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Wu K, Xu C, Li T, Ma H, Gong J, Li X, Sun X, Hu X. Application of Nanotechnology in Plant Genetic Engineering. Int J Mol Sci 2023; 24:14836. [PMID: 37834283 PMCID: PMC10573821 DOI: 10.3390/ijms241914836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/20/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
The ever-increasing food requirement with globally growing population demands advanced agricultural practices to improve grain yield, to gain crop resilience under unpredictable extreme weather, and to reduce production loss caused by insects and pathogens. To fulfill such requests, genome engineering technology has been applied to various plant species. To date, several generations of genome engineering methods have been developed. Among these methods, the new mainstream technology is clustered regularly interspaced short palindromic repeats (CRISPR) with nucleases. One of the most important processes in genome engineering is to deliver gene cassettes into plant cells. Conventionally used systems have several shortcomings, such as being labor- and time-consuming procedures, potential tissue damage, and low transformation efficiency. Taking advantage of nanotechnology, the nanoparticle-mediated gene delivery method presents technical superiority over conventional approaches due to its high efficiency and adaptability in different plant species. In this review, we summarize the evolution of plant biomolecular delivery methods and discussed their characteristics as well as limitations. We focused on the cutting-edge nanotechnology-based delivery system, and reviewed different types of nanoparticles, preparation of nanomaterials, mechanism of nanoparticle transport, and advanced application in plant genome engineering. On the basis of established methods, we concluded that the combination of genome editing, nanoparticle-mediated gene transformation and de novo regeneration technologies can accelerate crop improvement efficiently in the future.
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Affiliation(s)
- Kexin Wu
- 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
| | - Changbin 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
| | - Tong Li
- 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
| | - 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
| | - Jinli Gong
- 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
| | - Xiaolong Li
- 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
| | - Xiaoli Hu
- 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 311300, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Hangzhou 311300, China
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Yan T, Hou Q, Wei X, Qi Y, Pu A, Wu S, An X, Wan X. Promoting genotype-independent plant transformation by manipulating developmental regulatory genes and/or using nanoparticles. PLANT CELL REPORTS 2023; 42:1395-1417. [PMID: 37311877 PMCID: PMC10447291 DOI: 10.1007/s00299-023-03037-2] [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: 02/01/2023] [Accepted: 05/22/2023] [Indexed: 06/15/2023]
Abstract
KEY MESSAGE This review summarizes the molecular basis and emerging applications of developmental regulatory genes and nanoparticles in plant transformation and discusses strategies to overcome the obstacles of genotype dependency in plant transformation. Plant transformation is an important tool for plant research and biotechnology-based crop breeding. However, Plant transformation and regeneration are highly dependent on species and genotype. Plant regeneration is a process of generating a complete individual plant from a single somatic cell, which involves somatic embryogenesis, root and shoot organogeneses. Over the past 40 years, significant advances have been made in understanding molecular mechanisms of embryogenesis and organogenesis, revealing many developmental regulatory genes critical for plant regeneration. Recent studies showed that manipulating some developmental regulatory genes promotes the genotype-independent transformation of several plant species. Besides, nanoparticles penetrate plant cell wall without external forces and protect cargoes from degradation, making them promising materials for exogenous biomolecule delivery. In addition, manipulation of developmental regulatory genes or application of nanoparticles could also bypass the tissue culture process, paving the way for efficient plant transformation. Applications of developmental regulatory genes and nanoparticles are emerging in the genetic transformation of different plant species. In this article, we review the molecular basis and applications of developmental regulatory genes and nanoparticles in plant transformation and discuss how to further promote genotype-independent plant transformation.
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Affiliation(s)
- Tingwei Yan
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Quancan Hou
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
| | - Xun Wei
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
| | - Yuchen Qi
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Aqing Pu
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Suowei Wu
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
- Beijing Engineering Laboratory of Main Crop Bio-Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio-Tech Breeding, Beijing Solidwill Sci-Tech Co. Ltd., Beijing, 100192, China
| | - Xueli An
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
- Beijing Engineering Laboratory of Main Crop Bio-Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio-Tech Breeding, Beijing Solidwill Sci-Tech Co. Ltd., Beijing, 100192, China
| | - Xiangyuan Wan
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China.
- Beijing Engineering Laboratory of Main Crop Bio-Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio-Tech Breeding, Beijing Solidwill Sci-Tech Co. Ltd., Beijing, 100192, China.
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Peng LH, Gu TW, Xu Y, Dad HA, Liu JX, Lian JZ, Huang LQ. Gene delivery strategies for therapeutic proteins production in plants: Emerging opportunities and challenges. Biotechnol Adv 2021; 54:107845. [PMID: 34627952 DOI: 10.1016/j.biotechadv.2021.107845] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/07/2021] [Accepted: 10/04/2021] [Indexed: 12/19/2022]
Abstract
There are sharply rising demands for pharmaceutical proteins, however shortcomings associated with traditional protein production methods are obvious. Genetic engineering of plant cells has gained importance as a new strategy for protein production. But most current genetic manipulation techniques for plant components, such as gene gun bombardment and Agrobacterium mediated transformation are associated with irreversible tissue damage, species-range limitation, high risk of integrating foreign DNAs into the host genome, and complicated handling procedures. Thus, there is urgent expectation for innovative gene delivery strategies with higher efficiency, fewer side effect, and more practice convenience. Materials based nanovectors have established themselves as novel vehicles for gene delivery to plant cells due to their large specific surface areas, adjustable particle sizes, cationic surface potentials, and modifiability. In this review, multiple techniques employed for plant cell-based genetic engineering and the applications of nanovectors are reviewed. Moreover, different strategies associated with the fusion of nanotechnology and physical techniques are outlined, which immensely augment delivery efficiency and protein yields. Finally, approaches that may overcome the associated challenges of these strategies to optimize plant bioreactors for protein production are discussed.
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Affiliation(s)
- Li-Hua Peng
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Ting-Wei Gu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yang Xu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Haseeb Anwar Dad
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jian-Xiang Liu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310027, China
| | - Jia-Zhang Lian
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lu-Qi Huang
- National Resource Centre for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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Zhao S, Wang F, Zhang Q, Zou J, Xie Z, Li K, Li J, Li B, He W, Chen J, He Y, Zhou Z. Transformation and functional verification of Cry5Aa in cotton. Sci Rep 2021; 11:2805. [PMID: 33531594 PMCID: PMC7854703 DOI: 10.1038/s41598-021-82495-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 01/12/2021] [Indexed: 11/09/2022] Open
Abstract
Most of the cotton bollworm-resistant genes applied in cotton are more than 20 years and they all belong to Cry1Ab/c family, but the insect-resistant effects of Cry5Aa on cotton were rarely reported. The possible risk of resistance is increasing. The study synthesized a novel bollworm-resistant gene Cry5Aa artificially based on preferences of cotton codon. The new gene was transferred to cotton through the method of pollen tube pathway. The transgenic strains were identified by kanamycin test in field and laboratory PCR analysis. Meanwhile, an insect resistance test was conducted by artificial bollworm feeding with transgenic leaves and GK19 was used as a control in this study. Results showed that rate of positive transgenic strains with kanamycin resistance in the first generation (T1), the second generation (T2) and the third generation (T3) respectively were 7.76%, 73.1% and 95.5%. However, PCR analysis showed that the positive strain rate in T1, T2 and T3 were 2.35%, 55.8% and 94.5%, respectively. The resistant assay of cotton bollworm showed that the mortality rate of the second, third and fourth instar larva feed by the transgenic cotton leaves, were 85.42%, 73.35% and 62.79%, respectively. There was a significant difference between transgenic plant of Cry5Aa and GK19 in insect resistance. Finally, we also conducted the further analysis of gene expression patterns, gene flow and the effect on non-target pest in the study. The results showed that Cry5Aa gene had less environmental impact, and Cry5Aa has been transferred successfully and expressed stably in cotton. Therefore, the novel bollworm resistance gene can partially replace the current insect-resistance gene of Lepidoptera insects.
