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Balarynová J, Klčová B, Sekaninová J, Kobrlová L, Cechová MZ, Krejčí P, Leonova T, Gorbach D, Ihling C, Smržová L, Trněný O, Frolov A, Bednář P, Smýkal P. The loss of polyphenol oxidase function is associated with hilum pigmentation and has been selected during pea domestication. THE NEW PHYTOLOGIST 2022; 235:1807-1821. [PMID: 35585778 DOI: 10.1111/nph.18256] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
Seed coats serve as protective tissue to the enclosed embryo. As well as mechanical there are also chemical defence functions. During domestication, the property of the seed coat was altered including the removal of the seed dormancy. We used a range of genetic, transcriptomic, proteomic and metabolomic approaches to determine the function of the pea seed polyphenol oxidase (PPO) gene. Sequencing analysis revealed one nucleotide insertion or deletion in the PPO gene, with the functional PPO allele found in all wild pea samples, while most cultivated peas have one of the three nonfunctional ppo alleles. PPO functionality cosegregates with hilum pigmentation. PPO gene and protein expression, as well as enzymatic activity, was downregulated in the seed coats of cultivated peas. The functionality of the PPO gene relates to the oxidation and polymerisation of gallocatechin in the seed coat. Additionally, imaging mass spectrometry supports the hypothesis that hilum pigmentation is conditioned by the presence of both phenolic precursors and sufficient PPO activity. Taken together these results indicate that the nonfunctional polyphenol oxidase gene has been selected during pea domestication, possibly due to better seed palatability or seed coat visual appearance.
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Affiliation(s)
- Jana Balarynová
- Department of Botany, Faculty of Sciences, Palacky University, Olomouc, 783 71, Czech Republic
| | - Barbora Klčová
- Department of Botany, Faculty of Sciences, Palacky University, Olomouc, 783 71, Czech Republic
| | - Jana Sekaninová
- Department of Biochemistry, Faculty of Sciences, Palacky University, Olomouc, 783 71, Czech Republic
| | - Lucie Kobrlová
- Department of Botany, Faculty of Sciences, Palacky University, Olomouc, 783 71, Czech Republic
| | - Monika Zajacová Cechová
- Department of Analytical Chemistry, Faculty of Sciences, Palacky University, Olomouc, 771 46, Czech Republic
| | - Petra Krejčí
- Department of Analytical Chemistry, Faculty of Sciences, Palacky University, Olomouc, 771 46, Czech Republic
| | - Tatiana Leonova
- Department of Bioorganic Chemistry, Leibniz-Institut für Pflanzenbiochemie, Halle (Saale), 06120, Germany
- Department of Biochemistry, St Petersburg State University, St Petersburg, 199004, Russia
| | - Daria Gorbach
- Department of Biochemistry, St Petersburg State University, St Petersburg, 199004, Russia
| | - Christian Ihling
- Department of Pharmaceutical Chemistry and Bioanalytics, Institute of Pharmacy, Martin-Luther University, Halle-Wittenberg, 06120, Germany
| | - Lucie Smržová
- Department of Botany, Faculty of Sciences, Palacky University, Olomouc, 783 71, Czech Republic
| | - Oldřich Trněný
- Agricultural Research Ltd, Troubsko, 664 41, Czech Republic
| | - Andrej Frolov
- Department of Bioorganic Chemistry, Leibniz-Institut für Pflanzenbiochemie, Halle (Saale), 06120, Germany
- Department of Biochemistry, St Petersburg State University, St Petersburg, 199004, Russia
| | - Petr Bednář
- Department of Analytical Chemistry, Faculty of Sciences, Palacky University, Olomouc, 771 46, Czech Republic
| | - Petr Smýkal
- Department of Botany, Faculty of Sciences, Palacky University, Olomouc, 783 71, Czech Republic
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Zhong J, Cheng J, Cui J, Hu F, Dong J, Liu J, Zou Y, Hu K. MC03g0810, an Important Candidate Gene Controlling Black Seed Coat Color in Bitter Gourd ( Momordica spp.). FRONTIERS IN PLANT SCIENCE 2022; 13:875631. [PMID: 35574132 PMCID: PMC9094142 DOI: 10.3389/fpls.2022.875631] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/25/2022] [Indexed: 06/01/2023]
Abstract
Seed coat color is one of the most intuitive phenotypes in bitter gourd (Momordica spp.). Although the inheritance of the seed coat color has been reported, the gene responsible for it is still unknown. This study used two sets of parents, representing, respectively, the intersubspecific and intraspecific materials of bitter gourd, and their respective F1 and F2 progenies for genetic analysis and primary mapping of the seed coat color. A large F2:3 population comprising 2,975 seedlings from intraspecific hybridization was used to fine-map the seed coat color gene. The results inferred that a single gene, named McSC1, controlled the seed coat color and that the black color was dominant over the yellow color. The McSC1 locus was mapped to a region with a physical length of ∼7.8 Mb and 42.7 kb on pseudochromosome 3 via bulked segregant analysis with whole-genome resequencing (BSA-seq) and linkage analysis, respectively. Subsequently, the McSC1 locus was further fine-mapped to a 13.2-kb region containing only one candidate gene, MC03g0810, encoding a polyphenol oxidase (PPO). Additionally, the variations of MC03g0810 in the 89 bitter gourd germplasms showed a complete correlation with the seed coat color. Expression and PPO activity analyses showed a positive correlation between the expression level of MC03g0810 and its product PPO and the seed coat color. Therefore, MC03g0810 was proposed as the causal gene of McSC1. Our results provide an important reference for molecular marker-assisted breeding based on the seed coat color and uncover molecular mechanisms of the seed coat color formation in bitter gourd.
