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Casarrubias-Castillo K, Délano-Frier JP, Palmeros-Suárez PA. RNA Isolation Method in Marginal Crops with High Agronomic Potential. Methods Mol Biol 2024; 2787:201-207. [PMID: 38656491 DOI: 10.1007/978-1-0716-3778-4_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Ribonucleic Acid (RNA) isolation is a basic technique in the field of molecular biology. The purpose of RNA isolation is to acquire pure and complete RNA that can be used to evaluate gene expression. Many methods can be used to perform RNA isolation, all of them based on the chemical properties of nucleic acids. However, some of them do not achieve high RNA yields and purity levels when used in a number of marginally studied crops of agronomic importance, such as grain and vegetable amaranth plants. In the method described here, the use of guanidinium thiocyanate and two additional precipitation steps with different reagents designed to obtain high yields and RNA purity levels from diverse plant species employed for plant functional genomics studies is described.
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Affiliation(s)
- Kena Casarrubias-Castillo
- Departamento de Ecología, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan, Jalisco, México
| | - John Paul Délano-Frier
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato, Guanajuato, México
| | - Paola Andrea Palmeros-Suárez
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara, Zapopan, Jalisco, México.
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Verbeecke V, Custódio L, Strobbe S, Van Der Straeten D. The role of orphan crops in the transition to nutritional quality-oriented crop improvement. Biotechnol Adv 2023; 68:108242. [PMID: 37640278 DOI: 10.1016/j.biotechadv.2023.108242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/09/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023]
Abstract
Micronutrient malnutrition is a persisting problem threatening global human health. Biofortification via metabolic engineering has been proposed as a cost-effective and short-term means to alleviate this burden. There has been a recent rise in the recognition of potential that underutilized, orphan crops can hold in decreasing malnutrition concerns. Here, we illustrate how orphan crops can serve as a medium to provide micronutrients to populations in need, whilst promoting and maintaining dietary diversity. We provide a roadmap, illustrating which aspects to be taken into consideration when evaluating orphan crops. Recent developments have shown successful biofortification via metabolic engineering in staple crops. This review provides guidance in the implementation of these successes to relevant orphan crop species, with a specific focus on the relevant micronutrients iron, zinc, provitamin A and folates.
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Affiliation(s)
- Vincent Verbeecke
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - Laura Custódio
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - Simon Strobbe
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium
| | - Dominique Van Der Straeten
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000 Ghent, Belgium.
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Wang M, Qin YY, Wei NN, Xue HY, Dai WS. Highly efficient Agrobacterium rhizogenes-mediated hairy root transformation in citrus seeds and its application in gene functional analysis. FRONTIERS IN PLANT SCIENCE 2023; 14:1293374. [PMID: 38023879 PMCID: PMC10644275 DOI: 10.3389/fpls.2023.1293374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Abstract
Highly efficient genetic transformation technology is beneficial for plant gene functional research and molecular improvement breeding. However, the most commonly used Agrobacterium tumefaciens-mediated genetic transformation technology is time-consuming and recalcitrant for some woody plants such as citrus, hampering the high-throughput functional analysis of citrus genes. Thus, we dedicated to develop a rapid, simple, and highly efficient hairy root transformation system induced by Agrobacterium rhizogenes to analyze citrus gene function. In this report, a rapid, universal, and highly efficient hairy root transformation system in citrus seeds was described. Only 15 days were required for the entire workflow and the system was applicable for various citrus genotypes, with a maximum transformation frequency of 96.1%. After optimization, the transformation frequency of Citrus sinensis, which shows the lowest transformation frequency of 52.3% among four citrus genotypes initially, was increased to 71.4% successfully. To test the applicability of the hairy roots transformation system for gene functional analysis of citrus genes, we evaluated the subcellular localization, gene overexpression and gene editing in transformed hairy roots. Compared with the traditional transient transformation system performed in tobacco leaves, the transgenic citrus hairy roots displayed a more clear and specific subcellular fluorescence localization. Transcript levels of genes were significantly increased in overexpressing transgenic citrus hairy roots as compared with wild-type (WT). Additionally, hairy root transformation system in citrus seeds was successful in obtaining transformants with knocked out targets, indicating that the Agrobacterium rhizogenes-mediated transformation enables the CRISPR/Cas9-mediated gene editing. In summary, we established a highly efficient genetic transformation technology with non-tissue-culture in citrus that can be used for functional analysis such as protein subcellular localization, gene overexpression and gene editing. Since the material used for genetic transformation are roots protruding out of citrus seeds, the process of planting seedlings prior to transformation of conventional tissue culture or non-tissue-culture was eliminated, and the experimental time was greatly reduced. We anticipate that this genetic transformation technology will be a valuable tool for routine research of citrus genes in the future.