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Affiliation(s)
- Shihao Zhao
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Feng Wang
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Qiuping Zhang
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Jiayi Zou
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Zhangshu Xie
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Kan Li
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Jingyi Li
- College of Agronomy, Hunan Agricultural University, Changsha, China
| | - Bo Li
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Wen He
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Jinxiang Chen
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China
| | - Yunxin He
- Hunan Institute of Cotton Science, Changde, China.
| | - Zhonghua Zhou
- Institute of Cotton Science, Hunan Agricultural University, Changsha, China.
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Ovule Development and in Planta Transformation of Paphiopedilum Maudiae by Agrobacterium-Mediated Ovary-Injection. Int J Mol Sci 2020; 22:ijms22010084. [PMID: 33374823 PMCID: PMC7795287 DOI: 10.3390/ijms22010084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 11/23/2022] Open
Abstract
In this paper, the development of the Paphiopedilum Maudiae embryo sac at different developmental stages after pollination was assessed by confocal laser scanning microscopy. The mature seeds of P. Maudiae consisted of an exopleura and a spherical embryo, but without an endosperm, while the inner integument cells were absorbed by the developing embryo. The P. Maudiae embryo sac exhibited an Allium type of development. The time taken for the embryo to develop to a mature sac was 45-50 days after pollination (DAP) and most mature embryo sacs had completed fertilization and formed zygotes by about 50–54 DAP. In planta transformation was achieved by injection of the ovaries by Agrobacterium, resulting in 38 protocorms or seedlings after several rounds of hygromycin selection, corresponding to 2, 7, 5, 1, 3, 4, 9, and 7 plantlets from Agrobacterium-mediated ovary-injection at 30, 35, 42, 43, 45, 48, 50, and 53 DAP, respectively. Transformation efficiency was highest at 50 DAP (2.54%), followed by 2.48% at 53 DAP and 2.45% at 48 DAP. Four randomly selected hygromycin-resistant plants were GUS-positive after PCR analysis. Semi-quantitative PCR and quantitative real-time PCR analysis revealed the expression of the hpt gene in the leaves of eight hygromycin-resistant seedlings following Agrobacterium-mediated ovary-injection at 30, 35, 42, 43, 45, 48, 50, and 53 DAP, while hpt expression was not detected in the control. The best time to inject P. Maudiae ovaries in planta with Agrobacterium is 48-53 DAP, which corresponds to the period of fertilization. This protocol represents the first genetic transformation protocol for any Paphiopedilum species and will allow for expanded molecular breeding programs to introduce useful and interesting genes that can expand its ornamental and horticulturally important characteristics.
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Hu Y, Mao B, Xia Y, Peng Y, Zhang D, Tang L, Shao Y, Li Y, Zhao B. Spike-Stalk Injection Method Causes Extensive Phenotypic and Genotypic Variations for Rice Germplasm. FRONTIERS IN PLANT SCIENCE 2020; 11:575373. [PMID: 33101344 PMCID: PMC7546333 DOI: 10.3389/fpls.2020.575373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Genetic diversities or favorable genes within distantly related species are the important resources for crop genetic improvement and germplasm innovation. Spike-Stalk injection method (SSI) has long been applied in rice genetic improvement by directly introducing genetic materials from non-mating donor species, while its inheritance patterns and the underlying mechanisms are poorly elucidated. In this study, a rice variant ERV1 with improved yield-related traits was screened out in the way of introducing genomic DNA of Oryza eichingeri (2n=24, CC genome) into RH78 (Oryza sativa L. 2n=24, AA genome) using SSI method. Genome-wide comparison revealed that the genomic heterozygosity of ERV1 was approximately 8-fold higher than RH78. Restriction-site associated DNA sequencing technology (RAD-seq) and association analysis of the ERV1 inbred F2 population identified 5 quantitative trait loci (QTLs) regions responsible for these yield-related traits, and found that genomic heterozygosity of ERV1 inbred lines was significantly lower than ERV1, while spontaneous mutation rate of the ERV1 inbred lines was significantly higher than ERV1. Our results preliminarily uncovered the inheritance patterns of SSI variant rice, and the potential genomic regions for traits changes, which yielded novel insights into the mechanisms of SSI method, and may accelerate our understanding of plant genome evolution, domestication, and speciation in nature.
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Affiliation(s)
- Yuanyi Hu
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- Molecular Breeding Laboratory, National Innovation Center of Saline-Alkali Tolerant Rice in Sanya, Sanya, China
| | - Bigang Mao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
| | - Yumei Xia
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
| | - Yan Peng
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- College of Agricultural, Hunan Agricultural University, Changsha, China
| | - Dan Zhang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
| | - Li Tang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
| | - Ye Shao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- College of Agricultural, Hunan Agricultural University, Changsha, China
| | - Yaokui Li
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- College of Agricultural, Hunan Agricultural University, Changsha, China
| | - Bingran Zhao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
- College of Agricultural, Hunan Agricultural University, Changsha, China
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Su Y, Guo A, Huang Y, Wang Y, Hua J. GhCIPK6a increases salt tolerance in transgenic upland cotton by involving in ROS scavenging and MAPK signaling pathways. BMC PLANT BIOLOGY 2020; 20:421. [PMID: 32928106 PMCID: PMC7488661 DOI: 10.1186/s12870-020-02548-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 07/12/2020] [Indexed: 05/17/2023]
Abstract
BACKGROUND Salt stress is one of the most damaging abiotic stresses in production of Upland cotton (Gossypium hirsutum). Upland cotton is defined as a medium salt-tolerant crop. Salinity hinders root development, shoots growth, and reduces the fiber quality. RESULTS Our previous study verified a GhCIPK6a gene response to salt stress in G. hirsutum. The homologs of GhCIPK6a were analyzed in A2 (G. arboreum), D5 (G. raimondii), and AD1 (G. hirsutum) genomes. GhCIPK6a localized to the vacuole and cell membrane. The GhCBL1-GhCIPK6a and GhCBL8-GhCIPK6a complexes localized to the nucleus and cytomembrane. Overexpression of GhCIPK6a enhanced expression levels of co-expressed genes induced by salt stress, which scavenged ROS and involved in MAPK signaling pathways verified by RNA-seq analysis. Water absorption capacity and cell membrane stability of seeds from GhCIPK6a overexpressed lines was higher than that of wild-type seeds during imbibed germination stage. The seed germination rates and seedling field emergence percentages of GhCIPK6a overexpressed lines were higher than that of control line under salt stress. Moreover, overexpressing of GhCIPK6a in cotton increased lint percentage, and fiber length uniformity under salt stress. CONCLUSIONS We verified the function of GhCIPK6a by transformation and RNA-seq analysis. GhCIPK6a overexpressed lines exhibited higher tolerance to abiotic stresses, which functioned by involving in ROS scavenging and MAPK pathways. Therefore, GhCIPK6a has the potential for cotton breeding to improve stress-tolerance.