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Affiliation(s)
- Jian Zhong
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Guangdong Vegetables Engineering Research Center, Guangzhou, China
| | - Jiaowen Cheng
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Guangdong Vegetables Engineering Research Center, Guangzhou, China
| | - Junjie Cui
- Department of Horticulture, Foshan University, Foshan, China
| | - Fang Hu
- Henry Fok School of Biology and Agricultural, Shaoguan University, Shaoguan, China
| | - Jichi Dong
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Guangdong Vegetables Engineering Research Center, Guangzhou, China
| | - Jia Liu
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Guangdong Vegetables Engineering Research Center, Guangzhou, China
| | - Yichao Zou
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Guangdong Vegetables Engineering Research Center, Guangzhou, China
| | - Kailin Hu
- College of Horticulture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangzhou, China
- Guangdong Vegetables Engineering Research Center, Guangzhou, China
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Sadohara R, Long Y, Izquierdo P, Urrea CA, Morris D, Cichy K. Seed coat color genetics and genotype × environment effects in yellow beans via machine-learning and genome-wide association. THE PLANT GENOME 2022; 15:e20173. [PMID: 34817119 DOI: 10.1002/tpg2.20173] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Common bean (Phaseolus vulgaris L.) is consumed worldwide, with strong regional preferences for seed appearance characteristics. Colors of the seed coat, hilum ring, and corona are all important, along with susceptibility to postharvest darkening, which decreases seed value. This study aimed to characterize a collection of 295 yellow bean genotypes for seed appearance and postharvest darkening, evaluate genotype × environment (G × E) effects and map those traits via genome-wide association analysis. Yellow bean germplasm were grown for 2 yr in Michigan and Nebraska and seed were evaluated for L*a*b* color values, postharvest darkening, and hilum ring and corona colors. A model to exclude the hilum ring and corona of the seeds, black background, and light reflection was developed by using machine learning, allowing for targeted and efficient L*a*b* value extraction from the seed coat. The G × E effects were significant for the color values, and Michigan-grown seeds were darker than Nebraska-grown seeds. Single-nucleotide polymorphisms (SNPs) were associated with L* and hilum ring color on Pv10 near the J gene involved in mature seed coat color and hilum ring color. A SNP on Pv07 associated with L*, a*, postharvest darkening, and hilum ring and corona colors was near the P gene, the ground factor gene for seed coat color expression. The machine-learning-aided model used to extract color values from the seed coat, the wide variability in seed morphology traits, and the associated SNPs provide tools for future breeding and research efforts to meet consumers' expectations for bean seed appearance.
