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Diatraea saccharalis

ABSTRACT: Diatraea saccharalis Transcriptome or Gene expression

PROVIDER: PRJNA527774 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14376536_1.fastq.gz	Fastqsanger.gz
	SRR14376536_2.fastq.gz	Fastqsanger.gz
	SRR14376537_1.fastq.gz	Fastqsanger.gz
	SRR14376537_2.fastq.gz	Fastqsanger.gz
	SRR14376538_1.fastq.gz	Fastqsanger.gz

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Project description:Sex pheromone biosynthesis in the sugarcane borer Diatraea saccharalis: paving the way for biotechnological production

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Sugarcane transcriptome - Response to herbivory by Diatraea saccharalis

Project description:Sugarcane stalk borer larvae were grown on artificial diet and maintained at 25°C and 60±10% relative humidity with a 14 h/10 h light/dark cycle. Second instar larvae were maintained under fasting conditions for 18 h and transferred to two-month old plants (genotype SP80-3280, CTC, Brazil). Leaves were collected after 30 min and 24 h of exposure to herbivory for the control and experimental groups. Two plantlets were used for each time point. Extraction of total RNA was performed separately on each sample pool. Keywords: time course of stress response

2007-05-20 | GSE4967 | GEO

Diatraea saccharalis harbors microorganisms that can affect growth of sugarcane stalk-dwelling fungi.

Project description:Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), the sugarcane borer, spends most of its life cycle inside the galleries it burrows into sugarcane stalk, where two rot-causing fungi Colletotrichum falcatum (Went, 1893) and Fusarium verticillioides (Nirenberg, 1976) are commonly found. Results have shown that microbiota harbored by D. saccharalis inhibits the growth of F. verticillioides and C. falcatum. D. saccharalis larvae were collected from chemical-free field plants, and yeast and bacteria from third and fourth-instar D. saccharalis regurgitate were isolated onto appropriate media. The percentage of F. verticillioides and C. falcatum mycelial growth inhibition was recorded. Out of 32 yeast isolates, 9 exerted 30 to 40% growth inhibition of C. falcatum or F. verticillioides. When 24 bacterial isolates were confronted with rot-causing fungi, six inhibited C. falcatum growth by 30 to 60%, and 24 isolates inhibited 30 to 60% of F. verticillioides growth. Bacteria and yeast isolates were identified through DNA sequencing of part of 16S rDNA and part of ITS1-5.8S-ITS2, respectively, revealing an abundance of isolates with sequence similarity to Klebsiella and Bacillus and Meyerozyma, which have been used as biological control agents and their ability to promote plant growth has been demonstrated. We have shown that microorganisms from borer regurgitate inhibit phytopathogen growth in vitro. Still, further investigation of the possible functions of D. saccharalis-associated microorganisms may help understand their ecological role in plant-insect-phytopathogen interaction.

| S-EPMC8882512 | biostudies-literature

Comparative gut transcriptome analysis of Diatraea saccharalis in response to the dietary source.

Project description:The sugarcane borer (Diatraea saccharalis, Fabricius, 1794) is a devastating pest that causes millions of dollars of losses each year to sugarcane producers by reducing sugar and ethanol yields. The control of this pest is difficult due to its endophytic behavior and rapid development. Pest management through biotechnological approaches has emerged in recent years as an alternative to currently applied methods. Genetic information about the target pests is often required to perform biotechnology-based management. The genomic and transcriptomic data for D. saccharalis are very limited. Herein, we report a tissue-specific transcriptome of D. saccharalis larvae and a differential expression analysis highlighting the physiological characteristics of this pest in response to two different diets: sugarcane and an artificial diet. Sequencing was performed on the Illumina HiSeq 2000 platform, and a de novo assembly was generated. A total of 27,626 protein-coding unigenes were identified, among which 1,934 sequences were differentially expressed between treatments. Processes such as defence, digestion, detoxification, signaling, and transport were highly represented among the differentially expressed genes (DEGs). Furthermore, seven aminopeptidase genes were identified as candidates to encode receptors of Cry proteins, which are toxins of Bacillus thuringiensis used to control lepidopteran pests. Since plant-insect interactions have produced a considerable number of adaptive responses in hosts and herbivorous insects, the success of phytophagous insects relies on their ability to overcome challenges such as the response to plant defences and the intake of nutrients. In this study, we identified metabolic pathways and specific genes involved in these processes. Thus, our data strongly contribute to the knowledge advancement of insect transcripts, which can be a source of target genes for pest management.

| S-EPMC7398519 | biostudies-literature

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