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Affiliation(s)
- Ying Su
- Laboratory of Cotton Genetics; Genomics and Breeding / Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education /Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, No. 2, Yuanmingyuan West Rd, Haidian District, Beijing, 100193 China
| | - Anhui Guo
- Laboratory of Cotton Genetics; Genomics and Breeding / Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education /Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, No. 2, Yuanmingyuan West Rd, Haidian District, Beijing, 100193 China
| | - Yi Huang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062 Hubei China
| | - Yumei Wang
- Research Institute of Cash Crops, Hubei Academy of Agricultural Sciences, Wuhan, 430064 Hubei China
| | - Jinping Hua
- Laboratory of Cotton Genetics; Genomics and Breeding / Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Ministry of Education /Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, No. 2, Yuanmingyuan West Rd, Haidian District, Beijing, 100193 China
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Ramkumar TR, Lenka SK, Arya SS, Bansal KC. A Short History and Perspectives on Plant Genetic Transformation. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2020; 2124:39-68. [PMID: 32277448 DOI: 10.1007/978-1-0716-0356-7_3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Plant genetic transformation is an important technological advancement in modern science, which has not only facilitated gaining fundamental insights into plant biology but also started a new era in crop improvement and commercial farming. However, for many crop plants, efficient transformation and regeneration still remain a challenge even after more than 30 years of technical developments in this field. Recently, FokI endonuclease-based genome editing applications in plants offered an exciting avenue for augmenting crop productivity but it is mainly dependent on efficient genetic transformation and regeneration, which is a major roadblock for implementing genome editing technology in plants. In this chapter, we have outlined the major historical developments in plant genetic transformation for developing biotech crops. Overall, this field needs innovations in plant tissue culture methods for simplification of operational steps for enhancing the transformation efficiency. Similarly, discovering genes controlling developmental reprogramming and homologous recombination need considerable attention, followed by understanding their role in enhancing genetic transformation efficiency in plants. Further, there is an urgent need for exploring new and low-cost universal delivery systems for DNA/RNA and protein into plants. The advancements in synthetic biology, novel vector systems for precision genome editing and gene integration could potentially bring revolution in crop-genetic potential enhancement for a sustainable future. Therefore, efficient plant transformation system standardization across species holds the key for translating advances in plant molecular biology to crop improvement.
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Affiliation(s)
- Thakku R Ramkumar
- Agronomy Department, IFAS, University of Florida, Gainesville, FL, USA
| | - Sangram K Lenka
- TERI-Deakin NanoBiotechnology Centre, The Energy and Resources Institute, New Delhi, India
| | - Sagar S Arya
- TERI-Deakin NanoBiotechnology Centre, The Energy and Resources Institute, New Delhi, India
| | - Kailash C Bansal
- TERI-Deakin NanoBiotechnology Centre, The Energy and Resources Institute, New Delhi, India.
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Paes de Melo B, Lourenço-Tessutti IT, Morgante CV, Santos NC, Pinheiro LB, de Jesus Lins CB, Silva MCM, Macedo LLP, Fontes EPB, Grossi-de-Sa MF. Soybean Embryonic Axis Transformation: Combining Biolistic and Agrobacterium-Mediated Protocols to Overcome Typical Complications of In Vitro Plant Regeneration. FRONTIERS IN PLANT SCIENCE 2020; 11:1228. [PMID: 32903423 PMCID: PMC7434976 DOI: 10.3389/fpls.2020.01228] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/27/2020] [Indexed: 05/09/2023]
Abstract
The first successful attempt to generate genetically modified plants expressing a transgene was preformed via T-DNA-based gene transfer employing Agrobacterium tumefaciens-mediated genetic transformation. Limitations over infectivity and in vitro tissue culture led to the development of other DNA delivery systems, such as the biolistic method. Herein, we developed a new one-step protocol for transgenic soybean recovery by combining the two different transformation methods. This protocol comprises the following steps: agrobacterial preparation, seed sterilization, soybean embryo excision, shoot-cell injury by tungsten-microparticle bombardment, A. tumefaciens-mediated transformation, embryo co-cultivation in vitro, and selection of transgenic plants. This protocol can be completed in approximately 30-40 weeks. The average efficiency of producing transgenic soybean germlines using this protocol was 9.84%, similar to other previously described protocols. However, we introduced a more cost-effective, more straightforward and shorter methodology for transgenic plant recovery, which allows co-cultivation and plant regeneration in a single step, decreasing the chances of contamination and making the manipulation easier. Finally, as a hallmark, our protocol does not generate plant chimeras, in contrast to traditional plant regeneration protocols applied in other Agrobacterium-mediated transformation methods. Therefore, this new approach of plant transformation is applicable for studies of gene function and the production of transgenic cultivars carrying different traits for precision-breeding programs.
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Affiliation(s)
- Bruno Paes de Melo
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa (UFV), Viçosa, Brazil
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology in Plant-Pest Interactions (INCTIPP), BIOAGRO, Viçosa, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Isabela Tristan Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Carolina Vianna Morgante
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Naiara Cordeiro Santos
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Luanna Bezerra Pinheiro
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
- Genomic Sciences and Biotechnology PPG, Universidade Católica de Brasília (UCB), Brasilia, Brazil
| | - Camila Barrozo de Jesus Lins
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Maria Cristina Matar Silva
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Leonardo Lima Pepino Macedo
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
| | - Elizabeth Pacheco Batista Fontes
- Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa (UFV), Viçosa, Brazil
- National Institute of Science and Technology in Plant-Pest Interactions (INCTIPP), BIOAGRO, Viçosa, Brazil
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, Brasilia, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasilia, Brazil
- Genomic Sciences and Biotechnology PPG, Universidade Católica de Brasília (UCB), Brasilia, Brazil
- *Correspondence: Maria Fatima Grossi-de-Sa,
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Ji J, Zhang C, Sun Z, Wang L, Duanmu D, Fan Q. Genome Editing in Cowpea Vigna unguiculata Using CRISPR-Cas9. Int J Mol Sci 2019; 20:E2471. [PMID: 31109137 PMCID: PMC6566367 DOI: 10.3390/ijms20102471] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/06/2019] [Accepted: 05/13/2019] [Indexed: 12/19/2022] Open
Abstract
Cowpea (Vigna unguiculata) is widely cultivated across the world. Due to its symbiotic nitrogen fixation capability and many agronomically important traits, such as tolerance to low rainfall and low fertilization requirements, as well as its high nutrition and health benefits, cowpea is an important legume crop, especially in many semi-arid countries. However, research in Vigna unguiculata is dramatically hampered by the lack of mutant resources and efficient tools for gene inactivation in vivo. In this study, we used clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated protein 9 (Cas9). We applied the CRISPR/Cas9-mediated genome editing technology to efficiently disrupt the representative symbiotic nitrogen fixation (SNF) gene in Vigna unguiculata. Our customized guide RNAs (gRNAs) targeting symbiosis receptor-like kinase (SYMRK) achieved ~67% mutagenic efficiency in hairy-root-transformed plants, and nodule formation was completely blocked in the mutants with both alleles disrupted. Various types of mutations were observed near the PAM region of the respective gRNA. These results demonstrate the applicability of the CRISPR/Cas9 system in Vigna unguiculata, and therefore should significantly stimulate functional genomics analyses of many important agronomical traits in this unique crop legume.
