1
|
Szabó Z, Balogh M, Domonkos Á, Csányi M, Kaló P, Kiss GB. The bs5 allele of the susceptibility gene Bs5 of pepper (Capsicum annuum L.) encoding a natural deletion variant of a CYSTM protein conditions resistance to bacterial spot disease caused by Xanthomonas species. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:64. [PMID: 36943531 PMCID: PMC10030403 DOI: 10.1007/s00122-023-04340-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 03/02/2023] [Indexed: 05/09/2023]
Abstract
KEY MESSAGE The bs5 resistance gene against bacterial spot was identified by map-based cloning. The recessive bs5 gene of pepper (Capsicum annuum L.) conditions a non-hypersensitive resistance trait, characterized by a slightly swollen, pale green, photosynthetically active leaf tissue, following Xanthomonas euvesicatoria infection. The isolation of the bs5 gene by map-based cloning revealed that the bs5 protein was shorter by 2 amino acids as compared to the wild type Bs5 protein. The natural 2 amino acid deletion occurred in the cysteine-rich transmembrane domain of the tail-anchored (TA) protein, Ca_CYSTM1. The protein products of the wild type Bs5 and mutant bs5 genes were shown to be located in the cell membrane, indicating an unknown function in this membrane compartment. Successful infection of the Bs5 pepper lines was abolished by the 6 bp deletion in the TM encoding domain of the Ca_CYSTM1 gene in bs5 homozygotes, suggesting, that the resulting resistance might be explained by the lack of entry of the Xanthomonas specific effector molecules into the plant cells.
Collapse
Affiliation(s)
- Zoltán Szabó
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. U. 4., 2100, Gödöllő, Hungary.
| | - Márta Balogh
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. U. 4., 2100, Gödöllő, Hungary
| | - Ágota Domonkos
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. U. 4., 2100, Gödöllő, Hungary
| | - Márta Csányi
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. U. 4., 2100, Gödöllő, Hungary
| | - Péter Kaló
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. U. 4., 2100, Gödöllő, Hungary
- Institute of Plant Biology, Biological Research Center, Eötvös Lóránd Research Network, Szeged, Hungary
| | - György B Kiss
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi A. U. 4., 2100, Gödöllő, Hungary
- AMBIS Biotechnology Research and Development Ltd., Budapest, Hungary
| |
Collapse
|
2
|
Heidmann I, de Lange B, Lambalk J, Angenent GC, Boutilier K. Efficient sweet pepper transformation mediated by the BABY BOOM transcription factor. PLANT CELL REPORTS 2011; 30:1107-15. [PMID: 21305301 PMCID: PMC3092944 DOI: 10.1007/s00299-011-1018-x] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 01/18/2011] [Accepted: 01/18/2011] [Indexed: 05/19/2023]
Abstract
Pepper (Capsicum L.) is a nutritionally and economically important crop that is cultivated throughout the world as a vegetable, condiment, and food additive. Genetic transformation using Agrobacterium tumefaciens (agrobacterium) is a powerful biotechnology tool that could be used in pepper to develop community-based functional genomics resources and to introduce important agronomic traits. However, pepper is considered to be highly recalcitrant for agrobacterium-mediated transformation, and current transformation protocols are either inefficient, cumbersome or highly genotype dependent. The main bottleneck in pepper transformation is the inability to generate cells that are competent for both regeneration and transformation. Here, we report that ectopic expression of the Brassica napus BABY BOOM AP2/ERF transcription factor overcomes this bottleneck and can be used to efficiently regenerate transgenic plants from otherwise recalcitrant sweet pepper (C. annuum) varieties. Transient activation of BABY BOOM in the progeny plants induced prolific cell regeneration and was used to produce a large number of somatic embryos that could be converted readily to seedlings. The data highlight the utility of combining biotechnology and classical plant tissue culture approaches to develop an efficient transformation and regeneration system for a highly recalcitrant vegetable crop.
Collapse
Affiliation(s)
- Iris Heidmann
- Enza Zaden Research and Development B.V, P.O. Box 7, 1600 AA Enkhuizen, The Netherlands
| | - Brenda de Lange
- Enza Zaden Research and Development B.V, P.O. Box 7, 1600 AA Enkhuizen, The Netherlands
| | - Joep Lambalk
- Enza Zaden Research and Development B.V, P.O. Box 7, 1600 AA Enkhuizen, The Netherlands
| | - Gerco C. Angenent
- Plant Research International, Wageningen University and Research Centre, P.O. Box 619, 6700 AP Wageningen, The Netherlands
| | - Kim Boutilier
- Plant Research International, Wageningen University and Research Centre, P.O. Box 619, 6700 AP Wageningen, The Netherlands
| |
Collapse
|
3
|
Liu B, Wang H, Du Z, Li G, Ye H. Metabolic engineering of artemisinin biosynthesis in Artemisia annua L. PLANT CELL REPORTS 2011; 30:689-94. [PMID: 21184232 DOI: 10.1007/s00299-010-0967-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 11/18/2010] [Accepted: 11/30/2010] [Indexed: 05/19/2023]
Abstract
Artemisinin, a sesquiterpene lactone isolated from the Chinese medicinal plant Artemisia annua L., is an effective antimalarial agent, especially for multi-drug resistant and cerebral malaria. To date, A. annua is still the only commercial source of artemisinin. The low concentration of artemisinin in A. annua, ranging from 0.01 to 0.8% of the plant dry weight, makes artemisinin relatively expensive and difficult to meet the demand of over 100 million courses of artemisinin-based combinational therapies per year. Since the chemical synthesis of artemisinin is not commercially feasible at present, another promising approach to reduce the price of artemisinin-based antimalarial drugs is metabolic engineering of the plant to obtain a higher content of artemisinin in transgenic plants. In the past decade, we have established an Agrobacterium-mediated transformation system of A. annua, and have successfully transferred a number of genes related to artemisinin biosynthesis into the plant. The various aspects of these efforts are discussed in this review.