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Affiliation(s)
- Rie Sadohara
- Dep. of Plant, Soil and Microbial Sciences, Michigan State Univ., 1066 Bogue St., East Lansing, MI, 48824, USA
| | - Yunfei Long
- Dep. of Electrical and Computer Engineering, Michigan State Univ., 428 S Shaw Ln., East Lansing, MI, 48824, USA
| | - Paulo Izquierdo
- Dep. of Plant, Soil and Microbial Sciences, Michigan State Univ., 1066 Bogue St., East Lansing, MI, 48824, USA
| | - Carlos A Urrea
- Panhandle Research & Extension Center, Univ. of Nebraska, 4502 Ave. I, Scottsbluff, NE, 69361, USA
| | - Daniel Morris
- Dep. of Electrical and Computer Engineering, Michigan State Univ., 428 S Shaw Ln., East Lansing, MI, 48824, USA
| | - Karen Cichy
- Dep. of Plant, Soil and Microbial Sciences, Michigan State Univ., 1066 Bogue St., East Lansing, MI, 48824, USA
- USDA-ARS, Sugarbeet and Bean Research Unit, 1066 Bogue St., East Lansing, MI, 48824, USA
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Wiesinger JA, Osorno JM, McClean PE, Hart JJ, Glahn RP. Faster cooking times and improved iron bioavailability are associated with the down regulation of procyanidin synthesis in slow-darkening pinto beans (Phaseolus vulgaris L.). J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104444] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Stødkilde L, Ambye-Jensen M, Krogh Jensen S. Biorefined grass-clover protein composition and effect on organic broiler performance and meat fatty acid profile. J Anim Physiol Anim Nutr (Berl) 2020; 104:1757-1767. [PMID: 32578924 DOI: 10.1111/jpn.13406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 11/28/2022]
Abstract
Protein extracted from green biomass can be a sustainable and valuable feed component for organic poultry production. Earlier studies in rats have shown high digestibility of laboratory-scale extracted protein. The aim of this study was to test the effect of upscaling the biorefining process on composition of protein extracted from organic grass-clover and on performance of organic broilers when including grass-clover in the feed. Crude protein content of the extracted grass-clover protein was 36.2% of dry matter (DM) with a higher methionine content, but lower lysine and total sulphur-containing amino acids than that in soybean. Acid-insoluble residue constituted a major fraction of the dietary fibre content, and a large proportion of total CP was bound in this fraction. Alpha-linolenic acid was the dominating fatty acid in the extracted grass-clover protein. One-day-old organic Colour Yield broiler chicks were included in a dose-response trial with grass-clover protein constituting 0%, 8%, 16% or 24% of the feed from day 12 and until slaughter at day 57. Increasing levels of grass-clover protein extract reduced feed intake, growth and slaughter weight; however, at 8% inclusion feed intake and performance were not affected. The fatty acid composition in broiler breast meat reflected the composition of grass-clover protein extract; thus, the increasing dietary addition increased meat alpha-linolenic acid content. A lowered tocopherol content in meat from broilers fed increasing grass-clover protein demonstrated the need for increased amounts of antioxidants due to the high content of unsaturated fat. In conclusion, the study shows that broilers can grow on grass-clover protein from an upscaled biorefining process, but highlights the importance of further optimisation with focus on increased protein content and on avoiding formation of insoluble protein complexes, as these most likely reduce protein digestibility.
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Affiliation(s)
- Lene Stødkilde
- Department of Animal Science, Aarhus University Foulum, Tjele, Denmark
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Erfatpour M, Pauls KP. A R2R3-MYB gene-based marker for the non-darkening seed coat trait in pinto and cranberry beans (Phaseolus vulgaris L.) derived from 'Wit-rood boontje'. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:1977-1994. [PMID: 32112124 PMCID: PMC7237406 DOI: 10.1007/s00122-020-03571-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 02/21/2020] [Indexed: 05/28/2023]
Abstract
KEY MESSAGE The gene Phvul.010G130600 which codes for a MYB was shown to be tightly associated with seed coat darkening in Phaseolus vulgaris and a single nucleotide deletion in the allele in Wit-rood disrupts a transcription activation region that likely prevents its functioning in this non-darkening genotype. The beige and white background colors of the seed coats of conventional pinto and cranberry beans turn brown through a process known as postharvest darkening (PHD). Seed coat PHD is attributed to proanthocyanidin accumulation and its subsequent oxidation in the seed coat. The J gene is an uncharacterized classical genetic locus known to be responsible for PHD in common bean (P. vulgaris) and individuals that are homozygous for its recessive allele have a non-darkening (ND) seed coat phenotype. A previous study identified a major colorimetrically determined QTL for seed coat color on chromosome 10 that was associated with the ND trait. The objectives of this study were to identify a gene associated with seed coat postharvest darkening in common bean and understand its function in promoting seed coat darkening. Amplicon sequencing of 21 candidate genes underlying the QTL associated with the ND trait revealed a single nucleotide deletion (c.703delG) in the candidate gene Phvul.010G130600 in non-darkening recombinant inbred lines derived from crosses between ND 'Wit-rood boontje' and a regular darkening pinto genotype. In silico analysis indicated that Phvul.010G130600 encodes a protein with strong amino acid sequence identity (70%) with a R2R3-MYB-type transcription factor MtPAR, which has been shown to regulate proanthocyanidin biosynthesis in Medicago truncatula seed coat tissue. The deletion in the 'Wit-rood boontje' allele of Phvul.010G130600 likely causes a translational frame shift that disrupts the function of a transcriptional activation domain contained in the C-terminus of the R2R3-MYB. A gene-based dominant marker was developed for the dominant allele of Phvul.010G130600 which can be used for marker-assisted selection of ND beans.
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Affiliation(s)
- M Erfatpour
- Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - K P Pauls
- Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada.