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Affiliation(s)
| | | | | | | | - Wen-Shan Dai
- China-USA Citrus Huanglongbing Joint Laboratory, National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
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Anuradha, Kumari M, Zinta G, Chauhan R, Kumar A, Singh S, Singh S. Genetic resources and breeding approaches for improvement of amaranth ( Amaranthus spp.) and quinoa ( Chenopodium quinoa). Front Nutr 2023; 10:1129723. [PMID: 37554703 PMCID: PMC10405290 DOI: 10.3389/fnut.2023.1129723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 07/03/2023] [Indexed: 08/10/2023] Open
Abstract
Nowadays, the human population is more concerned about their diet and very specific in choosing their food sources to ensure a healthy lifestyle and avoid diseases. So people are shifting to more smart nutritious food choices other than regular cereals and staple foods they have been eating for a long time. Pseudocereals, especially, amaranth and quinoa, are important alternatives to traditional cereals due to comparatively higher nutrition, essential minerals, amino acids, and zero gluten. Both Amaranchaceae crops are low-input demanding and hardy plants tolerant to stress, drought, and salinity conditions. Thus, these crops may benefit developing countries that follow subsistence agriculture and have limited farming resources. However, these are underutilized orphan crops, and the efforts to improve them by reducing their saponin content remain ignored for a long time. Furthermore, these crops have very rich variability, but the progress of their genetic gain for getting high-yielding genotypes is slow. Realizing problems in traditional cereals and opting for crop diversification to tackle climate change, research should be focused on the genetic improvement for low saponin, nutritionally rich, tolerant to biotic and abiotic stresses, location-specific photoperiod, and high yielding varietal development of amaranth and quinoa to expand their commercial cultivation. The latest technologies that can accelerate the breeding to improve yield and quality in these crops are much behind and slower than the already established major crops of the world. We could learn from past mistakes and utilize the latest trends such as CRISPR/Cas, TILLING, and RNA interference (RNAi) technology to improve these pseudocereals genetically. Hence, the study reviewed important nutrition quality traits, morphological descriptors, their breeding behavior, available genetic resources, and breeding approaches for these crops to shed light on future breeding strategies to develop superior genotypes.