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Affiliation(s)
- Jie Ji
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Chunyang Zhang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Zhongfeng Sun
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Longlong Wang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Deqiang Duanmu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Qiuling Fan
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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11
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Abstract
Although many gene transfer methods have been employed for successfully obtaining transgenic cotton, the major constraint in cotton improvement is the limitation of genotype because the majority of transgenic methods require plant regeneration from a single transformed cell which is limited by cotton tissue culture. Comparing with other plant species, it is difficult to induce plant regeneration from cotton; currently, only a limited number of cotton cultivars can be cultured for obtaining regenerated plants. Thus, developing a simple and genotype-independent genetic transformation method is particularly interested for cotton. In this chapter, we present a simple, cost-efficient, and genotype-independent cotton transformation method - pollen tube pathway-mediated transformation. This method uses pollen tube pathway to deliver transgene into cotton embryo sacs and then insert foreign genes into cotton genome. There are three major steps for pollen tube pathway-mediated genetic transformation, which include injection of foreign genes into pollen tube, integration of foreign genes into plant genome, and selection of transgenic plants.
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Affiliation(s)
- Min Wang
- Beijing Key Laboratory of Plant Resources Research and Development, Beijing Technology and Business University, Beijing, China
| | - Runrun Sun
- Henan Collaborative Innovation Center of Modern Biological Breeding, Henan Institute of Sciences and Technology, Xinxiang, Henan, China
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC, USA.
| | - Qinglian Wang
- Henan Collaborative Innovation Center of Modern Biological Breeding, Henan Institute of Sciences and Technology, Xinxiang, Henan, China
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12
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Zhang B. Transgenic Cotton: From Biotransformation Methods to Agricultural Application. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2018; 1902:3-16. [PMID: 30543057 DOI: 10.1007/978-1-4939-8952-2_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Transgenic cotton is among the first transgenic plants commercially adopted around the world. Since it was first introduced into the field in the middle of the 1990s, transgenic cotton has been quickly adopted by cotton farmers in many developed and developing countries. Transgenic cotton has offered many important environmental, social, and economic benefits, including reduced usage of pesticides, indirect increase of yield, minimizing environmental pollution, and reducing labor and cost. Agrobacterium-mediated genetic transformation method is the major method for obtaining transgenic cotton. However, pollen tube pathway-mediated method is also used, particularly by scientists in China, to breed commercial transgenic cotton. Although transgenic cotton plants with disease resistance, abiotic stress tolerance, and improved fiber quality have been developed in the past decades, insect-resistant and herbicide-tolerant cottons are the two dominant cottons in transgenic cotton market.
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Affiliation(s)
- Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC, USA.
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Han Q, Wang Z, He Y, Xiong Y, Lv S, Li S, Zhang Z, Qiu D, Zeng H. Transgenic Cotton Plants Expressing the HaHR3 Gene Conferred Enhanced Resistance to Helicoverpa armigera and Improved Cotton Yield. Int J Mol Sci 2017; 18:E1874. [PMID: 28867769 PMCID: PMC5618523 DOI: 10.3390/ijms18091874] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 08/15/2017] [Accepted: 08/26/2017] [Indexed: 01/01/2023] Open
Abstract
RNA interference (RNAi) has been developed as an efficient technology. RNAi insect-resistant transgenic plants expressing double-stranded RNA (dsRNA) that is ingested into insects to silence target genes can affect the viability of these pests or even lead to their death. HaHR3, a molt-regulating transcription factor gene, was previously selected as a target expressed in bacteria and tobacco plants to control Helicoverpa armigera by RNAi technology. In this work, we selected the dsRNA-HaHR3 fragment to silence HaHR3 in cotton bollworm for plant mediated-RNAi research. A total of 19 transgenic cotton lines expressing HaHR3 were successfully cultivated, and seven generated lines were used to perform feeding bioassays. Transgenic cotton plants expressing dsHaHR3 were shown to induce high larval mortality and deformities of pupation and adult eclosion when used to feed the newly hatched larvae, and 3rd and 5th instar larvae of H. armigera. Moreover, HaHR3 transgenic cotton also demonstrated an improved cotton yield when compared with controls.
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Affiliation(s)
- Qiang Han
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Zhenzhen Wang
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Yunxin He
- Cotton Science Research Institute of Hunan Province, Changde 415101, Hunan, China.
| | - Yehui Xiong
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Shun Lv
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Shupeng Li
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Zhigang Zhang
- Cotton Science Research Institute of Hunan Province, Changde 415101, Hunan, China.
| | - Dewen Qiu
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Hongmei Zeng
- The State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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14
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Shang Y, Yang F, Schulman AH, Zhu J, Jia Y, Wang J, Zhang XQ, Jia Q, Hua W, Yang J, Li C. Gene Deletion in Barley Mediated by LTR-retrotransposon BARE. Sci Rep 2017; 7:43766. [PMID: 28252053 PMCID: PMC5333098 DOI: 10.1038/srep43766] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/27/2017] [Indexed: 11/13/2022] Open
Abstract
A poly-row branched spike (prbs) barley mutant was obtained from soaking a two-rowed barley inflorescence in a solution of maize genomic DNA. Positional cloning and sequencing demonstrated that the prbs mutant resulted from a 28 kb deletion including the inflorescence architecture gene HvRA2. Sequence annotation revealed that the HvRA2 gene is flanked by two LTR (long terminal repeat) retrotransposons (BARE) sharing 89% sequence identity. A recombination between the integrase (IN) gene regions of the two BARE copies resulted in the formation of an intact BARE and loss of HvRA2. No maize DNA was detected in the recombination region although the flanking sequences of HvRA2 gene showed over 73% of sequence identity with repetitive sequences on 10 maize chromosomes. It is still unknown whether the interaction of retrotransposons between barley and maize has resulted in the recombination observed in the present study.
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Affiliation(s)
- Yi Shang
- National Barley Improvement Centre, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China
| | - Fei Yang
- Department of Genetics and Cell Biology, Yangtze University, Jingzhou, Hubei 434023, China
- Western Barley Genetics Alliance, Murdoch University, 90 South Street, Murdoch WA 6150, Australia
| | - Alan H. Schulman
- Luke/BI Plant Genomics Lab, Institute of Biotechnology and Viikki Plant Science Centre, University of Helsinki, FIN-00014 Helsinki, Finland
- Green Technology, Natural Resources Institute Finland (Luke), Viikinkaari 1, FIN-00790 Helsinki, Finland
| | - Jinghuan Zhu
- National Barley Improvement Centre, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China
| | - Yong Jia
- Western Barley Genetics Alliance, Murdoch University, 90 South Street, Murdoch WA 6150, Australia
| | - Junmei Wang
- National Barley Improvement Centre, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China
| | - Xiao-Qi Zhang
- Western Barley Genetics Alliance, Murdoch University, 90 South Street, Murdoch WA 6150, Australia
| | - Qiaojun Jia
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wei Hua
- National Barley Improvement Centre, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China
| | - Jianming Yang
- National Barley Improvement Centre, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China
| | - Chengdao Li
- Department of Genetics and Cell Biology, Yangtze University, Jingzhou, Hubei 434023, China
- Western Barley Genetics Alliance, Murdoch University, 90 South Street, Murdoch WA 6150, Australia
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15
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Li S, Cong Y, Liu Y, Wang T, Shuai Q, Chen N, Gai J, Li Y. Optimization of Agrobacterium-Mediated Transformation in Soybean. FRONTIERS IN PLANT SCIENCE 2017; 8:246. [PMID: 28286512 PMCID: PMC5323423 DOI: 10.3389/fpls.2017.00246] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 02/09/2017] [Indexed: 05/20/2023]
Abstract
High transformation efficiency is a prerequisite for study of gene function and molecular breeding. Agrobacterium tumefaciens-mediated transformation is a preferred method in many plants. However, the transformation efficiency in soybean is still low. The objective of this study is to optimize Agrobacterium-mediated transformation in soybean by improving the infection efficiency of Agrobacterium and regeneration efficiency of explants. Firstly, four factors affecting Agrobacterium infection efficiency were investigated by estimation of the rate of GUS transient expression in soybean cotyledonary explants, including Agrobacterium concentrations, soybean explants, Agrobacterium suspension medium, and co-cultivation time. The results showed that an infection efficiency of over 96% was achieved by collecting the Agrobacterium at a concentration of OD650 = 0.6, then using an Agrobacterium suspension medium containing 154.2 mg/L dithiothreitol to infect the half-seed cotyledonary explants (from mature seeds imbibed for 1 day), and co-cultured them for 5 days. The Agrobacterium infection efficiencies for soybean varieties Jack Purple and Tianlong 1 were higher than the other six varieties. Secondly, the rates of shoot elongation were compared among six different concentration combinations of gibberellic acid (GA3) and indole-3-acetic acid (IAA). The shoot elongation rate of 34 and 26% was achieved when using the combination of 1.0 mg/L GA3 and 0.1 mg/L IAA for Jack Purple and Tianlong 1, respectively. This rate was higher than the other five concentration combinations of GA3 and IAA, with an 18 and 11% increase over the original laboratory protocol (a combination of 0.5 mg/L GA3 and 0.1 mg/L IAA), respectively. The transformation efficiency was 7 and 10% for Jack Purple and Tianlong 1 at this optimized hormone concentration combination, respectively, which was 2 and 6% higher than the original protocol, respectively. Finally, GUS histochemical staining, PCR, herbicide (glufosinate) painting, and QuickStix Kit for Liberty Link (bar) were used to verify the positive transgenic plants, and absolute quantification PCR confirmed the exogenous gene existed as one to three copies in the soybean genome. This study provides an improved protocol for Agrobacterium-mediated transformation in soybean and a useful reference to improve the transformation efficiency in other plant species.
