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Effects of Spodoptera exigua eggs on gene expression in systemic Nicotiana attenuata leaves

ABSTRACT: Effects of Spodoptera exigua eggs on gene expression in systemic Nicotiana attenuata leaves

PROVIDER: PRJNA626562 | ENA |

REPOSITORIES: ENA

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Effects of Spodoptera exigua eggs on gene expression in systemic Nicotiana attenuata leaves

Project description:Plants received oviposition by S. exigua (1-2 egg clutches). After 1 day, tissue from the next younger (systemic) leaf, or from the respective leaf position of a control plant without eggs, was harvested for RNA extraction.

2020-09-28 | GSE148927 | GEO

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Nicotiana attenuata transcriptome after oviposition and herbivory by S. exigua and M. sexta

Project description:Oviposition by lepidopteran herbivores on Nicotiana attenuata primes plant defence responses that are induced by the feeding larvae. While oviposition by both the generalist Spodoptera exigua and the specialist Manduca sexta primes the production of defensive phenylpropanoids, their larvae are differentially affected. We investigate here the impact of prior oviposition on the transcriptome and phytohormone levels of plants that were later attacked by larvae to find regulatory signals of this priming. In a full-factorial design, we evaluated the effects of oviposition and herbivory by both species. Oviposition alone had only subtle effects at the transcriptional level. Laval feeding alone induced species-specific plant responses. Larvae of the generalist regulated phytohormones and gene expression stronger than larvae of the specialist. A day after larvae started to feed, we detected no significant alterations of the plant's response to larval feeding due to prior oviposition by conspecific moths. Yet, oviposition by each of the species profoundly influenced the plant's transcriptional and phytohormonal response to feeding larvae of the other species. Remarkably, the species-specific plant responses to larval feeding shifted towards the response normally elicited by larvae of the ovipositing species. Thus, plants may already recognise an insect's identity upon its oviposition.

2018-06-27 | GSE116273 | GEO

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Project description:Spodoptera exigua Raw sequence reads

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Spodoptera exigua

Project description:Spodoptera exigua Transcriptome or Gene expression

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