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Affiliation(s)
- Anuradha
- Division of Agrotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Manisha Kumari
- Division of Agrotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Gaurav Zinta
- Division of Biotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Ramesh Chauhan
- Division of Agrotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Ashok Kumar
- Division of Agrotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Sanatsujat Singh
- Division of Agrotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
| | - Satbeer Singh
- Division of Agrotechnology, Council of Scientific and Industrial Research–Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, India
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Ma H, Meng X, Xu K, Li M, Gmitter FG, Liu N, Gai Y, Huang S, Wang M, Wang M, Wang N, Xu H, Liu J, Sun X, Duan S. Highly efficient hairy root genetic transformation and applications in citrus. FRONTIERS IN PLANT SCIENCE 2022; 13:1039094. [PMID: 36388468 PMCID: PMC9647159 DOI: 10.3389/fpls.2022.1039094] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Highly efficient genetic transformation technology is greatly beneficial for crop gene function analysis and precision breeding. However, the most commonly used genetic transformation technology for woody plants, mediated by Agrobacterium tumefaciens, is time-consuming and inefficient, which limits its utility for gene function analysis. In this study, a simple, universal, and highly efficient genetic transformation technology mediated by A. rhizogenes K599 is described. This technology can be applied to multiple citrus genotypes, and only 2-8 weeks were required for the entire workflow. Genome-editing experiments were simultaneously conducted using 11 plasmids targeting different genomic positions and all corresponding transformants with the target knocked out were obtained, indicating that A. rhizogenes-mediated genome editing was highly efficient. In addition, the technology is advantageous for investigation of specific genes (such as ACD2) for obtaining "hard-to-get" transgenic root tissue. Furthermore, A. rhizogenes can be used for direct viral vector inoculation on citrus bypassing the requirement for virion enrichment in tobacco, which facilitates virus-induced gene silencing and virus-mediated gene expression. In summary, we established a highly efficient genetic transformation technology bypassing tissue culture in citrus that can be used for genome editing, gene overexpression, and virus-mediated gene function analysis. We anticipate that by reducing the cost, required workload, experimental period, and other technical obstacles, this genetic transformation technology will be a valuable tool for routine investigation of endogenous and exogenous genes in citrus.
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Affiliation(s)
- Haijie Ma
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Xinyue Meng
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Kai Xu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Min Li
- China-USA Citrus Huanglongbing Joint Laboratory (A Joint Laboratory of The University of Florida’s Institute of Food and Agricultural Sciences and Gannan Normal University), National Navel Orange Engineering Research Center, Gannan Normal University, Ganzhou, Jiangxi, China
| | - Fred G. Gmitter
- Citrus Research and Education Center, Horticultural Sciences Department, University of Florida, Lake Alfred, FL, United States
| | - Ningge Liu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Yunpeng Gai
- School of Grassland Science, Beijing Forestry University, Beijing, China
| | - Suya Huang
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Min Wang
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Min Wang
- China-USA Citrus Huanglongbing Joint Laboratory (A Joint Laboratory of The University of Florida’s Institute of Food and Agricultural Sciences and Gannan Normal University), National Navel Orange Engineering Research Center, Gannan Normal University, Ganzhou, Jiangxi, China
| | - Nian Wang
- Citrus Research and Education Center, Horticultural Sciences Department, University of Florida, Lake Alfred, FL, United States
| | - Hairen Xu
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Jinhua Liu
- Natural Medicine Institute of Zhejiang YangShengTang Co., LTD, Hangzhou, Zhejiang, China
| | - Xuepeng Sun
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Shuo Duan
- China-USA Citrus Huanglongbing Joint Laboratory (A Joint Laboratory of The University of Florida’s Institute of Food and Agricultural Sciences and Gannan Normal University), National Navel Orange Engineering Research Center, Gannan Normal University, Ganzhou, Jiangxi, China
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Sarker U, Lin YP, Oba S, Yoshioka Y, Hoshikawa K. Prospects and potentials of underutilized leafy Amaranths as vegetable use for health-promotion. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 182:104-123. [PMID: 35487123 DOI: 10.1016/j.plaphy.2022.04.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/31/2022] [Accepted: 04/09/2022] [Indexed: 05/23/2023]
Abstract
Climate change causes environmental variation worldwide, which is one of the most serious threats to global food security. In addition, more than 2 billion people in the world are reported to suffer from serious malnutrition, referred to as 'hidden hunger.' Dependence on only a few crops could lead to the loss of genetic diversity and high fragility of crop breeding in systems adapting to global scale climate change. The exploitation of underutilized species and genetic resources, referred to as orphan crops, could be a useful approach for resolving the issue of adaptability to environmental alteration, biodiversity preservation, and improvement of nutrient quality and quantity to ensure food security. Moreover, the use of these alternative crops will help to increase the human health benefits and the income of farmers in developing countries. In this review, we highlight the potential of orphan crops, especially amaranths, for use as vegetables and health-promoting nutritional components. This review highlights promising diversified sources of amaranth germplasms, their tolerance to abiotic stresses, and their nutritional, phytochemical, and antioxidant values for vegetable purposes. Betalains (betacyanins and betaxanthins), unique antioxidant components in amaranth vegetables, are also highlighted regarding their chemodiversity across amaranth germplasms and their stability and degradation. In addition, we discuss the physiological functions, antioxidant, antilipidemic, anticancer, and antimicrobial activities, as well as the biosynthesis pathway, molecular, biochemical, genetics, and genomic mechanisms of betalains in detail.