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Affiliation(s)
| | | | | | | | | | | | | | - Yan Li
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), National Center for Soybean Improvement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural UniversityNanjing, China
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16
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Yang L, Cui G, Wang Y, Hao Y, Du J, Zhang H, Wang C, Zhang H, Wu SB, Sun Y. Expression of Foreign Genes Demonstrates the Effectiveness of Pollen-Mediated Transformation in Zea mays. FRONTIERS IN PLANT SCIENCE 2017; 8:383. [PMID: 28377783 PMCID: PMC5359326 DOI: 10.3389/fpls.2017.00383] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/06/2017] [Indexed: 05/05/2023]
Abstract
Plant genetic transformation has arguably been the core of plant improvement in recent decades. Efforts have been made to develop in planta transformation systems due to the limitations present in the tissue-culture-based methods. Herein, we report an improved in planta transformation system, and provide the evidence of reporter gene expression in pollen tube, embryos and stable transgenicity of the plants following pollen-mediated plant transformation with optimized sonication treatment of pollen. The results showed that the aeration at 4°C treatment of pollen grains in sucrose prior to sonication significantly improved the pollen viability leading to improved kernel set and transformation efficiency. Scanning electron microscopy observation revealed that the removal of operculum covering pollen pore by ultrasonication might be one of the reasons for the pollen grains to become competent for transformation. Evidences have shown that the eGfp gene was expressed in the pollen tube and embryos, and the Cry1Ac gene was detected in the subsequent T1 and T2 progenies, suggesting the successful transfer of the foreign genes to the recipient plants. The Southern blot analysis of Cry1Ac gene in T2 progenies and PCR-identified Apr gene segregation in T2 seedlings confirmed the stable inheritance of the transgene. The outcome illustrated that the pollen-mediated genetic transformation system can be widely applied in the plant improvement programs with apparent advantages over tissue-culture-based transformation methods.
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Affiliation(s)
- Liyan Yang
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
- College of Life Science, Shanxi Normal UniversityLinfen, China
| | - Guimei Cui
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Yixue Wang
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Yaoshan Hao
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Jianzhong Du
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Hongmei Zhang
- Maize Research Institute, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Changbiao Wang
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Huanhuan Zhang
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
| | - Shu-Biao Wu
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
- School of Environmental and Rural Science, University of New England, ArmidaleNSW, Australia
- *Correspondence: Yi Sun, Shu-Biao Wu,
| | - Yi Sun
- Biotechnology Research Center, Shanxi Academy of Agricultural SciencesTaiyuan, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau, Ministry of AgricultureTaiyuan, China
- *Correspondence: Yi Sun, Shu-Biao Wu,
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18
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Silva CR, Monnerat R, Lima LM, Martins ÉS, Melo Filho PA, Pinheiro MP, Santos RC. Stable integration and expression of a cry1Ia gene conferring resistance to fall armyworm and boll weevil in cotton plants. PEST MANAGEMENT SCIENCE 2016; 72:1549-1557. [PMID: 26558603 DOI: 10.1002/ps.4184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 10/27/2015] [Accepted: 11/04/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Boll weevil is a serious pest of cotton crop. Effective control involves applications of chemical insecticides, increasing the cost of production and environmental pollution. The current genetically modified Bt crops have allowed great benefits to farmers but show activity limited to lepidopteran pests. This work reports on procedures adopted for integration and expression of a cry transgene conferring resistance to boll weevil and fall armyworm by using molecular tools. RESULTS Four Brazilian cotton cultivars were microinjected with a minimal linear cassette generating 1248 putative lines. Complete gene integration was found in only one line (T0-34) containing one copy of cry1Ia detected by Southern blot. Protein was expressed in high concentration at 45 days after emergence (dae), decreasing by approximately 50% at 90 dae. Toxicity of the cry protein was demonstrated in feeding bioassays revealing 56.7% mortality to boll weevil fed buds and 88.1% mortality to fall armyworm fed leaves. A binding of cry1Ia antibody was found in the midgut of boll weevils fed on T0-34 buds in an immunodetection assay. CONCLUSION The gene introduced into plants confers resistance to boll weevil and fall armyworm. Transmission of the transgene occurred normally to T1 progeny. All plants showed phenotypically normal growth, with fertile flowers and abundant seeds. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Carliane Rc Silva
- Federal Rural University of Pernambuco, Dois Irmãos, Recife, PE, Brazil
| | - Rose Monnerat
- Embrapa - Genetic Resources and Biotechnology (CENARGEN), SAIN, Brasília, DF, Brazil
| | - Liziane M Lima
- Embrapa - Cotton (Embrapa Algodão), Centenário, Campina Grande, PB, Brazil
| | - Érica S Martins
- Embrapa - Genetic Resources and Biotechnology (CENARGEN), SAIN, Brasília, DF, Brazil
| | | | | | - Roseane C Santos
- Embrapa - Cotton (Embrapa Algodão), Centenário, Campina Grande, PB, Brazil
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19
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Kalbande BB, Patil AS. Plant tissue culture independent Agrobacterium tumefaciens mediated In-planta transformation strategy for upland cotton ( Gossypium hirsutum). J Genet Eng Biotechnol 2016; 14:9-18. [PMID: 30647592 PMCID: PMC6299899 DOI: 10.1016/j.jgeb.2016.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/21/2016] [Accepted: 05/01/2016] [Indexed: 11/17/2022]
Abstract
A new method of transgenic development called "In-planta" transformation method, where Agrobacterium is used to infect the plantlets but the steps of in vitro regeneration of plants is totally avoided. In this study, we have reported a simple In-planta method for efficient transformation of diploid cotton Gossypium hirsutum cv LRK-516 Anjali using Agrobacterium tumefaciens EHA-105 harbouring recombinant binary vector plasmid pBinAR with Arabidopsis At-NPR1 gene. Four day old plantlets were used for transformation. A vertical cut was made at the junction of cotyledonary leaves, moderately bisecting the shoot tip and exposing meristem cells at apical meristem. This site was infected with Agrobacterium inoculum. The transgenic events obtained were tested positive for the presence of At-NPR1 gene with promoter nptII gene. They are also tested negative for vector backbone integration and Agrobacterium contamination in T0 events. With this method a transformation frequency of 6.89% was reported for the cv LRK-516.
