Screening of worldwide cowpea collection to drought tolerant at a germination stage

Carvalho, Márcia; Matos, Manuela; Castro, Isaura; Monteiro, Eliana; Rosa, Eduardo; Lino-Neto, Teresa; Carnide, V.

doi:10.1016/j.scienta.2018.11.082

Cited by 26 publications

(18 citation statements)

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“…A total of 29 cowpea genotypes were selected based on previous research [13,19], including one drought susceptible and one drought tolerant genotype, Bambey21 and IT93K-503-1, respectively. The genotypes were originated from worldwide countries with a particular focus on Iberian Peninsula genotypes (8 from Portugal and 8 from Spain) (Table 1).…”

Section: Plant Materials and Experimental Designmentioning

confidence: 99%

“…The ways by which plants cope with drought stress are displayed as a complex expression of mechanisms and factors, thereby the screening for drought tolerant genotypes is still a difficult task [12]. A set of different drought tolerance parameters has been used to perform screenings in cowpea genotypes [13][14][15][16]. Shoot biomass variations under different drought conditions show correlation with the plants' water status, in which small shoot biomass leads to less water consumption, conferring higher drought tolerance [15].…”

Section: Introductionmentioning

confidence: 99%

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Root and Agro-Morphological Traits Performance in Cowpea under Drought Stress

et al. 2020

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Drought is responsible for major yield losses in many worldwide crops and is expected to occur more frequently due to climate change. Cowpea, one of the most drought tolerant legumes, stands as a promising crop in the future climatic context. The screening for genotypes well adapted to this constraint is an essential step to improve cowpea production. A collection of 29 cowpea genotypes (Vigna unguiculata L. Walp.) from the Iberian Peninsula and 11 other countries from worldwide regions was grown and submitted to drought stress using pipes with 30 cm (control) and 90 cm (stress) of height in which water was supplied through the bottom. A set of root and agro-morphological parameters were evaluated, including shoot and root dry weight, root:shoot ratio and stem greenness. Overall, results show that under drought stress, plants seem to invest in root development and reduce shoot biomass. Higher root dry weight under drought conditions could be related to a higher drought tolerance in cowpea. Based on the evaluated traits, it was possible to identify genotypes, particularly C47 (Iran), C56 and C11 (Portugal), which might represent promising cowpea genetic resources for improved drought tolerance breeding.

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Section: Plant Materials and Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Root and Agro-Morphological Traits Performance in Cowpea under Drought Stress

et al. 2020

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“…Exploring natural variations in germination-related traits under drought stress will offer the chance to select stress-tolerant genotypes. Polyethylene glycol (PEG) has been frequently used to artificially induce drought stress in various legumes like mungbean [36][37][38], urdbean [39,40], cowpea [41], pigeon pea [42] and soybean [43]. PEG has a high molecular weight, preventing water from penetrating the cell wall [44].…”

Section: Morpho-physiological Trait Variations For Improving Drought Tolerancementioning

confidence: 99%

Improving Drought Tolerance in Mungbean (Vigna radiata L. Wilczek): Morpho-Physiological, Biochemical and Molecular Perspectives

Singh

Tiwari³

et al. 2021

Agronomy

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Drought stress is considered a severe threat to crop production. It adversely affects the morpho-physiological, biochemical and molecular functions of the plants, especially in short duration crops like mungbean. In the past few decades, significant progress has been made towards enhancing climate resilience in legumes through classical and next-generation breeding coupled with omics approaches. Various defence mechanisms have been reported as key players in crop adaptation to drought stress. Many researchers have identified potential donors, QTLs/genes and candidate genes associated to drought tolerance-related traits. However, cloning and exploitation of these loci/gene(s) in breeding programmes are still limited. To bridge the gap between theoretical research and practical breeding, we need to reveal the omics-assisted genetic variations associated with drought tolerance in mungbean to tackle this stress. Furthermore, the use of wild relatives in breeding programmes for drought tolerance is also limited and needs to be focused. Even after six years of decoding the whole genome sequence of mungbean, the genome-wide characterization and expression of various gene families and transcriptional factors are still lacking. Due to the complex nature of drought tolerance, it also requires integrating high throughput multi-omics approaches to increase breeding efficiency and genomic selection for rapid genetic gains to develop drought-tolerant mungbean cultivars. This review highlights the impact of drought stress on mungbean and mitigation strategies for breeding high-yielding drought-tolerant mungbean varieties through classical and modern omics technologies.