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Affiliation(s)
- Umakanta Sarker
- Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
| | - Ya-Ping Lin
- World Vegetable Center, P.O. Box 42, Shanhua, Tainan, 74199, Taiwan
| | - Shinya Oba
- Faculty of Applied Biological Science, Gifu University, Gifu, 501-1193, Japan
| | - Yosuke Yoshioka
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, 305-8572, Ibaraki, Japan; Tsukuba-Plant Innovation Research Center, University of Tsukuba, Tsukuba, 305-8572, Japan
| | - Ken Hoshikawa
- World Vegetable Center, P.O. Box 42, Shanhua, Tainan, 74199, Taiwan; Tsukuba-Plant Innovation Research Center, University of Tsukuba, Tsukuba, 305-8572, Japan; Biological Resources and Post-harvest Division, Japan International Research Center for Agricultural Sciences, Ohwashi 1-1, Tsukuba, Ibaraki, 305-8686, Japan.
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Portillo-Nava C, Guerrero-Esperanza M, Guerrero-Rangel A, Guevara-Domínguez P, Martínez-Gallardo N, Nava-Sandoval C, Ordaz-Ortiz J, Sánchez-Segura L, Délano-Frier J. Natural or light-induced pigment accumulation in grain amaranths coincides with enhanced resistance against insect herbivory. PLANTA 2021; 254:101. [PMID: 34669050 DOI: 10.1007/s00425-021-03757-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
MAIN CONCLUSION Increased resistance to insect herbivory in grain amaranth plants is associated with increased betalain pigmentation, either naturally acquired or accumulated in response to blue-red light irradiation. Betalains are water-soluble pigments characteristic of plants of the Caryophyllales order. Their abiotic stress-induced accumulation is believed to protect against oxidative damage, while their defensive function against biotic aggressors is scarce. A previous observation of induced betalain-biosynthetic gene expression in stressed grain amaranth plants led to the proposal that these pigments play a defensive role against insect herbivory. This study provided further support for this premise. First, a comparison of "green" and "red" Amaranthus cruentus phenotypes showed that the latter suffered less insect herbivory damage. Coincidentally, growth and vitality of Manduca sexta larvae were more severely affected when fed on red-leafed A. cruentus plants or on an artificial diet supplemented with red-leaf pigment extracts. Second, the exposure of A. cruentus and A. caudatus plants, having contrasting pigmentation phenotypes, to light enriched in the blue and red wavelength spectra led to pigment accumulation throughout the plant and to increased resistance to insect herbivory. These events were accompanied by the induced expression of known betalain-biosynthetic genes, including uncharacterized DODA genes believed to participate in this biosynthetic pathway in a still undefined way. Finally, transient co-expression of different combinations of betalain-biosynthetic genes in Nicotiana benthamiana led to detectable accumulation of betalamic acid and betanidin. This outcome supported the participation of certain AhDODA and other genes in the grain amaranth betalain-biosynthetic pathway.
