GGE Biplot Analysis of Genotype × Environment Interaction and Yield Stability in Bambara Groundnut

Olanrewaju, Oluwaseyi Samuel; Oyatomi, Olaniyi; Babalola, Olubukola Oluranti; Abberton, Michael T.

doi:10.3390/agronomy11091839

Cited by 38 publications

(42 citation statements)

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“…This suggests the importance of assessment of accessions under different environments to identify better performing accessions. Effects of GEI on crop evaluation have been reported in various studies (Aarthi et al, 2020;Rubilar et al, 2020;Olanrewaju et al, 2021). However, the accessions showed significant variation in plant height, which is contrary to the reports of Ntundu et al (2006) in Tanzania and Shegro et al (2013) in South Africa.…”

Section: Discussionmentioning

confidence: 75%

“…The crop is highly nutritious (Halimi et al, 2019) and grown in different countries in and out of Africa. Despite a lot of promise held from the reports of various studies (Obidiebube et al, 2020;Khan et al, 2021;Olanrewaju et al, 2021), BGN is still an underutilized crop. As a drought-tolerant legume (Mayes et al, 2019), it deserves greater attention than it is presently receiving.…”

Section: Introductionmentioning

confidence: 99%

“…It will also help characterize useful germplasm for breeding programs and improve selection efficiency for environmental conditions. Therefore, METs are essential in selecting high yielding accessions of crop varieties suitable for specific environments although, the adaptation of specific genotypes to various environments can be gene-specific (Olanrewaju et al, 2021). In addition, most agromorphological studies on BGN have focused on only one location with the only exception being the study by Mogale (2018).…”

Section: Introductionmentioning

confidence: 99%

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Genetic Diversity and Environmental Influence on Growth and Yield Parameters of Bambara Groundnut

et al. 2021

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Bambara groundnut (BGN) is a drought-tolerant crop majorly cultivated in sub-Saharan Africa. Due to a lack of extensive research, marginalization, lack of awareness, and lack of available fund among others, this crop's improvement has been limited. The development of this crop depends on evaluation and selection of unique and stable breeding lines in different environments. This study aims to estimate genetic diversity using morphological traits at different locations in 95 accessions of BGN collected from the Genebank of the International Institute of Tropical Agriculture (IITA), Ibadan. The experiment was carried out in three replicates at IITA experimental sites in two agroecological zones in Ibadan (7°40′19.62″ N, 3°91′73.13″ E) and Ikenne (6°51′00.873″ N, 3°41′48.528″ E) using a randomized complete block design. Ten vegetative growth traits and eight yield traits were scored. The data was subjected to ANOVA, PCA, correlation, and cluster analysis. Estimations of genetic parameters and broad sense heritability were carried out on the traits. ANOVA revealed significant variation in each trait except for days to emergence. Significant variation was also observed for accession and location interactions (genotype x environment interactions) for plant height, leaf length, leaf width, chlorophyll content, number of petioles, germination count, number of pods, number of seeds, seed length, seed width, and yield. PC1 and PC2 show 42.3% of the total variations observed by the PC, with seed thickness contributing more to PC1 and the number of seeds contributing more to PC2. Cluster analysis categorized the accessions into four distinct groups. The number of pods had the highest genotypic coefficient of variation of 32.55% and the phenotypic coefficient of variation of 97.61%, while seed length (0.63), seed width (0.54), and seed thickness (0.58) have high heritability values. The genetic advance was highest in yield (76.15%) and lowest in days to 50% germination (0.21%). This study can be used to predict appropriate agroecological zones for the planting of BGN while the knowledge of the diversity of the accessions based on the traits could serve a guide in selecting the best trait for the improvement of the crop.

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Section: Discussionmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Genetic Diversity and Environmental Influence on Growth and Yield Parameters of Bambara Groundnut

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“…Bambara groundnut (BGN) [ Vigna subterranea (L.) Verdc.] is a drought-tolerant, underutilized legume notable for its ability to thrive in marginal soils ( Mayes et al, 2019 ; Olanrewaju et al, 2021b , c ). Although studies have reported bacterial communities from various genotypes, compartments, and growth stages on many plants ( Hamonts et al, 2018 ; Brown et al, 2020 ; Wang et al, 2020 ; Cordovez et al, 2021 ; Zheng et al, 2021 ), no such study is available on BGN.…”

