Pavithran, S and Murugan, M and Mannu, J and Yogendra, K and Balasubramani, V and Sanivarapu, H and Harish, S and Natesan, S (2023) Identification of salivary proteins of the cowpea aphid Aphis craccivora by transcriptome and LC-MS/MS analyses. Insect Biochemistry and Molecular Biology, 165. ISSN 0965-1748
Full text not available from this repository. (Request a copy)Abstract
Aphid salivary proteins mediate the interaction between aphids and their host plants. Moreover, these proteins facilitate digestion, detoxification of secondary metabolites, as well as activation and suppression of plant defenses. The cowpea aphid, Aphis craccivora, is an important sucking pest of leguminous crops worldwide. Although aphid saliva plays an important role in aphid plant interactions, knowledge of the cowpea aphid salivary proteins is limited. In this study, we performed transcriptomic and LC-MS/MS analyses to identify the proteins present in the salivary glands and saliva of A. craccivora. A total of 1,08,275 assembled transcripts were identified in the salivary glands of aphids. Of all these assembled transcripts, 53,714 (49.11%) and 53,577 (49.48%) transcripts showed high similarity to known proteins in the Nr and UniProt databases, respectively. A total of 2159 proteins were predicted as secretory proteins from the salivary gland transcriptome dataset, which contain digestive enzymes, detoxification enzymes, previously known effectors and elicitors, and potential proteins whose functions have yet to be determined. The proteomic analysis of aphid saliva resulted in the identification of 171 proteins. Tissue-specific expression of selected genes using RT-PCR showed that three genes were expressed only in the salivary glands. Overall, our results provide a comprehensive repertoire of cowpea aphid salivary proteins from the salivary gland and saliva, which will be a good resource for future effector functional studies and might also be useful for sustainable aphid management.
| Item Type: | Article |
|---|---|
| Divisions: | Global Research Program - Accelerated Crop Improvement |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | cowpea, Aphid salivary proteins, Aphis craccivora |
| Subjects: | Others > Cowpea |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 29 May 2024 08:20 |
| Last Modified: | 29 May 2024 08:21 |
| URI: | http://oar.icrisat.org/id/eprint/12684 |
| Official URL: | https://www.sciencedirect.com/science/article/abs/... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | S. Pavithran acknowledges the financial assistance provided by Indian Council of Agricultural Research, Agricultural Education Division, New Delhi (F. No. EDN/1/25/2105-Exam Cell) through ICAR Senior Research Fellowship. The transcriptome assembly and annotation works were performed utilizing the facilities available in the Bioinformatics Laboratory, CPMB&B, TNAU supported under the Department of Biotechnology (DBT), Government of India, New Delhi (BT/PR40235/BTIS/137/39/2022). The proteomics... |
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