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20
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de Oliveira RS, Oliveira-Neto OB, Moura HFN, de Macedo LLP, Arraes FBM, Lucena WA, Lourenço-Tessutti IT, de Deus Barbosa AA, da Silva MCM, Grossi-de-Sa MF. Transgenic Cotton Plants Expressing Cry1Ia12 Toxin Confer Resistance to Fall Armyworm (Spodoptera frugiperda) and Cotton Boll Weevil (Anthonomus grandis). FRONTIERS IN PLANT SCIENCE 2016; 7:165. [PMID: 26925081 PMCID: PMC4759279 DOI: 10.3389/fpls.2016.00165] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 01/31/2016] [Indexed: 05/21/2023]
Abstract
Gossypium hirsutum (commercial cooton) is one of the most economically important fibers sources and a commodity crop highly affected by insect pests and pathogens. Several transgenic approaches have been developed to improve cotton resistance to insect pests, through the transgenic expression of different factors, including Cry toxins, proteinase inhibitors, and toxic peptides, among others. In the present study, we developed transgenic cotton plants by fertilized floral buds injection (through the pollen-tube pathway technique) using an DNA expression cassette harboring the cry1Ia12 gene, driven by CaMV35S promoter. The T0 transgenic cotton plants were initially selected with kanamycin and posteriorly characterized by PCR and Southern blot experiments to confirm the genetic transformation. Western blot and ELISA assays indicated the transgenic cotton plants with higher Cry1Ia12 protein expression levels to be further tested in the control of two major G. hirsutum insect pests. Bioassays with T1 plants revealed the Cry1Ia12 protein toxicity on Spodoptera frugiperda larvae, as evidenced by mortality up to 40% and a significant delay in the development of the target insects compared to untransformed controls (up to 30-fold). Also, an important reduction of Anthonomus grandis emerging adults (up to 60%) was observed when the insect larvae were fed on T1 floral buds. All the larvae and adult insect survivors on the transgenic lines were weaker and significantly smaller compared to the non-transformed plants. Therefore, this study provides GM cotton plant with simultaneous resistance against the Lepidopteran (S. frugiperda), and the Coleopteran (A. grandis) insect orders, and all data suggested that the Cry1Ia12 toxin could effectively enhance the cotton transgenic plants resistance to both insect pests.
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Affiliation(s)
- Raquel S. de Oliveira
- Catholic University of BrasiliaBrasilia, Brazil
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
| | - Osmundo B. Oliveira-Neto
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
- UNIEURO – University CenterBrasília, Brazil
| | - Hudson F. N. Moura
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
- Biology Institute, Brasilia UniversityBrasilia, Brazil
| | - Leonardo L. P. de Macedo
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
| | - Fabrício B. M. Arraes
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
- Federal University of Rio Grande do SulPorto Alegre, Brazil
| | - Wagner A. Lucena
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
- Embrapa CottonCampina Grande, Brazil
| | - Isabela T. Lourenço-Tessutti
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
| | - Aulus A. de Deus Barbosa
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
| | - Maria C. M. da Silva
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
| | - Maria F. Grossi-de-Sa
- Catholic University of BrasiliaBrasilia, Brazil
- Pest-Plant Molecular Interaction Laboratory, Embrapa Genetic Resources and Biotechnology, Brazilian Research Agricultural CorporationBrasilia, Brazil
- *Correspondence: Maria F. Grossi-de-Sa,
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Malik W, Abid MA, Cheema HMN, Khan AA, Iqbal MZ, Qayyum A, Hanif M, Bibi N, Yuan SN, Yasmeen A, Mahmood A, Ashraf J. From Qutn to Bt cotton: Development, adoption and prospects. A review. CYTOL GENET+ 2015. [DOI: 10.3103/s0095452715060055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Peng Y, Hu Y, Mao B, Xiang H, Shao Y, Pan Y, Sheng X, Li Y, Ni X, Xia Y, Zhang G, Yuan L, Quan Z, Zhao B. Genetic analysis for rice grain quality traits in the YVB stable variant line using RAD-seq. Mol Genet Genomics 2015; 291:297-307. [PMID: 26334612 DOI: 10.1007/s00438-015-1104-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 08/12/2015] [Indexed: 12/01/2022]
Abstract
The future of rice breeding will likely be built on the basis of the further utilization of heterosis between elite cultivars and genetic resources from distant subspecies of rice. Previous studies have proved that exogenous genomic DNA transformation methods can be used to transfer genetic information from distant relatives (donor) into cultivated rice (recipient). However, the mechanism underlying this form of genetic transfer is poorly characterized, and the genes that cause the phenotypic changes in these variants are typically difficult to identify. This study examined YVB, a stable variant line with greatly improved grain quality traits that was derived from an indica variety (V20B) by transferring genomic DNA of O.minuta through the "spike-stalk injection method (SIM)". We used restriction-site associated DNA sequencing technology (RAD-seq) to evaluate a population of BC1F5 backcross lines (YVB × V20B); the RAD-seq data were used to construct a genetic linkage map with high-density SNPs for use in association analysis exploring genotype-phenotype relationships at the whole-genome level. A total of 17 quantitative trait loci (QTLs) for rice quality traits were mapped to chromosomes 3, 5, 6, 8, and 9. 8 major QTLs controlling different phenotypic variations were mapped to the same region of chromosome 5. This region contained the GS5 gene for grain weight and the qSW5/GW5 gene for grain width. This study provides new resources and insights into the molecular mechanisms of grain trait phenotypic variation and the transmission of genetic information via the introduction of genomic DNA to a distantly related crop relative species.
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Affiliation(s)
- Yan Peng
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China.
| | - Yuanyi Hu
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China.
| | - Bigang Mao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China
| | - Haitao Xiang
- Key Lab of Genomics, BGI-Shenzhen, Chinese Ministry of Agriculture, Shenzhen, 518083, China
| | - Ye Shao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China
| | - Yinlin Pan
- Longping Branch, Graduate School of Central South University, Changsha, 410125, China
| | - Xiabing Sheng
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China
| | - Yaokui Li
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China
| | - Xuemei Ni
- Key Lab of Genomics, BGI-Shenzhen, Chinese Ministry of Agriculture, Shenzhen, 518083, China
| | - Yumei Xia
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China
| | - Gengyun Zhang
- Key Lab of Genomics, BGI-Shenzhen, Chinese Ministry of Agriculture, Shenzhen, 518083, China
| | - Longping Yuan
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China
| | - Zhiwu Quan
- Key Lab of Genomics, BGI-Shenzhen, Chinese Ministry of Agriculture, Shenzhen, 518083, China.
| | - Bingran Zhao
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, 736 Yuanda Erlu, Changsha, 410125, China.
