Characterization of STP4 promoter in Indian mustard Brassica juncea for use as an aphid responsive promoter
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Title |
Characterization of STP4 promoter in Indian mustard Brassica juncea for use as an aphid responsive promoter
Not Available |
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Creator |
Chet Ram
Murali Krishna Koramutla Rekha Kansal Ajay Arora Pradeep K. Jain Ramcharan Bhattacharya |
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Subject |
Aphid-responsive genes
Plant inducible promoter Promoter analysis Brassica juncea Agroinfiltration Transgenics |
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Description |
Not Available
Objective Brassica juncea, a major oilseed crop, suffers substantial yield losses due to infestation by mustard aphids (Lipaphis erysimi). Unavailability of resistance genes within the accessible gene pool underpins significance of the transgenic strategy in developing aphid resistance. In this study, we aimed for the identification of an aphid-responsive promoter from B. juncea, based on the available genomic resources. Results A monosaccharide transporter gene, STP4 in B. juncea was activated by aphids and sustained increased expression as the aphids colonized the plants. We cloned the upstream intergenic region of STP4 and validated its stand-alone aphid-responsive promoter activity. Further, deletion analysis identified the putative cis-elements important for the aphid responsive promoter activity. Conclusion The identified STP4 promoter can potentially be used for driving high level aphidinducible expression of transgenes in plants. Use of aphid-responsive promoter instead of constitutive promoters can potentially reduce the metabolic burden of transgene-expression on the host plant. Not Available |
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Date |
2021-07-09T06:01:25Z
2021-07-09T06:01:25Z 2020-07-16 |
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Type |
Research Paper
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Identifier |
Not Available
0141-5492 http://krishi.icar.gov.in/jspui/handle/123456789/47576 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Springer
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