Mapping of AFLP loci linked to tolerance to cowpea golden mosaic virus

Rodrigues, Marciene Amorim; Santos, C. A. F.; Santana, Jose Rodriguez

doi:10.4238/2012.august.17.12

Cited by 17 publications

(3 citation statements)

References 20 publications

(32 reference statements)

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“…RILs are being established for mapping studies to identify DNA markers linked to multiple virus resistance. For instance, resistance to CGMV in crosses between IT97K-499-25 Â Canapu T16 was shown to be controlled by a single dominant gene (Rodrigues, Santos, & Santana, 2012). CABMV resistance was conditioned by a single recessive gene or more than one recessive gene (Orawu, Melis, Laing, & Derera, 2013).…”

Section: Cowpeamentioning

confidence: 98%

Tropical Food Legumes

Hema

Sreenivasulu

Patil

et al. 2014

Control of Plant Virus Diseases - Seed-Propagated Crops

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Section: Cowpeamentioning

confidence: 98%

Tropical Food Legumes

Hema

Sreenivasulu

Patil

et al. 2014

Control of Plant Virus Diseases - Seed-Propagated Crops

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“…Numerous biparental populations have been used to map major QTLs for various traits [140][141][142] and to develop consensus genetic maps of cowpea [144,145]. For example, one study [146,147] focused on using the SNP markers to map the hastate versus ovate leaf shape trait in a biparental recombinant inbred line (RIL) population. In addition, new populations have been developed for higher-resolution mapping, including eight parents and 305 lines [140].…”

Section: Molecular Breedingmentioning

confidence: 99%

Breeding of Vegetable Cowpea for Nutrition and Climate Resilience in Sub-Saharan Africa: Progress, Opportunities, and Challenges

Mekonnen

Gerrano

Mbuma

et al. 2022

Plants

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Currently, the world population is increasing, and humanity is facing food and nutritional scarcity. Climate change and variability are a major threat to global food and nutritional security, reducing crop productivity in the tropical and subtropical regions of the globe. Cowpea has the potential to make a significant contribution to global food and nutritional security. In addition, it can be part of a sustainable food system, being a genetic resource for future crop improvement, contributing to resilience and improving agricultural sustainability under climate change conditions. In malnutrition prone regions of sub-Saharan Africa (SSA) countries, cowpea has become a strategic dryland legume crop for addressing food insecurity and malnutrition. Therefore, this review aims to assess the contribution of cowpea to SSA countries as a climate-resilient crop and the existing production challenges and perspectives. Cowpea leaves and immature pods are rich in diverse nutrients, with high levels of protein, vitamins, macro and micronutrients, minerals, fiber, and carbohydrates compared to its grain. In addition, cowpea is truly a multifunctional crop for maintaining good health and for reducing non-communicable human diseases. However, as a leafy vegetable, cowpea has not been researched and promoted sufficiently because it has not been promoted as a food security crop due to its low yield potential, susceptibility to biotic and abiotic stresses, quality assurance issues, policy regulation, and cultural beliefs (it is considered a livestock feed). The development of superior cowpea as a leafy vegetable can be approached in different ways, such as conventional breeding and gene stacking, speed breeding, mutation breeding, space breeding, demand-led breeding, a pan-omics approach, and local government policies. The successful breeding of cowpea genotypes that are high-yielding with a good nutritional value as well as having resistance to biotics and tolerant to abiotic stress could also be used to address food security and malnutrition-related challenges in sub-Saharan Africa.

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“…The introgression of the maps for chromosome 11 resulted in a shorter distance because introgression was nonexistent for the locus with SNP 2_12850 and was 0.56 cM for the locus with SNP 2_54459, which was not included in the present analysis of the F2 population ( Figure 3; Table 1). The mapping of simple inheritance traits in cowpea was reported by Rodrigues, Santos, and Santana (2012), who identified three AFLP markers linked to the resistance gene for cowpea golden mosaic virus, with two markers flanking this gene. Pottorff et al (2012) mapped the resistance locus of Fusarium oxysporum (Fot3-1) race 3 to a 1.2 cM region and identified the SNP marker 1_1107 as co-segregating with Fot3-1 in cowpea.…”

Section: Map Introgressionmentioning

confidence: 99%

Genetic linkage map and mapping of the locus of biological nitrogen fixation inefficiency in cowpea

Seido

Santos

2019

Acta Sci. Agron.

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The objectives of the present study were to construct a cowpea genetic map using the F2 population resulting from the cross IC-1 x BRS Marataoã, based on single nucleotide polymorphism (SNP) markers, and to map the cpi gene, with additional reference to introgression with the consensus map of species, aiming to identify markers for assisted selection to develop more efficient cultivars for BNF. The parents and 89 F2 plants were genotyped with 51,128 SNP markers, of which 910 polymorphic markers were used to construct the map. The results revealed 11 linkage groups, with an average of 82 markers per chromosome and average distance of 1.26 cM between markers. Recombination analysis of the SNPs indicated that markers 2_12850 and 2_00188, located in linkage group 11, flanked the cpi gene at a distance of 6.7 cM and 5.64 cM, respectively. The introgression of linkage group 11 with the cowpea reference map revealed short distances (from zero to 0.6 cM) for these markers, indicating a strong association with the cpi gene. The constructed map and cpi mapping provide basic information that can assist the genetic breeding of more efficient cowpea plants for BNF by marker-assisted selection.

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Mapping of AFLP loci linked to tolerance to cowpea golden mosaic virus

Cited by 17 publications

References 20 publications

Tropical Food Legumes

Tropical Food Legumes

Breeding of Vegetable Cowpea for Nutrition and Climate Resilience in Sub-Saharan Africa: Progress, Opportunities, and Challenges

Genetic linkage map and mapping of the locus of biological nitrogen fixation inefficiency in cowpea

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