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Carlsson AS, Zhu LH, Andersson M, Hofvander P. Platform crops amenable to genetic engineering – a requirement for successful production of bio-industrial oils through genetic engineering. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.12.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Liu Z, Zhu Z, Zhang T. Development of transgenic CryIA(c) + GNA cotton plants via pollen tube pathway method confers resistance to Helicoverpa armigera and Aphis gossypii Glover. Methods Mol Biol 2013; 958:199-210. [PMID: 23143495 DOI: 10.1007/978-1-62703-212-4_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Elite cotton cultivar Sumian16 was transformed with p7RPSBK-mGNA-NPTII containing Bt (CryIA(c)), Galanthus nivalis agglutinin (GNA) resistance genes and selectable marker NptII gene via the pollen tube pathway method and two fertile transgenic Bt + GNA plants were obtained in the present study. The integration and expression of the Bt and GNA genes were confirmed by molecular biology techniques and insect bioassays. Insect bioassays showed that the transformed plants were highly toxic to bollworm larvae as well as obviously retarding development of aphid populations. PCR analyses and identification of resistance to Kanamycin and bollworm showed that the resistance to bollworm for the two transgenic plants was dominantly inherited in a Mendelian manner and the two resistance genes and selectable marker co-segregated from primary transformed parents to the first self-fertilized progeny plants.
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Affiliation(s)
- Zhi Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing, PR China
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Abstract
Although many gene transfer methods have been employed for successfully obtaining transgenic cotton, the major constraint in cotton improvement is the limitation of genotype because the majority of transgenic methods require plant regeneration from a single transformed cell which is limited by cotton tissue culture. Comparing with other plant species, it is difficult to induce plant regeneration from cotton; currently, only a limited number of cotton cultivars can be cultured for obtaining regenerated plants. Thus, development of a simple and genotype-independent genetic transformation method is particularly important for cotton community. In this chapter, we present a simple, cost-efficient, and genotype-independent cotton transformation method-pollen tube pathway-mediated transformation. This method uses pollen tube pathway to deliver transgene into cotton embryo sacs and then insert foreign genes into cotton genome. There are three major steps for pollen tube pathway-mediated genetic transformation, which include injection of -foreign genes into pollen tube, integration of foreign genes into plant genome, and selection of transgenic plants.
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Affiliation(s)
- Min Wang
- Beijing Key Laboratory of Plant Resources Research and Development, Department of Biotechnology, School of Science, Beijing Technology and Business University, Haidian District, Beijing, People's Republic of China.
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Zhang B. Transgenic cotton: from biotransformation methods to agricultural application. Methods Mol Biol 2013; 958:3-15. [PMID: 23143479 DOI: 10.1007/978-1-62703-212-4_1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Transgenic cotton is among the first transgenic plants commercially adopted around the world. Since it was first introduced into the field in the middle of 1990s, transgenic cotton has been quickly adopted by cotton farmers in many developed and developing countries. Transgenic cotton has offered many important environmental, social, and economic benefits, including reduced usage of pesticides, indirect increase of yield, minimizing environmental pollution, and reducing labor and cost. Agrobacterium-mediated genetic transformation method is the major method for obtaining transgenic cotton. However, pollen tube pathway-mediated method is also used, particularly by scientists in China, to breed commercial transgenic cotton. Although transgenic cotton plants with disease-resistance, abiotic stress tolerance, and improved fiber quality have been developed in the past decades, insect-resistant and herbicide-tolerant cotton are the two dominant transgenic cottons in the transgenic cotton market.
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Affiliation(s)
- Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC, USA.
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Chakravarthy VSK, Reddy TP, Reddy VD, Rao KV. Current status of genetic engineering in cotton(Gossypium hirsutum L): an assessment. Crit Rev Biotechnol 2012. [DOI: 10.3109/07388551.2012.743502] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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29
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Physical methods for genetic plant transformation. Phys Life Rev 2012; 9:308-45. [DOI: 10.1016/j.plrev.2012.06.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Accepted: 06/04/2012] [Indexed: 01/27/2023]
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30
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Chovelon V, Restier V, Giovinazzo N, Dogimont C, Aarrouf J. Histological study of organogenesis in Cucumis melo L. after genetic transformation: why is it difficult to obtain transgenic plants? PLANT CELL REPORTS 2011; 30:2001-11. [PMID: 21706229 DOI: 10.1007/s00299-011-1108-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 05/27/2011] [Accepted: 06/08/2011] [Indexed: 05/06/2023]
Abstract
Melon (Cucumis melo L.) is widely considered as a recalcitrant species for genetic transformation. In this study, we developed different regeneration and transformation protocols and we examined the regeneration process at different steps by histological studies. The highest regeneration rate (1.13 ± 0.02 plants per explant) was obtained using cotyledon explants of the 'Védrantais' genotype on Murashige and Skoog (MS) medium supplemented with 0.2 mg/l 6-benzylaminopurine (BAP) and 0.2 mg/l dimethylallylaminopurine (2-iP). Agrobacterium tumefaciens-mediated transformations with the uidA reporter gene were realized on cotyledon explants cultivated in these conditions: 70-90% of explants expressed a transient GUS activity during the early stages of regeneration, however, only few transgenic plants were obtained (1.8-4.5% of stable transformation with the GV2260pBI101 strain). These results revealed a low capacity of melon GUS-positive cells to regenerate transgenic plants. To evaluate the influence of the Agrobacterium infection on plant regeneration, histological analyses were conducted on explants 2, 7, 15, and 28 days after co-culture with the GV2260pBI101 strain. Genetic transformation occurred in epidermal and sub-epidermal cells and reached the meristematic structures expressing a high level of GUS activity during 14 days of culture; but after this period, most of the meristematic structures showed premature cell vacuolization and disorganization. This disruption of the GUS-positive meristematic areas could be responsible of the difficulties encountered to regenerate melon plants after genetic transformation.
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Affiliation(s)
- V Chovelon
- INRA Avignon, UR1052, Unité de Génétique et d'Amélioration des Fruits et Légumes, BP 94, 84143, Montfavet Cedex, France.
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Eapen S. Pollen grains as a target for introduction of foreign genes into plants: an assessment. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2011; 17:1-8. [PMID: 23572990 PMCID: PMC3550569 DOI: 10.1007/s12298-010-0042-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Introduction of foreign genes and development of transgenic plants have become an integral part of crop improvement programmes in the last decade. However, most of the present day plant transformation protocols require long periods for development of transgenic plants and need skilled personnel. Development of alternate, simple and rapid transformation protocols for development of transgenic plants can overcome the constraints of in vitro culture, regeneration and associated problems. Pollen grains, due to their abundance and ease with which they can be handled are ideal targets for introduction of foreign genes into the germ line. However, progress in introduction of transgenes into pollen grains and their subsequent use in fertilization leading to development of transgenic plants are limited. With the recent progress made in understanding of pollen development along with reports of successful pollen-mediated transformation in important crop plants, it should be possible to extend this simple method of transformation to other crop plants. The review deals with development of pollen grains as a target for introduction of genes with special emphasis on recent developments.
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Affiliation(s)
- Susan Eapen
- Plant Biotechnology and Secondary products Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, 400085 India
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Hao J, Niu Y, Yang B, Gao F, Zhang L, Wang J, Hasi A. Transformation of a marker-free and vector-free antisense ACC oxidase gene cassette into melon via the pollen-tube pathway. Biotechnol Lett 2010; 33:55-61. [DOI: 10.1007/s10529-010-0398-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2010] [Accepted: 08/27/2010] [Indexed: 12/01/2022]
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Abstract
Dramatic progress has been made in the development of gene transfer systems for higher plants. The ability to introduce foreign genes into plant cells and tissues and to regenerate viable, fertile plants has allowed for explosive expansion of our understanding of plant biology and has provided an unparalleled opportunity to modify and improve crop plants. Genetic engineering of plants offers significant potential for seed, agrichemical, food processing, specialty chemical, and pharmaceutical industries to develop new products and manufacturing processes. The extent to which genetically engineered plants will have an impact on key industries will be determined both by continued technical progress and by issues such as regulatory approval, proprietary protection, and public perception.
