scholarly journals Mineral concentrations in the embryo and seed coat of common bean cultivars

2012 ◽  
Vol 26 (1-2) ◽  
pp. 89-95 ◽  
Author(s):  
Nerinéia Dalfollo Ribeiro ◽  
Sandra Maria Maziero ◽  
Marina Prigol ◽  
Cristina Wayne Nogueira ◽  
Daniele Piano Rosa ◽  
...  
Keyword(s):  
Common Bean ◽  
Seed Coat ◽  
Mineral Concentrations

scholarly journals TECHNOLOGICAL-NUTRITIONAL QUALITY TRAITS AND RELATIONSHIP TO BIOACTIVE COMPOUNDS IN MESOAMERICAN AND ANDEAN BEANS

2021 ◽  
Vol 34 (2) ◽  
pp. 266-275
Author(s):  
NERINÉIA DALFOLLO RIBEIRO ◽  
GREICE ROSANA KLÄSENER ◽  
HENRIQUE CALETTI MEZZOMO ◽  
SKARLET DE MARCO STECKLING
Keyword(s):  
Common Bean ◽  
Bioactive Compounds ◽  
Seed Coat ◽  
Coat Color ◽  
Nutritional Composition ◽  
Quality Traits ◽  
Seed Coat Color ◽  
Technological Quality ◽  
Mineral Concentrations ◽  
Potassium Magnesium

ABSTRACT The common bean exhibits wide genetic variability for technological quality traits, mineral concentrations, and bioactive compounds. For this reason, investigating the correlations between those traits in common bean lines of different gene pools contributes to the progress of biofortification programs. In the present study, two recombinant inbred line populations of Mesoamerican and Andean common bean were evaluated at the F5:7 generation. Technological quality was evaluated based on mass of 100 grains and seed coat color, which was determined using a colorimeter that analyzed the L* (white to black), a* (green to red) and b* (blue to yellow) values. The concentration of six minerals and bioactive compounds (phytates and phenolic compounds) was evaluated and used to characterize the nutritional composition of the lines. The evaluated common bean lines differed (p ≤ 0.05) for all technological quality traits, mineral concentrations, and bioactive compounds, except for the zinc concentration in Andean beans. Seed coat color (L*, a*, and b* values) was highly correlated with most of the evaluated minerals and with the phytates in Mesoamerican beans. In Andean beans, seed coat color (L*, a*, and b* values) was correlated with the concentrations of potassium, magnesium, iron, and phenolic compounds. The nutritional composition of common bean lines of different classes is variable: black beans have higher concentrations of potassium, phosphorus, calcium, zinc, and phytates; carioca beans stand out with high magnesium concentration; and cranberry beans have higher concentrations of potassium, magnesium, and iron.

Genetic Control of Seed Coat Darkening in Common Bean Cultivars from Three Market Classes

Crop Science ◽  
2019 ◽  
Vol 59 (5) ◽  
pp. 2046-2054
Author(s):  
Ludivina L. Rodrigues ◽  
Luana A. Rodrigues ◽  
Thiago L. P. O. Souza ◽  
Leonardo C. Melo ◽  
Helton S. Pereira
Keyword(s):  
Common Bean ◽  
Genetic Control ◽  
Seed Coat

scholarly journals Natural Variation for Seed Physical, Biochemical and Culinary traits in Common bean (Phaseolus vulgaris L.)

2015 ◽  
Vol 6 ◽  
Author(s):  
Iram Saba, ◽  
Parvaze A. Sofi, ◽  
Kandoliya* U. K. ◽  
Baba Z.A
Keyword(s):  
Water Absorption ◽  
Common Bean ◽  
Protein Content ◽  
Phytic Acid ◽  
Seed Coat ◽  
Seed Weight ◽  
Cooking Time ◽  
Time Score ◽  
Swelling Coefficient ◽  
Absorption Percentage

<p>Twenty genotypes of common bean including 17 breeding lines were evaluated for various seed physical, nutritional and culinary traits viz., seed colour, seed shape, seed brilliance, seed coat pattern, seed length, seed breadth and seed weight, traits protein content, phytic acid, raffinose, water absorption percentage, coat percentage, swelling and hydration coefficient as well as cooking score. Most of the genotypes were kidney shaped with plain seed coat and medium seed brilliance. Among biochemical traits, highest protein content was recorded for  Arka Anoop (22.15 %) followed by WB-341 (21.45 %), WB-216 (21.16 %) and WB-249 (20.99).  Low phytic acid was recorded in WB-970 (0.440 %), WB-258 (0.968 %) and WB-102 (1.068 %).  Low values for raffinose was recorded for WB-102 (3.800 mg/g) followed by WB-482 (3.833 mg/g). Highest water absorption percentage was recorded for WB-249 (136.363), Arka Anoop (131.818) and SFB-1 (126.923). The swelling coefficient was highest in case of WB-642 (300.000), WB-249 (266.667) and WB-335 (250.000) whereas lowest values for swelling coefficient were recorded in case of WB-341 (114.285), WB-216 (145.454) and WB-1006 (124.554). Among correlations between various seed physical, biochemical and culinary traits, raffinose was positively and significantly correlated with phytic acid. Phytic acid was also significantly and positively correlated with protein, coat proportion and 100-seed weight. Coat proportion was negatively correlated water absorption percentage, swelling coefficient, hydration coefficient as well as cooking time score. Cooking time score was positively correlated with hydration and swelling coefficients as well as seed weight but negatively correlated with coat proportion. </p>

scholarly journals The genetics and physiology of seed dormancy, a crucial trait in common bean domestication

