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ABSTRACT: Transcriptome dynamics of male cotton aphid

PROVIDER: PRJNA601614 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10902161.fastq.gz	Fastqsanger.gz
	SRR10902162.fastq.gz	Fastqsanger.gz
	SRR10902163.fastq.gz	Fastqsanger.gz
	SRR10902164.fastq.gz	Fastqsanger.gz
	SRR10902165.fastq.gz	Fastqsanger.gz

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Expression of small RNA in Aphis gossypii and its potential role in the resistance interaction with melon

Project description:This study was designed to identify the sRNAs in Aphis gossypii (cotton-melon aphid) during Vat-mediated resistance in teraction with melon

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Proteomic analysis of saliva and salivary gland of Aphis gossypii

Project description:The cotton - melon aphid Aphis gossypii is an extremely polyphagous sap feeding insect which infests more than 900 crops worldwide and posing a severe threat to farmers. The salivary proteins acts as interface between aphid and their host plant.However, the cotton aphid salivary proteome was not studied yet. Identifying the salivary proteins helps in better understanding of aphid adaptation to their host plant which aids us to search for novel plant genetic source.

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label-free analysis of male-sterile line 1355A of cotton

Project description:Cotton (Gossypium spp.) is one of the most important economic crops and exhibits yield-improving heterosis in specific hybrid combinations. The genic male-sterility system is the main strategy used for producing heterosis in cotton. To better understand the mechanisms of male sterility in cotton, we carried out label-free quantitative proteomics analysis in the anthers of two near-isogenic lines, the male-sterile line 1355A and the male-fertile line 1355B, the two isogenic lines. These experiments, along with bioinformatics analyses, identified 124 proteins from the anthers at uninucleate pollen stage (stage 8) that were significantly differentially expressed between these two lines.

2019-03-19 | PXD012398 | Pride

Lipidomics and RNA-Seq Study of Lipid Regulation in Aphis gossypii parasitized by Lysiphlebia japonica

Project description:The cotton-melon aphid, Aphis gossypii Glover, is a major insect pest worldwide. Lysiphlebia japonica (Ashmead) is an obligate parasitic wasp of A. gossypii, and has the ability to regulate lipid metabolism of the cotton-melon aphid. Lipids are known to play critical roles in energy homeostasis, membrane structure, and signaling. However, the parasitoid genes that regulate fat metabolism and lipid composition in aphids are not known. 34 glycerolipids and 248 glycerophospholipids were identified in this study. We have shown that a 3-day parasitism of aphids can induce significant changes in the content and acyl chain composition of triacylglycerols (TAGs) and subspecies composition of glycerophospholipids content and acyl chains. It also upregulate the expression of several genes involved in triacylglycerol synthesis and glycerophospholipid metabolism. Pathway analysis showed that a higher expression of genes involved in the tricarboxylic acid cycle and glycolysis pathways may contribute to TAGs synthesis in parasitized aphids. Interestingly, the higher expression of genes in the sphingomyelin pathway and reduced sphingomyelin content may be related to the reproductive ability of A. gossypii. We provide a comprehensive resource describing the molecular signature of parasitized A. gossypii particularly the changes associated with the lipid metabolism and discuss the biological and ecological significance of this change.

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iTRAQ-Facilitated Proteomic Profiling of Cotton Anthers

Project description:Cotton (Gossypium hirsutum L.) is an important economic crop, used mainly for the production of textile fiber. Using a space mutation breeding technique, a novel photosensitive genetic male sterile mutant CCRI9106 was isolated from the wild-type upland cotton cultivar CCRI040029. To use CCRI9106 in cotton hybrid breeding, it is of great importance to study the molecular mechanisms of its male sterility. Here, histological and iTRAQ-facilitated proteomic analyses of anthers were performed to explore male sterility mechanisms of the mutant. Scanning and transmission electron microscopy of the anthers showed that the development of pollen wall in CCRI9106 was severely defective with a lack of exine formation. At the protein level, 6,121 high-confidence proteins were identified and 365 of them showed differential expression patterns between mutant and wild-type anthers. The proteins up- or down-regulated in MT anthers were mainly involved in exine formation, protein degradation, calcium ion binding and etc. These findings provide valuable information on the proteins involved in anther and pollen development, and contribute to elucidate the mechanism of male sterility in upland cotton.

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