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Lindemann IDS, Lang GH, Ferreira CD, Colussi R, Elias MC, Vanier NL. Cowpea storage under nitrogen‐modified atmosphere at different temperatures: Impact on grain structure, cooking quality, in vitro starch digestibility, and phenolic extractability. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14368] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Igor da Silva Lindemann
- Department of Agroindustrial Science and Technology Federal University of Pelotas Pelotas Brazil
| | - Gustavo Heinrich Lang
- Department of Agroindustrial Science and Technology Federal University of Pelotas Pelotas Brazil
| | | | - Rosana Colussi
- Department of Agroindustrial Science and Technology Federal University of Pelotas Pelotas Brazil
| | - Moacir Cardoso Elias
- Department of Agroindustrial Science and Technology Federal University of Pelotas Pelotas Brazil
| | - Nathan Levien Vanier
- Department of Agroindustrial Science and Technology Federal University of Pelotas Pelotas Brazil
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8
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Erfatpour M, Navabi A, Pauls KP. Mapping the non-darkening trait from 'Wit-rood boontje' in bean (Phaseolus vulgaris). TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2018; 131:1331-1343. [PMID: 29502138 DOI: 10.1007/s00122-018-3081-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/24/2018] [Indexed: 05/28/2023]
Abstract
A QTL for non-darkening seed coat from 'Wit-rood boontje' was mapped in pinto bean population on chromosome Pv10, comprising 40 candidate genes. The seed coat colour darkens with age in some market classes of dry beans (Phaseolus vulgaris), including pinto bean. Beans with darkened seed coats are discounted in the market place, since they are believed to be associated with lower nutritional quality, increased cooking time, and decreased palatability. The objective of this research was to map a non-darkening gene from a cranberry-like bean 'Wit-rood boontje' using a recombinant inbred line population, derived from a cross between 'Wit-rood boontje' and a slow-darkening pinto bean (1533-15). The population was characterized for seed phenotype and genotyped with an Illumina BeadChip. A genetic linkage map was constructed with 1327 informative SNP markers plus an STS marker (OL4S500) and an SSR marker (Pvsd-0028), previously associated with the J gene and Sd gene, respectively, as well as non-darkening and slow-darkening phenotypes. The linkage map spanned 1253.2 cM over 11 chromosomes. A major QTL for the non-darkening trait was flanked by SNP 715646341 and SNP 715646348 on chromosome Pv10. The region, which spanned 13.2 cM, explained 48% of the phenotypic variation for seed coat darkening. Forty candidate genes were identified in the QTL interval. This information can be used to develop a gene-based marker to facilitate breeding non-darkening pinto beans and may lead to a better understanding of the molecular mechanism for the postharvest darkening phenomenon in pinto bean.
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Affiliation(s)
- M Erfatpour
- Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - A Navabi
- Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - K P Pauls
- Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada.
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Duwadi K, Austin RS, Mainali HR, Bett K, Marsolais F, Dhaubhadel S. Slow darkening of pinto bean seed coat is associated with significant metabolite and transcript differences related to proanthocyanidin biosynthesis. BMC Genomics 2018; 19:260. [PMID: 29661146 PMCID: PMC5903001 DOI: 10.1186/s12864-018-4550-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 02/14/2018] [Indexed: 11/29/2022] Open
Abstract
Background Postharvest seed coat darkening in pinto bean is an undesirable trait resulting in a loss in the economic value of the crop. The extent of darkening varies between the bean cultivars and their storage conditions. Results Metabolite analysis revealed that the majority of flavonoids including proanthocyanidin monomer catechin accumulated at higher level in a regular darkening (RD) pinto line CDC Pintium than in a slow darkening (SD) line 1533–15. A transcriptome analysis was conducted to compare gene expression between CDC Pintium and 1533–15 and identify the gene (s) that may play a role in slow darkening processes in 1533–15 pinto. RNAseq against total RNA from RD and SD cultivars found several phenylpropanoid genes, metabolite transporter genes and genes involved in gene regulation or modification to be differentially expressed between CDC Pintium and 1533–15. Conclusion RNAseq analysis and metabolite data of seed coat tissue from CDC Pintium and 1533–15 revealed that the whole proanthocyanidin biosynthetic pathway was downregulated in 1533–15. Additionally, genes that encode for putative transporter proteins were also downregulated in 1533–15 suggesting both synthesis and accumulation of proanthocyanidin is reduced in SD pintos. Electronic supplementary material The online version of this article (10.1186/s12864-018-4550-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kishor Duwadi
- Department of Biology, University of Western Ontario, London, ON, Canada
| | - Ryan S Austin
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, N5V 4T3, Canada.,Department of Biology, University of Western Ontario, London, ON, Canada
| | - Hemanta R Mainali
- Department of Biology, University of Western Ontario, London, ON, Canada
| | - Kirstin Bett
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Frédéric Marsolais
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, N5V 4T3, Canada.,Department of Biology, University of Western Ontario, London, ON, Canada
| | - Sangeeta Dhaubhadel
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, N5V 4T3, Canada. .,Department of Biology, University of Western Ontario, London, ON, Canada.