Collapse
Affiliation(s)
- Benye Liu
- Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, The Chinese Academy of Sciences, Nanxincun 20, Haidian District, Beijing, 100093, China
| | | | | | | | | |
Collapse
|
4
|
Kothari S, Joshi A, Kachhwaha S, Ochoa-Alejo N. Chilli peppers — A review on tissue culture and transgenesis. Biotechnol Adv 2010; 28:35-48. [DOI: 10.1016/j.biotechadv.2009.08.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Revised: 08/15/2009] [Accepted: 08/24/2009] [Indexed: 10/20/2022]
|
5
|
Bukovinszki A, Divéki Z, Csányi M, Palkovics L, Balázs E. Engineering resistance to PVY in different potato cultivars in a marker-free transformation system using a 'shooter mutant' A. tumefaciens. PLANT CELL REPORTS 2007; 26:459-65. [PMID: 17103215 DOI: 10.1007/s00299-006-0257-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2006] [Revised: 09/04/2006] [Accepted: 09/17/2006] [Indexed: 05/12/2023]
Abstract
In this work, Potato virus Y (PVY) resistant potatoes were generated using an environmentally safe construct. For this purpose, a 'shooter' mutant Agrobacterium-based transformation system was used. The isopentenyl transferase gene (ipt) present on the Ti plasmid of 'shooter' strains enhances shoot regeneration and can be used as a phenotypic selection marker. The introduced marker-free binary vector carried a hairpin construct derived from the coat protein gene of PVY-NTN strain in order to induce gene silencing. Transformation resulted in high regeneration rates (1.4-5.7 shoots per explant). With pre-selection for the ipt (+) phenotype the transformation frequency was 24-53%, while without selection 12-28% of the shoots were PCR positive. The presence of the transgene was verified by Southern hybridization. In 16 of 31 challenged transformant lines PVY could be detected neither by RT-PCR nor by back inoculation. A 62.5% of these resistant lines proved to be also ipt-free. This transformation system was reproducible in four potato cultivars, suggesting that it could easily be adapted for other species.
Collapse
Affiliation(s)
- Agnes Bukovinszki
- Agricultural Biotechnology Center, Szent-Györgyi A u 4, 2100, Gödöllo, Hungary.
| | | | | | | | | |
Collapse
|
6
|
Djian-Caporalino C, Lefebvre V, Sage-Daubèze AM, Palloix A. Capsicum. GENETIC RESOURCES, CHROMOSOME ENGINEERING, AND CROP IMPROVEMENT 2006. [DOI: 10.1201/9781420009569.ch6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
7
|
Luo K, Zheng X, Chen Y, Xiao Y, Zhao D, McAvoy R, Pei Y, Li Y. The maize Knotted1 gene is an effective positive selectable marker gene for Agrobacterium-mediated tobacco transformation. PLANT CELL REPORTS 2006; 25:403-9. [PMID: 16369767 DOI: 10.1007/s00299-005-0051-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2004] [Revised: 07/21/2005] [Accepted: 07/26/2005] [Indexed: 05/05/2023]
Abstract
We have assessed the use of a homeobox gene knotted1 (kn1) from maize as a selectable marker gene for plant transformation. The kn1 gene under the control of cauliflower mosaic virus 35S promoter (35S::kn1) was introduced into Nicotiana tabacum cv. Xanthi via Agrobacterium-mediated transformation. Under nonselective conditions (without antibiotic selection) on a hormone-free medium (MS), a large number of transgenic calli and shoots were obtained from explants that were infected with Agrobacterium tumefaciens LBA4404 harboring the 35S::kn1 gene. On the other hand, no calli or shoots were produced from explants that were infected with an Agrobacterium strain harboring pBI121 (nptII selection) or from uninfected controls cultured under identical conditions. Relative to kanamycin selection conferred by nptII, the use of kn1 resulted in a 3-fold increase in transformation efficiency. The transgenic status of shoots obtained was confirmed by both histochemical detection of GUS activity and molecular analysis. The results presented here suggest that kn1 gene could be used as an effective alternative selection marker with a potential to enhance plant transformation efficiency in many plant species. With kn1 gene as a selection marker gene, no antibiotic-resistance or herbicide-resistance genes are needed so that potential risks associated with the use of these traditional selection marker genes can be eliminated.
Collapse
Affiliation(s)
- Keming Luo
- Biotechnology Research Center, Southwest University, Chongqing, 400716, P.R. China
| | | | | | | | | | | | | | | |
Collapse
|
8
|
Nagl N, Atanassov I, Roussanov K, Paunovich S, Atanassov A, Kovachev L. Construction of Plant Transformation Vectors Carrying Beet Necrotic Yellow Vein Virus Coat Protein Gene (II)- Plant Transformation. BIOTECHNOL BIOTEC EQ 2005. [DOI: 10.1080/13102818.2005.10817225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|