European cowpea landraces for a more sustainable agriculture system and novel foods

Carvalho, Márcia; Bebeli, Penelope J.; Pereira, Graça; Castro, Isaura; Egea‐Gilabert, Catalina; Matos, Manuela; Lazaridi, Efstathia; Duarte, Isabel Margarida; Lino-Neto, Teresa; Ntatsi, Georgia; Rodrigues, M.A.M.; Savvas, Dimitrios; Rosa, Eduardo; Carnide, V.

doi:10.1002/jsfa.8378

Cited by 17 publications

(22 citation statements)

References 33 publications

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“…Two Portuguese genotypes, a commercial variety (Cp5051) and a Northern landrace (Vg50), as well as two control genotypes with already described drought responses (Bambey 21 and CB46), were selected for this work. The two Portuguese genotypes were previously characterized using morphological and agronomical parameters (Carvalho et al, 2017a) and single nucleotide polymorphism (SNP) analysis through the Illumina Cowpea iSelect Consortium Array (Carvalho et al, 2017b). Both Portuguese genotypes were selected under different climatic conditions, being the Cp5051 selected under a hotter and dryer spring and summer (South Portugal) and Vg50 selected in a more temperate area (Northern Portugal).…”

Section: Plant Materials and Experimental Designmentioning

confidence: 99%

Evaluating stress responses in cowpea under drought stress

Carvalho

Castro

Moutinho-Pereira

et al. 2019

Journal of Plant Physiology

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A B S T R A C TDrought impact on plants is an increasing concern under the climate change scenario. Cowpea (Vigna unguiculata L. Walp.) is considered as one of the most tolerant legume crops to drought, being the search for the best welladapted genotypes crucial to face the future challenges. Different approaches have been used for differentiating plant responses to drought stress. Plants of four cowpea genotypes were submitted to three watering regimens (a severe and moderate drought stress, and well-watered control) during 15 days, and several physiological, biochemical and molecular parameters were evaluated. Stressed plants revealed commonly-described drought stress characteristics, but not all assayed parameters were useful for discriminating plants with different drought severities or genotypes. The analyses which have contributed most to genotype discrimination were those related with stomatal function, and biochemical markers such as proline and anthocyanin contents. Antioxidant enzymes activities and related genes expression did not differed among genotypes or upon drought stress treatments, suggesting that scavenging enzymes are not involved in the differential ability of cowpea plants to survive under drought stress. This information will be useful to evaluate and use genetic resources, as well as design strategies for breeding cowpea resistance to drought stress.

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Section: Plant Materials and Experimental Designmentioning

confidence: 99%

Evaluating stress responses in cowpea under drought stress

Carvalho

Castro

Moutinho-Pereira

et al. 2019

Journal of Plant Physiology

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“…In a previous study, the majority of the cowpea genotypes were already characterized using single nucleotide polymorphism (SNP) through the Illumina Cowpea iSelect Consortium Array (Carvalho et al, 2017b). Some of the Iberian Peninsula cowpea genotypes were also characterized through the morphological and agronomical parameters (Carvalho et al, 2017a). The references displayed different levels of drought tolerance: Bambey 21 (highly susceptible), CB46 (moderately susceptible) and IT93K-503-1 (highly tolerant), as described by Hamidou et al (2007) and Muchero et al (2008Muchero et al ( , 2010.…”

Section: Plant Materialsmentioning

confidence: 99%

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

Carvalho

Matos

Castro

et al. 2019

Scientia Horticulturae

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Global warming has an increasing impact on the availability of water for agriculture. Crops tolerant to high temperatures and drought, such as cowpea (Vigna unguiculata L. Walp.), have an added value in the near future. The main objective of this study was to evaluate the effect of drought on seed germination and seedling emergence of cowpea genotypes, in order to screen the most tolerant genotypes. Seeds from 58 cowpea genotypes all over the world were submitted to two stress conditions, induced by PEG-6000 (corresponding to osmotic potentials of −0.75 bars and −1.5 bars). Germination and seedling growth parameters, vigor index and proline content were determined to assess drought tolerance. The results revealed significant differences of all parameters among genotypes after treatments and interaction of both. Water stress caused a general decrease in germination and seedling growth, while an increase in proline content was observed. A high variation of drought responses were detected among genotypes, being possible to select seven genotypes (C11, C18, C44, C46, C47, C50 and C54) as tolerant to drought at germination stage. These results will be useful to select the best suitable parents for insertion in future breeding programs.

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“…Moreover, the variability present in 23 cowpea landraces collected from Greek fields revealed potential germplasm for drought tolerance ( Lazaridi et al, 2016 ). Cowpea is considered a legume tolerant to heat, drought and poor soils due to its capacity to fix nitrogen even under stress conditions ( Carvalho et al, 2017a ; Lazaridi et al, 2017 ). However, the diversity available for stress tolerance in southern Europe has neither been deeply studied nor used in breeding programs for stress tolerance.…”

Section: Eco-physiological Adaptive Traits Of Bean and Cowpea In The mentioning

confidence: 99%

Warm Season Grain Legume Landraces From the South of Europe for Germplasm Conservation and Genetic Improvement

et al. 2018

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Currently, there is a high concern from consumers regarding food quality, with emphasis on the origin of food sources. We here review the current situation of beans (Phaseolus spp.) and cowpea (Vigna unguiculata (L.) Walp.) landraces in the South of Europe focusing on morpho-agronomic and genetic diversity and physiological adaptation to the different agrosystems, including the symbiotic association with rhizobia. Despite the reduction in the production and consumption of grain legumes in Southern Europe, the variability of common bean, runner bean and cowpea landraces in this region is adequately preserved ex situ in germplasm banks and in breeder collections in Portugal, Spain, Italy and Greece; however, on-farm (in situ) conservation in isolated areas mainly in gardens and small fields for farmers own consumption and local markets is not guaranteed. This variability can be used for the genetic improvement of varieties, which will result in environmental-friendly improved legumes for a sustainable production in the South of Europe as well as in other regions of the World.

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European cowpea landraces for a more sustainable agriculture system and novel foods

Abstract: The results show that sufficient variation exists in different traits within landraces in the studied cowpea germplasm to pursue a breeding program. However, the quantitative traits showed a higher genotype × environment component. © 2017 Society of Chemical Industry.

Cited by 17 publications

References 33 publications

Evaluating stress responses in cowpea under drought stress

Evaluating stress responses in cowpea under drought stress

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

Warm Season Grain Legume Landraces From the South of Europe for Germplasm Conservation and Genetic Improvement

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