Genomics-Enabled Breeding for Enhancing Micronutrients in Crops

Soren, Khela Ram; Shanmugavadivel, P. S.; Gangwar, Priyanka; Singh, Pallavi; Das, Arpita; Singh, Narendra Pratap

doi:10.1007/978-81-322-2716-8_10

Cited by 5 publications

(6 citation statements)

References 51 publications

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“…For more information on the gene pools of common beans, seeDebouck (1999) and CWR (2019).3 SeeSoren et al (2016) for a summary of biofortification work on common beans.…”

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confidence: 99%

The contribution of the CIAT genebank to the development of iron-biofortified bean varieties and well-being of farm households in Rwanda

et al. 2020

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Genebanks play an essential role in a world where agricultural biodiversity has been lost from farming habitats, malnutrition persists as global population continues to rise, and farm productivity is vulnerable to climate change. We demonstrate the importance of the genebank of the International Center for Tropical Agriculture (CIAT) to the development of seven ironbiofortified varieties of climbing bean and the impact of their adoption on farm households in Rwanda. First, we link ironbiofortified varieties of climbing beans directly to the genebank through pedigree analysis and key informant interviews with the breeders who developed them. Second, we apply various econometric models to test the impact of adoption on yield, consumption, and purchase of beans by farming households in Rwanda, building upon previous research on bush beans. We based the analysis on a dataset of nearly 1400 households, collected in 2015 by HarvestPlus. We found that the scope of the genetic diversity housed in the bean collection at CIAT was fundamental to developing successful iron-biofortified beans. We found significant positive effects of climbing varieties on yields; however, we did not find significant effects on the amounts of beans consumed by households or bean purchases. Our results suggest that it is possible to trace the journey of an accession from its introduction in the genebank to its final use by farmers and consumers. Positive effects on yield generate incentives for adoption of iron-biofortified bean varieties, potentially boosting micronutrient consumption. Further research is needed to understand the factors affecting the adoption and impacts of climbing bean varieties.

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“…For more information on the gene pools of common beans, seeDebouck (1999) and CWR (2019).3 SeeSoren et al (2016) for a summary of biofortification work on common beans.…”

mentioning

confidence: 99%

The contribution of the CIAT genebank to the development of iron-biofortified bean varieties and well-being of farm households in Rwanda

et al. 2020

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“…Although, this marker system requires small amount of DNA template, it cannot be used directly in marker-assisted selection because its implementation is time-consuming and expensive. However, using MFLP for fingerprinting is advantageous as many MFLP polymorphisms could easily be converted into simple PCR based markers desirable for routine marker implementation in marker-assisted selection (BOERSMA et al, 2007a;SADEGHZADEH et al, 2010;SOREN et al, 2016;YANG et al, 2004). MFLP identifies, theoretically, four types of polymorphisms: (i) microsatellite polymorphisms arising from variation in the number of repeat units within SSRs targeted by the SSR-anchor primers, which are co-dominant; (ii) polymorphisms originating from the annealing sites variation for the SSR-anchor primer, which are dominant; (iii) polymorphisms resulting from insertions/deletions outside the SSR region within the SSR-MseI fragments, which are co-dominant; and (iv) polymorphisms arising from variation in restriction sites.…”

Section: Resultsmentioning

confidence: 99%

“…Screening for Zn-dense seed is one of the objectives in many breeding programs (SARDAR et al, 2015;SOREN et al, 2016). However, progress in developing mineral-dense seed has mainly relied upon conventional plant breeding approaches (BOUIS, 2007;CAKMAK, 2002;GHANDILYAN et al, 2006;POLETTI et al, 2004;WELCH and GRAHAM, 2004), a process which is labour-intensive and time-consuming.…”

Section: Introductionmentioning

confidence: 99%

Identification of MFLP fingerprint for higher seed zinc accumulation in barley DH population

2017

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Selection through molecular markers for seed Zn accumulation might be an efficient complementary breeding tool in barley breeding. To develop a specific molecular markers, 150 DH lines derived from a cross between Clipper (low-Zn-accumulator) and Sahara-3771 (high-Zn-accumulator) were screened under field and glasshouse conditions. Microsatellite-anchored fragment length polymorphism (MFLP) fingerprint generated by SSR-anchor primer MF128 in combination with AFLP primer MseI-AGA (5?-GATGAGTCCTGAGTAAAGA-3?) was identified as a candidate marker for tagging seed Zn accumulation gene. The sequencing of the band showed a marker of 369 bp with the sequence of SSR anchor primer MF128 and MseI-AGA at the two ends as expected. The MFLP marker associated with higher seed Zn accumulation has potential to be converted to a simple, sequence-specific, PCR-based, low-cost marker amenable to large populations, making it potentially viable for marker-assisted selection in barley breeding. This marker might be useful in the improvement of barley productivity and nutritional quality in Zn-deficient environments.

