Kushalappa, A C and Hegde, N G and Yogendra, K N (2022) Metabolic pathway genes for editing to enhance multiple disease resistance in plants. Journal of Plant Research, 135. pp. 705-722. ISSN 1618-0860
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Abstract
Diseases are one of the major constraints in commercial crop production. Genetic diversity in varieties is the best option to manage diseases. Molecular marker-assisted breeding has produced hundreds of varieties with good yields, but the resistance level is not satisfactory. With the advent of whole genome sequencing, genome editing is emerging as an excellent option to improve the inadequate traits in these varieties. Plants produce thousands of antimicrobial secondary metabolites, which as polymers and conjugates are deposited to reinforce the secondary cell walls to contain the pathogen to an initial infection area. The resistance metabolites or the structures produced from them by plants are either constitutive (CR) or induced (IR), following pathogen invasion. The production of each resistance metabolite is controlled by a network of biosynthetic R genes, which are regulated by a hierarchy of R genes. A commercial variety also has most of these R genes, as in resistant, but a few may be mutated (SNPs/InDels). A few mutated genes, in one or more metabolic pathways, depending on the host–pathogen interaction, can be edited, and stacked to increase resistance metabolites or structures produced by them, to achieve required levels of multiple pathogen resistance under field conditions.
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Biotic stress resistance, Cell wall reinforcement, Innate immunity in plants, Metabolite biosynthetic genes, Multiple disease resistance, Transgene-free genome editing |
| Subjects: | Others > Agriculture Others > Genetic Engineering Others > Plant Genetics |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 03 Oct 2023 10:50 |
| Last Modified: | 03 Oct 2023 10:50 |
| URI: | http://oar.icrisat.org/id/eprint/12205 |
| Official URL: | https://link.springer.com/article/10.1007/s10265-0... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | This project was funded by Weston-Loblaw Inc. and the Natural Sciences and Engineering Council of Canada (NSERC). |
| Links: |
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