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Tianzi C, Shenjie W, Jun Z, Wangzhen G, Tianzhen Z. Pistil drip following pollination: a simple in planta Agrobacterium-mediated transformation in cotton. Biotechnol Lett 2009; 32:547-55. [PMID: 19953299 DOI: 10.1007/s10529-009-0179-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 11/10/2009] [Accepted: 11/16/2009] [Indexed: 10/20/2022]
Abstract
Transgenic cotton plants were developed by pistil drip inoculation in a solution containing Agrobacterium carrying a gene for resistance to the herbicide Basta (bar), 10% (w/v) sucrose, 0.05% (v/v) Silwet L-77 and 40 mg acetosyringone l(-1). Pistil drip during 17:00-19:00 on the first day of flowering resulted in 0.07-0.17% Basta-resistant plants/number of viable seeds generated, and stigma excision prior to pistil drip during this time period gave rise to a transformation efficiency of 0.46-0.93%, in contrast with 0.04-0.06% generated from pistil drip during 9:00-11:00 on the second day of flowering. PCR and Southern blot analysis confirmed the integration of the bar gene into the cotton genome, and a T1 and T2 generation herbicide resistance test consistently revealed expression and stable heritability of the bar gene in the two generations.
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Affiliation(s)
- Chen Tianzi
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
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35
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Yang A, Su Q, An L. Ovary-drip transformation: a simple method for directly generating vector- and marker-free transgenic maize (Zea mays L.) with a linear GFP cassette transformation. PLANTA 2009; 229:793-801. [PMID: 19107510 DOI: 10.1007/s00425-008-0871-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2008] [Accepted: 11/24/2008] [Indexed: 05/08/2023]
Abstract
The presence of selectable marker genes and vector backbone sequences has affected the safe assessment of transgenic plants. In this study, the ovary-drip method for directly generating vector- and selectable marker-free transgenic plants was described, by which maize was transformed with a linear GFP cassette (Ubi-GFP-nos). The key features of this method center on the complete removal of the styles and the subsequent application of a DNA solution directly to the ovaries. The movement of the exogenous DNA was monitored using fluorescein isothiocyanate-labeled DNA, which showed that the time taken by the exogenous DNA to enter the ovaries was shortened compared to that of the pollen-tube pathway. This led to an improved transformation frequency of 3.38% compared to 0.86% for the pollen-tube pathway as determined by PCR analysis. The use of 0.05% surfactant Silwet L-77 + 5% sucrose as a transformation solution further increased the transformation frequency to 6.47%. Southern blot analysis showed that the transgenic plants had low transgene copy number and simple integration pattern. Green fluorescence was observed in roots and immature embryos of transgenic plants by fluorescence microscopy. Progeny analysis showed that GFP insertions were inherited in T(1) generation. The ovary-drip method would become a favorable choice for directly generating vector- and marker-free transgenic maize expressing functional genes of agronomic interest.
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Affiliation(s)
- Aifu Yang
- Department of Bioscience and Biotechnology, Dalian University of Technology, Dalian, 116024, People's Republic of China.
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36
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Detection of vector- and selectable marker-free transgenic maize with a linear GFP cassette transformation via the pollen-tube pathway. J Biotechnol 2009; 139:1-5. [DOI: 10.1016/j.jbiotec.2008.08.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2008] [Revised: 07/04/2008] [Accepted: 08/31/2008] [Indexed: 11/18/2022]
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Abstract
In recent years, a large number of gene transfer methods have been developed. However, the results of these studies have often been published in such a way that it has been extremely difficult for researchers to assess the reliability and efficiency of the method, and to judge whether or not integrative transformation has occurred. Thus although an abundance of knowledge exists within the area of gene transfer, its documentation remains disjointed. This report summarises the recent progress which has been made in the field of gene transfer systems in plants and discusses the associated advantages, disadvantages and limitations in an attempt to clarify this issue.
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Affiliation(s)
- Zhi-Hong Xu
- College of Life Sciences, Peking University, Beijing, People's Republic of China.
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40
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Bent AF. Arabidopsis in planta transformation. Uses, mechanisms, and prospects for transformation of other species. PLANT PHYSIOLOGY 2000; 124:1540-7. [PMID: 11115872 PMCID: PMC1539310 DOI: 10.1104/pp.124.4.1540] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Affiliation(s)
- A F Bent
- Department of Plant Pathology, University of Wisconsin, Madison, Wisconsin 53706, USA.
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41
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Introduction of exogenous DNA into cotton via the pollen-tube pathway with GFP as a reporter. ACTA ACUST UNITED AC 1999. [DOI: 10.1007/bf02909705] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Genetic expression in progeny of transgenic plants obtained by using pollen-tube pathway (or delivery) method and approach to the transformation mechanism. ACTA ACUST UNITED AC 1998. [DOI: 10.1007/bf03182737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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{BLR 1637} USDA - Calgene - Environmental Defense Fund. Biotechnol Law Rep 1994. [DOI: 10.1089/blr.1994.13.122a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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{BLR 1636} Porcine Diseases - Vaccines - Syntro - USDA. Biotechnol Law Rep 1994. [DOI: 10.1089/blr.1994.13.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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45
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Wagner VT, Dumas C, Mogensen HL. Quantitative three-dimensional study on the position of the female gametophyte and its constituent cells as a prerequisite for corn (Zea mays) transformation. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1990; 79:72-76. [PMID: 24226122 DOI: 10.1007/bf00223789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/1989] [Accepted: 07/31/1989] [Indexed: 06/02/2023]
Abstract
The position of the embryo sac in the spikelet and of the embryo sac's constituent cells within the sporophytic tissues of Zea mays was localized by scanning electron microscopy, serial thick sectioning, and computer three-dimensional reconstruction. Within certain limits, the embryo sac is consistently oriented in the same position inside of the spikelet. This information is a prerequisite for successful microinjections into the in situ female cells of Zea mays.
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Affiliation(s)
- V T Wagner
- Reconnaissance Cellulaire et Amelioration des Plantes, Université Claude Bernard-Lyon I/La INRA 879 43 Boul. du 11 Novembre 1918, F-69622, Villeurbanne Cedex, France
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46
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Ahokas H. Transfection of germinating barley seed electrophoretically with exogenous DNA. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1989; 77:469-472. [PMID: 24232711 DOI: 10.1007/bf00274265] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/1988] [Accepted: 10/10/1988] [Indexed: 06/02/2023]
Abstract
A method is described for transfection (genetic transformation) of barley caryopsis electrophoretically with DNA. β-Glucuronidase activity was detected after the electrophoretic transfection with plasmid pBI221 DNA carrying the cauliflower mosaic virus promotor and bacterial β-glucuronidase coding sequence. Electrophoretic transfection is evidently effective with pieces of callus and seeds of many plants.
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Affiliation(s)
- H Ahokas
- Department of Genetics and Plant Molecular Biology Laboratory, University of Helsinki, Arkadiankatu 7, SF-00100, Helsinki, Finland
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In Vitro Genetic Manipulation of Cereals and Grasses. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/b978-0-12-007906-3.50015-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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49
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Feldmann KA, David Marks M. Agrobacterium-mediated transformation of germinating seeds of Arabidopsis thaliana: A non-tissue culture approach. ACTA ACUST UNITED AC 1987. [DOI: 10.1007/bf00330414] [Citation(s) in RCA: 320] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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50
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