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Lindemann IDS, Lang GH, Hoffmann JF, Rombaldi CV, de Oliveira M, Elias MC, Vanier NL. Foliar Desiccators Glyphosate, Carfentrazone, and Paraquat Affect the Technological and Chemical Properties of Cowpea Grains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:6771-6778. [PMID: 28731694 DOI: 10.1021/acs.jafc.7b01912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effects of the use of glyphosate (GLY), glyphosate plus carfentrazone (GLY/CAR), and paraquat (PAR) as plant desiccators on the technological and chemical properties of cowpea grains were investigated. All studied desiccants provided lower cooking time to freshly harvested cowpea. However, the coat color of PAR- and GLY/CAR-treated cowpea was reddish in comparison to the control treatment. Principal component analysis (PCA) from liquid chromatography-mass spectrometry (LC-MS) data sets showed a clear distinction among cowpea from the different treatments. Catechin-3-glucoside and epicatechin significantly contributed for discriminating GLY-treated cowpea, while citric acid was responsible for discriminating GLY/CAR-treated cowpea. Quercetin derivative and gluconic acid were responsible for discriminating control treatment. Residual glyphosate and paraquat content was higher than the maximum limits allowed by Codex Alimentarius and the European Union Commission. Improvements in the technological and chemical properties of cowpea may not be overlapped by the risks that those desiccants exhibit when exceeding the maximum limits of tolerance in food.
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Affiliation(s)
- Igor da Silva Lindemann
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
| | - Gustavo Heinrich Lang
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
| | - Jessica Fernanda Hoffmann
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
| | - Cesar Valmor Rombaldi
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
| | - Maurício de Oliveira
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
| | - Moacir Cardoso Elias
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
| | - Nathan Levien Vanier
- Department of Agroindustrial Science and Technology, Federal University of Pelotas , 96010-900, Pelotas, Rio Grande do Sul, Brazil
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Freixas Coutin JA, Munholland S, Silva A, Subedi S, Lukens L, Crosby WL, Pauls KP, Bozzo GG. Proanthocyanidin accumulation and transcriptional responses in the seed coat of cranberry beans (Phaseolus vulgaris L.) with different susceptibility to postharvest darkening. BMC PLANT BIOLOGY 2017; 17:89. [PMID: 28545577 PMCID: PMC5445279 DOI: 10.1186/s12870-017-1037-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 05/12/2017] [Indexed: 05/27/2023]
Abstract
BACKGROUND Edible dry beans (Phaseolus vulgaris L.) that darken during postharvest storage are graded lower and are less marketable than their non-darkened counterparts. Seed coat darkening in susceptible genotypes is dependent upon the availability of proanthocyanidins, and their subsequent oxidation to reactive quinones. Mature cranberry beans lacking this postharvest darkening trait tend to be proanthocyanidin-deficient, although the underlying molecular and biochemical determinants for this metabolic phenomenon are unknown. RESULTS Seed coat proanthocyanidin levels increased with plant maturation in a darkening-susceptible cranberry bean recombinant inbred line (RIL), whereas these metabolites were absent in seeds of the non-darkening RIL plants. RNA sequencing (RNA-seq) analysis was used to monitor changes in the seed coat transcriptome as a function of bean development, where transcript levels were measured as fragments per kilobase of exon per million fragments mapped. A total of 1336 genes were differentially expressed between darkening and non-darkening cranberry bean RILs. Structural and regulatory genes of the proanthocyanidin biosynthesis pathway were upregulated in seed coats of the darkening RIL. A principal component analysis determined that changes in transcript levels for two genes of unknown function and three proanthocyanidin biosynthesis genes, FLAVANONE 3-HYDROXYLASE 1, DIHYDROFLAVONOL 4-REDUCTASE 1 and ANTHOCYANIDIN REDUCTASE 1 (PvANR1) were highly correlated with proanthocyanidin accumulation in seed coats of the darkening-susceptible cranberry bean RIL. HPLC-DAD analysis revealed that in vitro activity of a recombinant PvANR1 was NADPH-dependent and assays containing cyanidin yielded epicatechin and catechin; high cyanidin substrate levels inhibited the formation of both of these products. CONCLUSION Proanthocyanidin oxidation is a pre-requisite for postharvest-related seed coat darkening in dicotyledonous seeds. In model plant species, the accumulation of proanthocyanidins is dependent upon upregulation of biosynthetic genes. In this study, proanthocyanidin production in cranberry bean seed coats was strongly associated with an increase in PvANR1 transcripts during seed maturation. In the presence of NADPH, PvANR1 converted the physiologically relevant substrate cyanidin to epicatechin and catechin.