Section: Introductionmentioning

confidence: 99%

Plant Growth Stage Drives the Temporal and Spatial Dynamics of the Bacterial Microbiome in the Rhizosphere of Vigna subterranea

2022

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Bambara groundnut (BGN) is an underutilized legume commonly found in sub-Saharan Africa. It thrives in marginal soils and is resistant to drought stress. Several studies have been carried out on the nutritional properties of BGN, but very little is known about the effects of plant growth changes and development on rhizosphere bacterial dynamics and function. This study reports on the bacterial dynamics and function in the bulk and rhizosphere soils of BGN at different growth stages (vegetative, flowering, pod-filling, and maturation stages). Aside from the maturation stage that shows distinct community structure from the other growth stages, results obtained showed no significant differences in bacterial community structure among the other growth stages. At a closer level, Actinobacteria, Proteobacteria, and Acidobacteria were dominant in rhizosphere soils at all growth stages. The bulk soil had the least average phyla abundance, while the maturity stage was characterized by the highest average phyla abundance. Rubrobacter, Acidobacterium, and Skermanella were the most predominant genus. It was observed from the analysis of operational taxonomic units that there was significant change in the bacterial structure of the rhizosphere with a higher abundance of potential plant growth-promoting rhizobacteria, at the different growth stages, which include the genera Bacillus and Acidobacterium. Biomarker analysis revealed 7 and 4 highly significant bacterial biomarkers by linear discriminant analysis effect size and random forest analysis at the maturation stage, respectively. The results obtained in this study demonstrated that the bacterial communities of BGN rhizosphere microbiome dynamics and function are influenced by the plant’s growth stages.

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“…Furthermore, BGN reportedly ticks the box for achieving food security crop ( Massawe et al, 2016 ; Halimi et al, 2019 ; Olanrewaju et al, 2022 ). It is available, accessible, and affordable, and it is a source of income for farmers in sub-Sahara Africa due to its ability to tolerate drought and fix atmospheric nitrogen ( Paliwal et al, 2020 ; Majola et al, 2021 ; Olanrewaju et al, 2021c ). Furthermore, it cross-nodulates with nitrogen-fixing bacteria from other leguminous plants like cowpea ( Laurette et al, 2015 ; Hassen et al, 2022 ) which further enhances its nitrogen-fixing ability.…”

Section: Introductionmentioning

confidence: 99%

Improving Bambara Groundnut Production: Insight Into the Role of Omics and Beneficial Bacteria

Ajilogba

Olanrewaju

2022

Front. Plant Sci.

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With the rise in the world population, environmental hazards caused by chemical fertilizers, and a decrease in food supply due to global climate change, food security has become very pertinent. In addition, considerable parts of agriculture lands have been lost to urbanization. It has therefore been projected that at the present rate of population increase coupled with the other mentioned factors, available food will not be enough to feed the world. Hence, drastic approach is needed to improve agriculture output as well as human sustainability. Application of environmentally sustainable approach, such as the use of beneficial microbes, and improved breeding of underutilized legumes are one of the proposed sustainable ways of achieving food security. Microbiome-assisted breeding in underutilized legumes is an untapped area with great capabilities to improve food security. Furthermore, revolution in genomics adaptation to crop improvement has changed the approach from conventional breeding to more advanced genomic-assisted breeding on the host plant and its microbiome. The use of rhizobacteria is very important to improving crop yield, especially rhizobacteria from legumes like Bambara groundnut (BGN). BGN is an important legume in sub-Saharan Africa with high ability to tolerate drought and thrive well in marginalized soils. BGN and its interaction with various rhizobacteria in the soil could play a vital role in crop production and protection. This review focus on the importance of genomics application to BGN and its microbiome with the view of setting a potential blueprint for improved BGN breeding through integration of beneficial bacteria.

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GGE Biplot Analysis of Genotype × Environment Interaction and Yield Stability in Bambara Groundnut

Cited by 38 publications

References 48 publications

Genetic Diversity and Environmental Influence on Growth and Yield Parameters of Bambara Groundnut

Genetic Diversity and Environmental Influence on Growth and Yield Parameters of Bambara Groundnut

Plant Growth Stage Drives the Temporal and Spatial Dynamics of the Bacterial Microbiome in the Rhizosphere of Vigna subterranea

Improving Bambara Groundnut Production: Insight Into the Role of Omics and Beneficial Bacteria

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