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ARTICLE

Integrative Analysis of the Transcriptome and Metabolome of Poplar, Populus deltoides ‘Shalinyang’. (Salicaceae), Reveals Responses to Attack by Anoplophora glabripennis (Coleoptera)

Jiayu Luo1,#, Jianfeng Liu1,#, Zuoxiang Sun1, Pengpeng Shao1, Danyang Wang2, Jianzhong Yao3, Binzhou Li2, Lijun Dong1, Dandan Cao1,4,*, Jianrong Wei1,*
1 College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
2 Experimental Center of Desert Forest, Chinese Academy of Forestry, Bayannur, 015200, China
3 Shanxi Experiment Bureau for High-Yield Poplar Forests, Datong, 037006, China
4 Hebei Innovation Center for Bioengineering and Biotechnology, Hebei University, Baoding, 071002, China
* Corresponding Author: Dandan Cao. Email: email; Jianrong Wei. Email: email
# These authors contributed equally to this work
(This article belongs to the Special Issue: Ecology of Rangelands in Argentina)

Phyton-International Journal of Experimental Botany https://doi.org/10.32604/phyton.2024.052858

Received 17 April 2024; Accepted 05 August 2024; Published online 13 September 2024

Abstract

Anoplophora glabripennis is one of the most devastating wood-boring beetles that attacks poplars. However, one poplar species, Populus deltoides, has strong resistance to Anoplophora glabripennis infestation, the underlying defense mechanisms against Anoplophora glabripennis are poorly understood. Secondary metabolites play a crucial role in plants to combat biological stress. Here, based on transcriptome and metabolome, we demonstrated that the mechanisms for responses to mechanical damage and insect infestation were different. The degree of reactions to adult groove production, larval incubation, and larval frass production was not identical. In addition, the potential genes with insect resistance activity were identified. Predominant differentially expressed genes (DEGs) found in the phloem of Populus deltoides include anthocyanidin 3-O-glucosyltransferase5 (PdUGT72E), peroxidase 73 (PdPod73), peroxidase A2 (PdPodA2) and macrophage migration inhibitory factor (PdMIF) responded to stress caused by Anoplophora glabripennis, which further resulted in activation of the plant defense system against insects via changes in regulation of metabolic pathways, such as tyrosine metabolism pathway, phenylpropanoid biosynthesis pathway and flavonoid biosynthesis pathway. Therefore, this work has laid a foundation for further unraveling the mechanisms involved in this interaction.

Keywords

Populus deltoides ‘Shalinyang’; Anoplophora glabripennis; transcriptome and metabolome; defense response

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