterisation of the Pseudomonas savastanoi pv. phaseolicola population found in Eastern Australia associated with halo blight disease in Vigna radiata

Noble

Young

Kelly³

et al. 2020

Australasian Plant Pathol.

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This study analysed the phenotypic and genotypic variation among 511 Pseudomonas savastanoi pv. phaseolicola (Psp) isolates, causing halo blight in mungbeans. Collected from symptomatic mungbean (Vigna radiata) crops throughout Australia between 2005 and 2018, a total of 352 Psp isolates were phenotypically screened. Our in planta screening against a set of four mungbean cultivars with known susceptible and resistant reactions revealed five distinctive pathotypes. Isolates belonging to pathotype 2 were the most prevalent at 84% and were found to be highly pathogenic towards all tested mungbean genotypes. Genomic variation was investigated for 205 isolates using DNA fingerprints, splitting the halo blight pathogen population into two broad genetic lineages. Further genetic testing for two known avirulence genes, avrPphE and avrPphF, identified the avrPphE gene in all the tested isolates and avrPphF present in all but two. To identify candidate avirulence genes unique to Psp isolates infecting mungbean in Australia, a comparative genomics study was undertaken on the whole-genome sequences of two epidemiologically important Psp isolates, T11544 and K4287. The information presented in this study has the potential to dramatically improve mungbean disease resistance now and into the future.

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Section: Discussionmentioning

confidence: 99%

Characterisation of the Pseudomonas savastanoi pv. phaseolicola population found in Eastern Australia associated with halo blight disease in Vigna radiata

Noble

Young

Kelly³

et al. 2020

Australasian Plant Pathol.

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“…Study materials consisted of a mungbean minicore collection of 297 accessions ( Supplementary S1 ) [ 35 ]. The minicore panel represents the diversity of the mungbean collection held by the World Vegetable Center genebank [ 36 ].…”

Section: Methodsmentioning

confidence: 99%

“…A t-test was conducted between the 2 groups to test the homogeneity of the variances between the two regional groups. We further tested for correlations between percentage germination, the agro-climatic origin of the accessions, and the population subgroups which we previously determined [ 35 ].…”

Section: Methodsmentioning

confidence: 99%

“…A set of 5288 polymorphic SNP markers (minimum allele frequency at 0.05 and linkage disequilibrium r ≤ 0.1) generated by DartSeq [ 35 ] were utilized ( Supplementary S2 ).…”

Section: Methodsmentioning

confidence: 99%

“…The population structure of the mini core collection was determined [ 35 ] and used as a covariate in both FarmCPU and GAPIT-MLM to account for relatedness among genotypes. Associations were visualized by Manhattan and quantile-quantile (QQ) plots and associations above the significance threshold were identified.…”

Section: Methodsmentioning

confidence: 99%

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A SNP-Based Genome-Wide Association Study to Mine Genetic Loci Associated to Salinity Tolerance in Mungbean (Vigna radiata L.)

Breria

Hsieh

Yen

et al. 2020

Genes

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Mungbean (Vigna radiata (L.) R. Wilzeck var. radiata) is a protein-rich short-duration legume that fits well as a rotation crop into major cereal production systems of East and South-East Asia. Salinity stress in arid areas affects mungbean, being more of a glycophyte than cereals. A significant portion of the global arable land is either salt or sodium affected. Thus, studies to understand and improve salt-stress tolerance are imminent. Here, we conducted a genome-wide association study (GWAS) to mine genomic loci underlying salt-stress tolerance during seed germination of mungbean. The World Vegetable Center (WorldVeg) mungbean minicore collection representing the diversity of mungbean germplasm was utilized as the study panel and variation for salt stress tolerance was found in this germplasm collection. The germplasm panel was classed into two agro-climatic groups and showed significant differences in their germination abilities under salt stress. A total of 5288 SNP markers obtained through genotyping-by-sequencing (GBS) were used to mine alleles associated with salt stress tolerance. Associated SNPs were identified on chromosomes 7 and 9. The associated region at chromosome 7 (position 2,696,072 to 2,809,200 bp) contains the gene Vradi07g01630, which was annotated as the ammonium transport protein (AMT). The associated region in chromosome 9 (position 19,390,227 bp to 20,321,817 bp) contained the genes Vradi09g09510 and Vradi09g09600, annotated as OsGrx_S16-glutaredoxin subgroup II and dnaJ domain proteins respectively. These proteins were reported to have functions related to salt-stress tolerance.

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Building a better Mungbean: Breeding for reproductive resilience in a changing climate

Haeften

Dudley

Kang

et al. 2023

Food and Energy Security

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Mungbean (Vigna radiata (L.) R. Wilczek var. radiata) is a significant food and cash crop grown in tropical and subtropical regions. Mungbean production and consumer demand have increased substantially over the last two decades, owing to its agronomic, nutritional and economic benefits. Despite increased breeding efforts and the expansion of mungbean production in various agro‐climatic regions, further production is hindered by low yield and variability, which is partly attributed to the impacts of abiotic stress. Abiotic stress impacts on the physiology, morphology and reproductive ability of mungbean which influences yield. Exposure to abiotic stresses at the reproductive stage is considered the most critical for yield production. In this review, we evaluate how abiotic stress impacts mungbean growth and productivity when occurring during the reproductive stage and traits that may confer adaptation. We present the limitations of current research including limited number of genotypes, lack of field experiments and detailed experimental information. We highlight the opportunities to exploit new tools and technologies, such as high‐throughput phenotyping platforms, gene editing, and genomic selection, to accelerate breeding efforts to develop more resilient mungbean cultivars for today and tomorrow.

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Population Structure of the World Vegetable Center Mungbean Mini Core Collection and Genome-Wide Association Mapping of Loci Associated with Variation of Seed Coat Luster

Cited by 39 publications

References 30 publications

Characterisation of the Pseudomonas savastanoi pv. phaseolicola population found in Eastern Australia associated with halo blight disease in Vigna radiata

Characterisation of the Pseudomonas savastanoi pv. phaseolicola population found in Eastern Australia associated with halo blight disease in Vigna radiata

A SNP-Based Genome-Wide Association Study to Mine Genetic Loci Associated to Salinity Tolerance in Mungbean (Vigna radiata L.)

Building a better Mungbean: Breeding for reproductive resilience in a changing climate

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