Genotypic variation in field-grown maize eliminates trade-offs between resistance, tolerance and growth in response to high pressure from the Asian corn borer

doi:10.1111/pce.14458

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	Genotypic variation in field-grown maize eliminates trade-offs between resistance, tolerance and growth in response to high pressure from the Asian corn borer
	Guo, Jingfei; Liu, Shen; Jing, Dapeng; He, Kanglai; Zhang, Yongjun; Li, Mingshun; Qi, Jinfeng; Wang, Zhenying
	2022
发表期刊	PLANT CELL AND ENVIRONMENT
摘要	Insect herbivory challenges plant survival, and coordination of the interactions between growth, herbivore resistance/tolerance is a key problem faced by plants. Based on field experiments into resistance to the Asian corn borer (ACB, Ostrinia furnacalis), we selected 10 inbred maize lines, of which five were resistant and five were susceptible to ACB. We conducted ACB larval bioassays, analysed defensive chemicals, phytohormones, and relative gene expression using RNA-seq and qPCR as well as agronomic traits, and found resistant lines had weaker inducibility, but were more resistant after ACB attack than susceptible lines. Resistance was related to high levels of major benzoxazinoids, but was not related to induced levels of JA or JA-Ile. Following combination analyses of transcriptome, metabolome and larval performance data, we discovered three benzoxazinoids biosynthesis-related transcription factors, NAC60, WRKY1 and WRKY46. Protoplast transformation analysis suggested that these may regulate maize defence-growth trade-offs by increasing levels of benzoxazinoids, JA and SA but decreasing IAA. Moreover, the resistance/tolerance-growth trade-offs were not observed in the 10 lines, and genotype-specific metabolic and genetic features probably eliminated the trade-offs. This study highlights the possibility of breeding maize varieties simultaneously with improved defences and higher yield under complex field conditions.
关键词	benzoxazinoids Constitutive resistance induced resistance transcription factor PLANT-RESISTANCE GENERALIST HERBIVORES DEFENSE RESPONSES GENETIC-VARIATION INSECT HERBIVORY SALICYLIC-ACID METABOLITES LEAVES QUANTIFICATION BIOSYNTHESIS
DOI	10.1111/pce.14458
收录类别	SCI
WOS记录号	WOS:000868528900001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75659
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Guo, Jingfei,Liu, Shen,Jing, Dapeng,et al. Genotypic variation in field-grown maize eliminates trade-offs between resistance, tolerance and growth in response to high pressure from the Asian corn borer[J]. PLANT CELL AND ENVIRONMENT,2022.
APA	Guo, Jingfei.,Liu, Shen.,Jing, Dapeng.,He, Kanglai.,Zhang, Yongjun.,...&Wang, Zhenying.(2022).Genotypic variation in field-grown maize eliminates trade-offs between resistance, tolerance and growth in response to high pressure from the Asian corn borer.PLANT CELL AND ENVIRONMENT.
MLA	Guo, Jingfei,et al."Genotypic variation in field-grown maize eliminates trade-offs between resistance, tolerance and growth in response to high pressure from the Asian corn borer".PLANT CELL AND ENVIRONMENT (2022).

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