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“…In addition to its nutritional properties, the other hallmark of cowpea is its adaptability to drier regions, where many legumes normally do not perform well; in fact, cowpea is one of the most drought-resistant crops in regions without irrigation and irregular rainfall in Sub-Saharan Africa and parts of Asia (Singh et al, 1997;Akpalu et al, 2014). The crop is reported to be tolerant to drought even at the germination stage-a critical stage for successful plant establishment (Ravelombola et al, 2017;Carvalho et al, 2019). As a result, cowpea will become increasingly important and desirable in diets around the world, with anthropocentric demands and needs for protein sources concurrently increasing with climate change, and the stresses associated with it such as drought (Carvalho et al, 2019).…”

Section: African Oil Palm (Elaeis Guineensis)mentioning

confidence: 99%

“…The crop is reported to be tolerant to drought even at the germination stage-a critical stage for successful plant establishment (Ravelombola et al, 2017;Carvalho et al, 2019). As a result, cowpea will become increasingly important and desirable in diets around the world, with anthropocentric demands and needs for protein sources concurrently increasing with climate change, and the stresses associated with it such as drought (Carvalho et al, 2019).…”

Section: African Oil Palm (Elaeis Guineensis)mentioning

confidence: 99%

Contributions of African Crops to American Culture and Beyond: The Slave Trade and Other Journeys of Resilient Peoples and Crops

Sousa

Raizada

2020

Front. Sustain. Food Syst.

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There is a general unawareness of food crops indigenous to the African continent that have contributed to Western culture. This under-appreciation is particularly relevant in the current context of societal movements to end historic racism and value the contributions of peoples of African origin and African skin colors. Lack of awareness of the contributions of Africa's crops has negative practical consequences, including inadequate investments in preserving and maximizing the use of crop diversity to facilitate breeding. This paper provides an overview and analysis of African crops that have made significant contributions to the United States and globally, and/or hold potential in the twenty-first century. The paper specifically discusses watermelon, coffee, kola, rooibos, oil palm, shea, cowpea/black eyed pea, leafy greens, okra, yam, sorghum, pearl millet, finger millet, teff, and fonio. The review focuses on the intersection of these crops with racialized peoples, with a particular focus on African-Americans starting with slavery. The analysis includes the sites of domestication of African crops, their historical migration out of Africa, their sociocultural contributions to cuisines and products around the world, their uses today, and the indigenous knowledge associated with traditional cultivation and landrace selection. The untapped potential of local genetic resources and indigenous agronomic strategies are also described. The review demonstrates that African crops played an important role in the development of American cuisine, beverages and household products. Many of these crops are nutritious, high value and stress tolerant. The paper concludes that African crops hold significant promise in improving the resiliency of global food production systems, to mitigate climate change and alleviate food insecurity and rural poverty, especially in dry regions of the world. It is hoped that this review contributes to teaching the next generation of agriculturalists, food scientists and international development professionals about the valuable contributions of Africa's resilient crops and peoples.

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Screening of worldwide cowpea collection to drought tolerant at a germination stage

Cited by 26 publications

References 45 publications

Root and Agro-Morphological Traits Performance in Cowpea under Drought Stress

Root and Agro-Morphological Traits Performance in Cowpea under Drought Stress

Improving Drought Tolerance in Mungbean (Vigna radiata L. Wilczek): Morpho-Physiological, Biochemical and Molecular Perspectives

Contributions of African Crops to American Culture and Beyond: The Slave Trade and Other Journeys of Resilient Peoples and Crops

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