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Article

Genetic Variability of Mineral Content in Different Grain Structures of Bean Cultivars from Mesoamerican and Andean Gene Pools

1
Agronomy Department, State University of Maringá, Maringá 87020-900, Brazil
2
Agronomy Department, State University of Londrina, Londrina 86057-970, Brazil
3
Plant Breeding and Propagation Area, Paraná Rural Development Institute-IAPAR-EMATER, Londrina 86047-902, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Nacer Bellaloui
Plants 2021, 10(6), 1246; https://doi.org/10.3390/plants10061246
Received: 16 April 2021 / Revised: 1 May 2021 / Accepted: 5 May 2021 / Published: 19 June 2021
Beans (Phaseolus vulgaris L.) are an important source of proteins, carbohydrates, and micronutrients in the diets of millions of people in Latin America and Africa. Studies related to genetic variability in the accumulation and distribution of nutrients are valuable for biofortification programs, as there is evidence that the seed coat and embryo differ in the bioavailability of essential nutrients. In this study, we sought to evaluate the genetic variability of total mineral content in the grain and its constituent parts (seed coat, cotyledon, and embryonic axis) of bean genotypes from Mesoamerican and Andean centers of origin. Grain samples of 10 bean cultivars were analyzed for the content of proteins and minerals (Mg, Ca, K, P, Mn, S, Cu, B, Fe, and Zn) in the whole grains and seed coat, cotyledons, and embryonic axis tissues. Genetic variability was observed among the cultivars for protein content and all evaluated minerals. Moreover, differential accumulation of minerals was observed in the seed coat, cotyledons, and embryonic axis. Except for Ca, which accumulated predominantly in the seed coat, higher percentages of minerals were detected in the cotyledons. Furthermore, 100-grain mass values showed negative correlations with the contents of Ca, Mg, P, Zn, Fe, and Mn in whole grains or in the different grain tissues. In general, the Mesoamerican cultivars showed a higher concentration of minerals in the grains, whereas Andean cultivars showed higher concentrations of protein. View Full-Text
Keywords: Phaseolus vulgaris L.; biofortification; macronutrient; micronutrient; protein Phaseolus vulgaris L.; biofortification; macronutrient; micronutrient; protein
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MDPI and ACS Style

Zeffa, D.M.; Nogueira, A.F.; Buratto, J.S.; Oliveira, R.B.R.d.; Neto, J.d.S.; Moda-Cirino, V. Genetic Variability of Mineral Content in Different Grain Structures of Bean Cultivars from Mesoamerican and Andean Gene Pools. Plants 2021, 10, 1246. https://doi.org/10.3390/plants10061246

AMA Style

Zeffa DM, Nogueira AF, Buratto JS, Oliveira RBRd, Neto JdS, Moda-Cirino V. Genetic Variability of Mineral Content in Different Grain Structures of Bean Cultivars from Mesoamerican and Andean Gene Pools. Plants. 2021; 10(6):1246. https://doi.org/10.3390/plants10061246

Chicago/Turabian Style

Zeffa, Douglas M., Alison F. Nogueira, Juliana S. Buratto, Raquel B.R.d. Oliveira, José d.S. Neto, and Vânia Moda-Cirino. 2021. "Genetic Variability of Mineral Content in Different Grain Structures of Bean Cultivars from Mesoamerican and Andean Gene Pools" Plants 10, no. 6: 1246. https://doi.org/10.3390/plants10061246

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