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“…Este cultivo, se siembra en el ciclo agrícola otoño-invierno, por sus bajos requerimientos de agua para su desarrollo y por su importancia económica, que es un generador de divisas, ya que se reporta que en un periodo de cinco años se logró obtener más de 100 millones de dólares en la venta de la producción en el mercado internacional (Manjarrez et al, 2004). En climas áridos -desérticos, el garbanzo puede desarrollar su máximo potencial genético y con un costo agronómico relativamente accesible; es una especie muy adaptada a las zonas desérticas, resistente a altas temperaturas, de bajo consumo de agua y por la radiación y minerales de los suelos, el grano es de alta calidad nutricional, por lo que se encuentra entre los principales cultivos con interés comercial de exportación (Soren et al, 2016). En este sentido, Sonora es uno de los principales estados productores de garbanzo de la variedad Kabuli, ocupando el segundo lugar después de Sinaloa, con una aportación en producción durante el año 2016 de 35,824 toneladas, lo que representa un 29.4% de la producción nacional.…”

Section: Importancia Distribución Y Producción De Garbanzo a Nivel Mu...unclassified

SISTEMAS DE FERTILIZACIÓN EN GARBANZO (Cicer arietinum L.) EN SUELOS DE ZONAS ARIDAS-DESÉRTICAS

Hernández¹,

Corral²,

Borboa‐Flores³

et al. 2021

Trop Subtrop Agroecosyst

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Background. Chickpea (Cicer arietinum L.) is an important source of human and animal food, due to its high nutritional value and, therefore, it is considered the second legume in cultivated area worldwide. Currently, the population in the world is on the rise and with it the demand for food, which leads to increasing the exploitation of agricultural fields, with a respective increase in the use of fertilizers, mainly nitrogen fertilization (urea), which It is the one that largely guarantees the highest yields and quality of the grains. Nitrogen from urea is lost through volatilization and leaching processes by more than 50% before being assimilated by the plants and, on the other hand, the risks that occur due to the losses of pollutants that are released into the environment. Objective. The objective of this research was to carry out a systematic review of the general aspects of chickpea cultivation, with special emphasis on aspects of nitrogen fertilization, mainly in those studies carried out on the development of prolonged release systems (FLP) and / or controlled. of urea, which could be used in chickpea and other crops, as a fertilization alternative to avoid nitrogen losses and, consequently, contamination to the environment. Methodology. The study was carried out in accordance with the PRISMA statement (Preferred Reporting Items for Systematic reviews and Meta-Analyzes), a systematic literature study was carried out in the global databases Science Direct, JSTOR, Springer Link, Dialnet, Google Scholar, Google Scholar, using the Boolean operator as search terms: “systems, evaluation, methodologies, released fertilization, prolonged fertilization, agricultural sustainability”. Zotero (www.zotero.org), a free access manager for bibliographic references, was used. The University of Sonora database was reviewed. Results. Various databases with information related to chickpea cultivation, its importance, distribution and world production under arid environments and its interaction with symbiotic nitrogen fixation were detected; fertilization alternatives to avoid N losses in arid zones, specifically in those with prolonged release. Implications. FLP technology in agriculture includes the prolonged delivery of nutrients (fertilizers) to the plant, increasing its efficiency and reducing the negative effects associated with overdose. This technology has the function of releasing the nutrients to the plants at a speed close to the nutrient demand of the plants, for a prolonged period. Conclusions. The studies with FLP open a new way to reduce irrational applications of nitrogen chemical fertilizers, mainly in arid zones where there are the greatest problems due to leaching, due to the characteristics of the soils. Subject of great interest, in which it continues to be deepened, with the aim of obtaining a harmonized method to determine the translocation of nutrients from the FLP to the soil solution and, taking into account the influence of existing factors.

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Genomics-Enabled Breeding for Enhancing Micronutrients in Crops

Cited by 5 publications

References 51 publications

The contribution of the CIAT genebank to the development of iron-biofortified bean varieties and well-being of farm households in Rwanda

The contribution of the CIAT genebank to the development of iron-biofortified bean varieties and well-being of farm households in Rwanda

Identification of MFLP fingerprint for higher seed zinc accumulation in barley DH population

SISTEMAS DE FERTILIZACIÓN EN GARBANZO (Cicer arietinum L.) EN SUELOS DE ZONAS ARIDAS-DESÉRTICAS

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