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Affiliation(s)
- Claudia Portillo-Nava
- Department of Biotechnology and Biochemistry, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - Moisés Guerrero-Esperanza
- Metabolomics Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad de Genómica Avanzada, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - Armando Guerrero-Rangel
- Department of Biotechnology and Biochemistry, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - Paulina Guevara-Domínguez
- Metabolomics Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad de Genómica Avanzada, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - Norma Martínez-Gallardo
- Department of Biotechnology and Biochemistry, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - Cecilia Nava-Sandoval
- Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Unidad Profesional Lázaro Cárdenas, Prolongación de Carpio y Plan de Ayala S/N,Col. Santo Tomás, CDMX, CP, 11340, Alcaldía Miguel Hidalgo, México
| | - José Ordaz-Ortiz
- Metabolomics Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad de Genómica Avanzada, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - Lino Sánchez-Segura
- Department of Biotechnology and Biochemistry, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México
| | - John Délano-Frier
- Department of Biotechnology and Biochemistry, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Kilómetro 9.6 Libramiento Norte Carretera Irapuato-León, CP, 36821, Irapuato, Guanajuato, México.
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Yaroshko OM. TRANSIENT EXPRESSION OF REPORTER GENES IN CULTIVARS OF Amaranthus caudatus L. BIOTECHNOLOGIA ACTA 2021. [DOI: 10.15407/biotech14.04.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Local cultivars of A. caudatus: Helios and Karmin were used as plant material. Amaranth is a new pseudocereal introduced in Ukraine. The plant biomass of amaranth is used in medicine, food industry and cosmetology industry. Aim. The purpose of the work was to identify the optimal conditions for the transient expression of reporter genes in Amaranthus caudatus cultivars. Methods. Biochemical and microscopy methods were used in the following work. Seedlings and adult plants of different age were infiltrated with agrobacterial suspensions separately (genetic vector pCBV19 with a uidA gene and genetic vector pNMD2501 with a gfp gene in Agrobacterium tumefaciens GV3101 strain). Results. Transient expression of the uidA and gfp genes was obtained in amaranth plants after conduction series of experiments. The most intensive transient expression of gfp and uidA genes was observed in seedlings infiltrated at the age of 1 day. The maximum fluorescence of the GFP protein was observed on 5th–6th days. Conclusions. It was shown that the cultivar Helios was more susceptible to agrobacterial infection than the cultivar Karmin. The effectiveness of Agrobacterium mediated transformation was from 16% to 95% for the Helios cultivar and from 12% to 93% for the Karmin cultivar. The obtained results indicate that the studied amaranth cultivars can potentially be used for obtaining transient expression of target genes and synthesizing target proteins in their tissues in the future.
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YAROSHKO O. Achievements in Genetic Engineering of Amaranthus L. Representatives. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2021. [DOI: 10.21448/ijsm.925737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Gonçalves-Dias J, Stetter MG. PopAmaranth: A population genetic genome browser for grain amaranths and their wild relatives. G3-GENES GENOMES GENETICS 2021; 11:6208888. [PMID: 33822034 PMCID: PMC8495932 DOI: 10.1093/g3journal/jkab103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/07/2021] [Indexed: 12/15/2022]
Abstract
The combination of genomic, physiological, and population genetic research has accelerated the understanding and improvement of numerous crops. For non-model crops the lack of interdisciplinary research hinders their improvement. Grain amaranth is an ancient nutritious pseudocereal that has been domesticated three times in different regions of the Americas. We present and employ PopAmaranth, a population genetic genome browser, which provides an accessible representation of the genetic variation of the three grain amaranth species (A. hypochondriacus, A. cruentus, and A. caudatus) and two wild relatives (A. hybridus and A. quitensis) along the A. hypochondriacus reference sequence. We performed population-scale diversity and selection analysis from whole-genome sequencing data of 88 curated genetically and taxonomically unambiguously classified accessions. We employ the platform to show that genetic diversity in the water stress-related MIF1 gene declined during amaranth domestication and provide evidence for convergent saponin reduction between amaranth and quinoa. PopAmaranth is available through amaranthGDB at amaranthgdb.org/popamaranth.html.
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Affiliation(s)
| | - Markus G Stetter
- Dept. of Plant Sciences, University of Cologne, Cologne, Germany.,Cluster of Excellence on Plant Sciences, University of Cologne, Cologne, Germany
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