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Affiliation(s)
- José A. Freixas Coutin
- Department of Plant Agriculture, University of Guelph, 50 Stone Rd E., Guelph, ON N1G 2W1 Canada
| | - Seth Munholland
- Department of Biological Sciences, University of Windsor, 401 Sunset Ave, Windsor, ON N9B 3P4 Canada
| | - Anjali Silva
- Department of Mathematics and Statistics, University of Guelph, 50 Stone Rd E., Guelph, ON N1G 2W1 Canada
| | - Sanjeena Subedi
- Department of Mathematics and Statistics, University of Guelph, 50 Stone Rd E., Guelph, ON N1G 2W1 Canada
- Present address: Department of Mathematical Sciences, Binghamton University (State University of New York), 4440 Vestal Parkway E., Binghamton, New York 13902 USA
| | - Lewis Lukens
- Department of Plant Agriculture, University of Guelph, 50 Stone Rd E., Guelph, ON N1G 2W1 Canada
| | - William L. Crosby
- Department of Biological Sciences, University of Windsor, 401 Sunset Ave, Windsor, ON N9B 3P4 Canada
| | - K. Peter Pauls
- Department of Plant Agriculture, University of Guelph, 50 Stone Rd E., Guelph, ON N1G 2W1 Canada
| | - Gale G. Bozzo
- Department of Plant Agriculture, University of Guelph, 50 Stone Rd E., Guelph, ON N1G 2W1 Canada
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Hradilová I, Trněný O, Válková M, Cechová M, Janská A, Prokešová L, Aamir K, Krezdorn N, Rotter B, Winter P, Varshney RK, Soukup A, Bednář P, Hanáček P, Smýkal P. A Combined Comparative Transcriptomic, Metabolomic, and Anatomical Analyses of Two Key Domestication Traits: Pod Dehiscence and Seed Dormancy in Pea ( Pisum sp.). FRONTIERS IN PLANT SCIENCE 2017; 8:542. [PMID: 28487704 PMCID: PMC5404241 DOI: 10.3389/fpls.2017.00542] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 03/27/2017] [Indexed: 05/19/2023]
Abstract
The origin of the agriculture was one of the turning points in human history, and a central part of this was the evolution of new plant forms, domesticated crops. Seed dispersal and germination are two key traits which have been selected to facilitate cultivation and harvesting of crops. The objective of this study was to analyze anatomical structure of seed coat and pod, identify metabolic compounds associated with water-impermeable seed coat and differentially expressed genes involved in pea seed dormancy and pod dehiscence. Comparative anatomical, metabolomics, and transcriptomic analyses were carried out on wild dormant, dehiscent Pisum elatius (JI64, VIR320) and cultivated, indehiscent Pisum sativum non-dormant (JI92, Cameor) and recombinant inbred lines (RILs). Considerable differences were found in texture of testa surface, length of macrosclereids, and seed coat thickness. Histochemical and biochemical analyses indicated genotype related variation in composition and heterogeneity of seed coat cell walls within macrosclereids. Liquid chromatography-electrospray ionization/mass spectrometry and Laser desorption/ionization-mass spectrometry of separated seed coats revealed significantly higher contents of proanthocyanidins (dimer and trimer of gallocatechin), quercetin, and myricetin rhamnosides and hydroxylated fatty acids in dormant compared to non-dormant genotypes. Bulk Segregant Analysis coupled to high throughput RNA sequencing resulted in identification of 770 and 148 differentially expressed genes between dormant and non-dormant seeds or dehiscent and indehiscent pods, respectively. The expression of 14 selected dormancy-related genes was studied by qRT-PCR. Of these, expression pattern of four genes: porin (MACE-S082), peroxisomal membrane PEX14-like protein (MACE-S108), 4-coumarate CoA ligase (MACE-S131), and UDP-glucosyl transferase (MACE-S139) was in agreement in all four genotypes with Massive analysis of cDNA Ends (MACE) data. In case of pod dehiscence, the analysis of two candidate genes (SHATTERING and SHATTERPROOF) and three out of 20 MACE identified genes (MACE-P004, MACE-P013, MACE-P015) showed down-expression in dorsal and ventral pod suture of indehiscent genotypes. Moreover, MACE-P015, the homolog of peptidoglycan-binding domain or proline-rich extensin-like protein mapped correctly to predicted Dpo1 locus on PsLGIII. This integrated analysis of the seed coat in wild and cultivated pea provides new insight as well as raises new questions associated with domestication and seed dormancy and pod dehiscence.
