Cowpea (Vigna unguiculata (L.) Walp) for food security: an evaluation of end-user traits of improved varieties in Swaziland

Gondwe, Therese; Alamu, Emmanuel Oladeji; Mdziniso, Phumzile; Maziya‐Dixon, Busie

doi:10.1038/s41598-019-52360-w

Cited by 71 publications

(48 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, Gondwe et al . 55 focusing on V. unguiculata from Swaziland, found much lower contents of Ca, Fe, and Zn than the content found in our study, even for improved varieties. Content variation within the same species can be explained by several cross-related reasons: (i) the nutritional content of legumes can vary greatly and is highly dependent on soil fertility, which directly influences the supply and availability of most nutrient elements 56 ; (ii) the nutritional content is dependent and vary with different varieties and genotypes 46 , 57 ; and (iii) the nutritional content is influenced by preharvest conditions of the plant, maturity of the edible product at harvest and postharvest handling and storage conditions 58 .…”

Section: Discussioncontrasting

confidence: 95%

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Catarino

Brilhante

Essoh

et al. 2021

Sci Rep

View full text Add to dashboard Cite

In sub-Saharan Africa, grain legumes (pulses) are essential food sources and play an important role in sustainable agriculture. Among the major pulse crops, the native cowpea (Vigna unguiculata) and introduced common bean (Phaseolus vulgaris) stand out. This paper has two main goals. First, we provide a comprehensive view of the available genetic resources of these genera in Africa, including data on germplasm collections and mapping biodiversity-rich areas. Second, we investigate patterns of physicochemical and cytogenomic variation across Africa to explore the geographical structuring of variation between native and introduced beans. Our results revealed that 73 Vigna and 5 Phaseolus species occur in tropical regions of Africa, with 8 countries accounting for more than 20 native species. Conversely, germplasm collections are poorly represented when compared to the worldwide collections. Regarding the nuclear DNA content, on average, V. unguiculata presents significantly higher values than P. vulgaris. Also, V. unguiculata is enriched in B, Mg, S, and Zn, while P. vulgaris has more Fe, Ca, and Cu. Overall, our study suggests that the physicochemical and cytogenomic diversity of native Vigna species is higher than previously thought, representing valuable food resources to reduce food insecurity and hunger, particularly of people living in African developing countries.

show abstract

Section: Discussioncontrasting

confidence: 95%

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Catarino

Brilhante

Essoh

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Our results revealed that ash contents ranged from 3.2% (Vigna unguiculata) to 4.1% (Phaseolus vulgaris), indicating that they are good sources of minerals (e.g., [47,48]). Moreover, all the studied species revealed an average moisture content ranging from 10.7 ± 0.2 g/100 g in Phaseolus vulgaris to 12.4 ± 0.9 g/100 g in Phaseolus lunatus and we concluded that it is possible to store all these beans with quality, in agreement with other studies (e.g., [49]).…”

Section: Chemical Compositionmentioning

confidence: 79%

Tackling Food Insecurity in Cabo Verde Islands: The Nutritional, Agricultural and Environmental Values of the Legume Species

Brilhante

Varela

Essoh

et al. 2021

Foods

View full text Add to dashboard Cite

Legume species are important food sources to reduce hunger and deal with malnutrition; they also play a crucial role in sustainable agriculture in the tropical dry islands of Cabo Verde. To improve the knowledge of the heritage of plant genetic resources in this Middle Income Country, this study had three main goals: (i) to provide a checklist of food legumes; (ii) to investigate which species are traded in local markets and, based on field surveys, to compare species for their chemical, phenolic, antioxidant, and nutritional composition; and (iii) to discuss the agronomic value and contribution to food security in this archipelago. Our results revealed that 15 species are used as food and 5 of them are locally traded (Cajanus cajan, Lablab purpureus, Phaseolus lunatus, Phaseolus vulgaris, and Vigna unguiculata). The role of these species as sources of important minerals, antioxidants, and nutritional components for food security is highlighted, and the native ones (Lablab purpureus and Vigna unguiculata) stand-out as particularly well-adapted to the climate of these islands, which are already experiencing the adverse effects of climate change. We conclude that the sustainable use of these genetic resources can contribute to the reduction of hunger and poverty, thus meeting some challenges of the Sustainable Development Goals.

show abstract

“…Walp.) is an economically important crop legume in Africa, America and Asia [1][2][3]. This crop has five cultivar groups/subspecies including unguiculata (grain cowpea (also known as black-eye pea)), biflora, texilis, melanopthamus and sesquipedalis (yardlong bean (also known as asparagus bean)) [2,4].…”

Section: Introductionmentioning

confidence: 99%

Narrowing Down a Major QTL Region Conferring Pod Fiber Contents in Yardlong Bean (Vigna unguiculata), a Vegetable Cowpea

Watcharatpong

Kaga

Chen

et al. 2020

Genes

View full text Add to dashboard Cite

Yardlong bean (Vigna unguiculata (L.) Walp. ssp. sesquipedalis), a subgroup of cowpea, is an important vegetable legume crop of Asia where its young pods are consumed in both fresh and cooked forms. Pod fiber contents (cellulose, hemicellulose and lignin) correlates with pod tenderness (softness/hardness) and pod shattering. In a previous study using populations derived from crosses between yardlong bean and wild cowpea (V. unguiculata ssp. unguiculata var. spontanea), three major quantitative trait loci (QTLs), qCel7.1, qHem7.1 and qLig7.1, controlling these fibers were identified on linkage group 7 (cowpea chromosome 5) and are co-located with QTLs for pod tenderness and pod shattering. The objective of this study was to identify candidate gene(s) controlling the pod fiber contents. Fine mapping for qCel7.1, qHem7.1 and qLig7.1 was conducted using F2 and F2:3 populations of 309 and 334 individuals, respectively, from the same cross combination. New DNA markers were developed from cowpea reference genome sequence and used for fine mapping. A QTL analysis showed that in most cases, each pod fiber content was controlled by one major and one minor QTLs on the LG7. The major QTLs for cellulose, hemicellulose and lignin in pod were always mapped to the same regions or close to each other. In addition, a major QTL for pod shattering was also located in the region. Although there were several annotated genes relating to pod fiber contents in the region, two genes including Vigun05g266600 (VuBGLU12) encoding a beta glucosidase and Vigun05g273500 (VuMYB26b) encoding a transcription factor MYB26 were identified as candidate genes for the pod fiber contents and pod shattering. Function(s) of these genes in relation to pod wall fiber biosynthesis and pod shattering was discussed.

show abstract

Cowpea (Vigna unguiculata (L.) Walp) for food security: an evaluation of end-user traits of improved varieties in Swaziland

Cited by 71 publications

References 18 publications

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Tackling Food Insecurity in Cabo Verde Islands: The Nutritional, Agricultural and Environmental Values of the Legume Species

Narrowing Down a Major QTL Region Conferring Pod Fiber Contents in Yardlong Bean (Vigna unguiculata), a Vegetable Cowpea

Contact Info

Product

Resources

About