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ali Soltani ◽  
Katelynn A. Walter ◽  
Andrew T. Wiersma ◽  
James P. Santiago ◽  
Michelle Quiqley ◽  
...  
Keyword(s):  
Common Bean ◽  
Candidate Genes ◽  
Seed Dormancy ◽  
Water Uptake ◽  
Seed Coat ◽  
Physiological Mechanism ◽  
Causative Mutation ◽  
Integrative Approach ◽  
Functional Allele ◽  
Pectin Acetylesterase

Abstract Background Physical seed dormancy is an important trait in legume domestication. Although seed dormancy is beneficial in wild ecosystems, it is generally considered to be an undesirable trait in crops due to reduction in yield and / or quality. The physiological mechanism and underlying genetic factor(s) of seed dormancy is largely unknown in several legume species. Here we employed an integrative approach to understand the mechanisms controlling physical seed dormancy in common bean (Phaseolus vulgaris L.). Results Using an innovative CT scan imaging system, we were able to track water movements inside the seed coat. We found that water uptake initiates from the bean seed lens. Using a scanning electron microscopy (SEM) we further identified several micro-cracks on the lens surface of non-dormant bean genotypes. Bulked segregant analysis (BSA) was conducted on a bi-parental RIL (recombinant inbred line) population, segregating for seed dormancy. This analysis revealed that the seed water uptake is associated with a single major QTL on Pv03. The QTL region was fine-mapped to a 118 Kb interval possessing 11 genes. Coding sequence analysis of candidate genes revealed a 5-bp insertion in an ortholog of pectin acetylesterase 8 that causes a frame shift, loss-of-function mutation in non-dormant genotype. Gene expression analysis of the candidate genes in the seed coat of contrasting genotypes indicated 21-fold lower expression of pectin acetylesterase 8 in non-dormant genotype. An analysis of mutational polymorphism was conducted among wild and domesticated beans. Although all the wild beans possessed the functional allele of pectin acetylesterase 8, the majority (77%) of domesticated beans had the non-functional allele suggesting that this variant was under strong selection pressure through domestication. Conclusions In this study, we identified the physiological mechanism of physical seed dormancy and have identified a candidate allele causing variation in this trait. Our findings suggest that a 5-bp insertion in an ortholog of pectin acetylesterase 8 is likely a major causative mutation underlying the loss of seed dormancy during domestication. Although the results of current study provide strong evidences for the role of pectin acetylesterase 8 in seed dormancy, further confirmations seem necessary by employing transgenic approaches.

Condensed Tannin Accumulation during Seed Coat Development in Five Common Bean Genotypes

Crop Science ◽  
2015 ◽  
Vol 55 (6) ◽  
pp. 2826-2832 ◽  
Author(s):  
Hanny T. Elsadr ◽  
M.A. Susan Marles ◽  
Gina V. Caldas ◽  
Matthew W. Blair ◽  
Kirstin E. Bett
Keyword(s):  
Common Bean ◽  
Seed Coat ◽  
Condensed Tannin

scholarly journals Antioxidant Capacity and Phytonutrient Content in the Seed Coat and Cotyledon of Common Beans (Phaseolus vulgaris L.) from Various Regions in Mexico

Antioxidants ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 5 ◽  
Author(s):  
Celia Chávez-Mendoza ◽  
Karla Hernández-Figueroa ◽  
Esteban Sánchez
Keyword(s):  
Antioxidant Capacity ◽  
Common Bean ◽  
Seed Coat ◽  
Nutritional Value ◽  
Genetic Enhancement ◽  
Bioactive Substances ◽  
Significant Difference ◽  
Hue Angle ◽  
The Common ◽  
Whole Seed

The common bean is a good source of protein and bioactive substances giving it a large antioxidant capacity. The extensive variability of bean genotypes creates the need to characterize them with regard to their nutritional value as a tool in biofortification programs. The purpose of this study was to obtain the antioxidant capacity and phytonutrient content both in the seed coat and the cotyledon of 12 common bean varieties from different regions in Mexico. In the case of the whole seed, lightness (L*), a* (red-purple) and b* (yellow-purple) color coordinates were determined, as well as the chroma and hue angle. In the case of the seed coat and the cotyledon, the protein content, the phytonutrient content and the antioxidant capacity (2,2-diphenyl-1-picrylhydrazyl (DPPH)) were evaluated. A significant difference was observed (p ≤ 0.05) among bean varieties and between seed coat and cotyledon in all variables evaluated. Cotyledon showed a higher content of protein, H, Ni, Zn, Cu, N, P, K S and Mn, while the seed coat showed a higher content of Fe, Ca and Mg and a greater antioxidant capacity (59.99%). The Higuera Azufrado bean variety stood out as having a higher content of N, S and protein. We have concluded that the nutritional characterization performed on Mexican bean varieties represents a valuable tool for genetic enhancement programs and crop biofortification strategies.

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