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Affiliation(s)
- Iveta Hradilová
- Department of Botany, Palacký University in OlomoucOlomouc, Czechia
| | - Oldřich Trněný
- Department of Plant Biology, Mendel University in BrnoBrno, Czechia
- Agricultural Research, Ltd.Troubsko, Czechia
| | - Markéta Válková
- Department of Analytical Chemistry, Regional Centre of Advanced Technologies and Materials, Palacký University in OlomoucOlomouc, Czechia
- Faculty of Science, Palacký University in OlomoucOlomouc, Czechia
| | - Monika Cechová
- Department of Analytical Chemistry, Regional Centre of Advanced Technologies and Materials, Palacký University in OlomoucOlomouc, Czechia
- Faculty of Science, Palacký University in OlomoucOlomouc, Czechia
| | - Anna Janská
- Department of Experimental Plant Biology, Charles UniversityPrague, Czechia
| | - Lenka Prokešová
- Department of Crop Science, Breeding and Plant Medicine, Mendel University in BrnoBrno, Czechia
| | - Khan Aamir
- Research Program-Genetic Gains, ICRISATHyderabad, India
| | | | | | | | | | - Aleš Soukup
- Department of Experimental Plant Biology, Charles UniversityPrague, Czechia
| | - Petr Bednář
- Department of Analytical Chemistry, Regional Centre of Advanced Technologies and Materials, Palacký University in OlomoucOlomouc, Czechia
- Faculty of Science, Palacký University in OlomoucOlomouc, Czechia
| | - Pavel Hanáček
- Department of Plant Biology, Mendel University in BrnoBrno, Czechia
| | - Petr Smýkal
- Department of Botany, Palacký University in OlomoucOlomouc, Czechia
- *Correspondence: Petr Smýkal
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13
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Siqueira BDS, Bassinello PZ, Santos SC, Malgaresi G, Ferri PH, Rodriguez AG, Fernandes KF. Do enzymatic or non-enzymatic pathways drive the postharvest darkening phenomenon in carioca bean tegument? Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.01.079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Characterization of free, conjugated and bound phenolics and lipophilic antioxidants in regular- and non-darkening cranberry beans (Phaseolus vulgaris L.). Food Chem 2015; 185:298-308. [DOI: 10.1016/j.foodchem.2015.03.100] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/09/2015] [Accepted: 03/19/2015] [Indexed: 12/13/2022]
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15
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Free and conjugated phenolic compounds and their antioxidant activities in regular and non-darkening cranberry bean (Phaseolus vulgaris L.) seed coats. J Funct Foods 2015. [DOI: 10.1016/j.jff.2014.10.032] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Fuerst EP, Okubara PA, Anderson JV, Morris CF. Polyphenol oxidase as a biochemical seed defense mechanism. FRONTIERS IN PLANT SCIENCE 2014; 5:689. [PMID: 25540647 PMCID: PMC4261696 DOI: 10.3389/fpls.2014.00689] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 11/18/2014] [Indexed: 05/24/2023]
Abstract
Seed dormancy and resistance to decay are fundamental survival strategies, which allow a population of seeds to germinate over long periods of time. Seeds have physical, chemical, and biological defense mechanisms that protect their food reserves from decay-inducing organisms and herbivores. Here, we hypothesize that seeds also possess enzyme-based biochemical defenses, based on induction of the plant defense enzyme, polyphenol oxidase (PPO), when wild oat (Avena fatua L.) caryopses and seeds were challenged with seed-decaying Fusarium fungi. These studies suggest that dormant seeds are capable of mounting a defense response to pathogens. The pathogen-induced PPO activity from wild oat was attributed to a soluble isoform of the enzyme that appeared to result, at least in part, from proteolytic activation of a latent PPO isoform. PPO activity was also induced in wild oat hulls (lemma and palea), non-living tissues that cover and protect the caryopsis. These results are consistent with the hypothesis that seeds possess inducible enzyme-based biochemical defenses arrayed on the exterior of seeds and these defenses represent a fundamental mechanism of seed survival and longevity in the soil. Enzyme-based biochemical defenses may have broader implications since they may apply to other defense enzymes as well as to a diversity of plant species and ecosystems.
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Affiliation(s)
- E. Patrick Fuerst
- Department of Crop and Soil Sciences, Washington State UniversityPullman, WA, USA
| | - Patricia A. Okubara
- Root Disease and Biological Control Research Unit, United States Department of Agriculture – Agricultural Research Service, Washington State UniversityPullman, WA, USA
| | - James V. Anderson
- Biosciences Research Laboratory, United States Department of Agriculture – Agricultural Research ServiceFargo, ND, USA
| | - Craig F. Morris
- Western Wheat Quality Laboratory, United States Department of Agriculture – Agricultural Research Service, Washington State UniversityPullman, WA, USA
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17
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Increased stored soybean dietary fibre concentration is positively correlated to testa darkening measured chromaticity. J Cereal Sci 2014. [DOI: 10.1016/j.jcs.2014.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Jin A(L, Ozga JA, Lopes-Lutz D, Schieber A, Reinecke DM. Characterization of proanthocyanidins in pea (Pisum sativum L.), lentil (Lens culinaris L.), and faba bean (Vicia faba L.) seeds. Food Res Int 2012. [DOI: 10.1016/j.foodres.2011.11.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Oomah BD, Corbé A, Balasubramanian P. Antioxidant and anti-inflammatory activities of bean ( Phaseolus vulgaris L.) hulls. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:8225-30. [PMID: 20572671 DOI: 10.1021/jf1011193] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Hulls obtained by mechanical abrasive dehulling from four bean cultivars were extracted with two solvents, aqueous (70%) acetone and water, and the extracts evaluated for antioxidant and anti-inflammatory activities in relation to their phenolic contents. Total phenolic content and antioxidant activity of bean hulls, measured using oxygen radical absorbance capacity (ORAC) values, were 6-8-fold those of corresponding whole beans. Aqueous acetone (70%) extracted over twice the amount of total phenolics from hulls that exhibited significantly higher antioxidant and stronger inhibitory effect on both cyclooxygenases, COX-1 and COX-2, than water. Acetone extract of black bean hull exhibited strong COX-1 (IC(50) = 1.2 microg/mL) and COX-2 (IC(50) = 38 microg/mL) inhibitory effects, even outperforming aspirin. Bean hull water extracts were stronger inhibitors of lipoxygenase, 15-LOX, than corresponding acetone extracts. Anti-inflammatory activity of bean hulls was dependent on their phenolic content and antioxidant activity that were significantly affected by cultivar and extracting solvent.
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Affiliation(s)
- B Dave Oomah
- Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Summerland, British Columbia, Canada.
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Marles MAS, Balasubramanian P, Bett KE. Differential accumulation of polyphenolics in black bean genotypes grown in four environments. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:7001-7006. [PMID: 20481468 DOI: 10.1021/jf100630g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Environmental effects on polyphenolic composition of pigmented seed coat tissue were examined in four black bean genotypes, grown in four locations in Canada. Genotype was the most significant determinant in the phenotypic expression of flavonoid traits across four locations (p < 0.0001). The genotype x environment interaction was not significantly different for anthocyanin or extractable condensed tannin (syn. proanthocyanidin) but was significant for the bound anthocyanidin concentration (p < 0.05). One trace metabolite, (-)-epicatechin, was identified, but no flavonols were detected in the seed coats. Sequestration of anthocyanin in the seed coat was genotype-dependent and predominantly consisted of delphinidin with lesser amounts of petunidin and malvidin. Pigment sequestration in the two integument layers of the seed coat appeared to be mutually exclusive across all genotypes in terms of the pigment chemical character. Tissue-specific accumulation of extractable and bound anthocyanin in the outer integument was observed. The inner integument was devoid of anthocyanin, and the pigment consisted solely of condensed tannin inclusions. The occurrence of condensed tannin together with anthocyanin pigments, whether extractable or bound either by oxidation or by cross-linking, influenced the visual uniformity of seeds of bean cultivars. The co-occurrence of these compounds could have an effect on postharvest appearance during storage, on canning quality, and on the dietary effects of the putative functional food profile in the black bean market class.
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Affiliation(s)
- M A Susan Marles
- Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan S7N 5A8, Canada
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Marles MAS, Coulman BE, Bett KE. Interference of condensed tannin in lignin analyses of dry bean and forage crops. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:9797-9802. [PMID: 18841900 DOI: 10.1021/jf800888r] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Legumes with high concentrations of condensed tannin (pinto bean [Phaseolus vulgaris L.], sainfoin [Onobrychis viciifolia Scop.], and big trefoil [Lotus uliginosus Hoff.]), were compared to a selection of forages, with low or zero condensed tannin (smooth bromegrass [ Bromus inermis Leyss], Lotus japonicus [Regel] K. Larsen, and alfalfa [Medicago sativa L.]), using four methods to estimate fiber or lignin. Protocols were validated by using semipurified condensed tannin polymers in adulteration assays that tested low-lignin tissue with polyphenolic-enriched samples. The effect on lignin assay methods by condensed tannin concentration was interpreted using a multivariate analysis. There was an overestimation of fiber or lignin in the presence of condensed tannin in the acid detergent fiber (ADF) and Klason lignin (KL) assays compared to that in the thioglycolic acid (TGA) and acid detergent lignin (ADL) methods. Sulfite reagents (present in TGA lignin method) or sequential acidic digests at high temperatures (ADF followed by ADL) were required to eliminate condensed tannin. The ADF (alone) and KL protocols are not recommended to screen nonwoody plants, such as forages, where condensed tannin has accumulated in the tissue.
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Affiliation(s)
- M A Susan Marles
- Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK, Canada S7N 5A8.
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