Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Proteomic and transcriptomic responses to thiamethoxam in the Sweetpotato whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

ABSTRACT: We investigated the transcriptional response to thiamethoxam in the Bemisia tabaci using Illumina sequencing technology. A total of 1,338 genes were differently expressed in the thiamethoxam-resistant whiteflies. All the B biotype whiteflies were maintained on cabbage. The susceptible strain (TH-S) was cultured without exposure to any chemical insecticides. Before the sample collected, almost 10,000 thiamethoxam-resistant adult whiteflies were treated with 2,000 mg/L thiamethoxam (~LC80) to eliminate the heterozygous individuals. Then the survivors were collected after 48 hours and designated as the TH-2000 sample. Then approximately 1,500 adult TH-S and TH-2000 were collected, respectively, The RNA was extracted and sequenced using Illumina HiSeq 2000.

ORGANISM(S): Bemisia tabaci

SUBMITTER: Nina Yang

PROVIDER: E-GEOD-42102 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Transcriptomic and proteomic responses of sweetpotato whitefly, Bemisia tabaci, to thiamethoxam.

Yang Nina N Xie Wen W Yang Xin X Wang Shaoli S Wu Qingjun Q Li Rumei R Pan Huipeng H Liu Baiming B Shi Xiaobin X Fang Yong Y Xu Baoyun B Zhou Xuguo X Zhang Youjun Y

PloS one 20130509 5

<h4>Background</h4>The sweetpotato whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae), is one of the most widely distributed agricultural pests. Although it has developed resistance to many registered insecticides including the neonicotinoid insecticide thiamethoxam, the mechanisms that regulate the resistance are poorly understood. To understand the molecular basis of thiamethoxam resistance, "omics" analyses were carried out to examine differences between resistant and susceptible B. tabaci at ...[more]

PMID: 23671574

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Project description:Background: The composition of grapevine berry at harvest is a major determinant of wine quality. Optimal oenological maturity of berries is characterized by a high sugar/acidity ratio, high anthocyanin content in the skin, and low astringency. However, harvest time is still mostly determined empirically, based on crude biochemical composition and berry tasting. In this context, it is interesting to identify genes that are expressed/repressed specifically at the late stages of ripening and which may be used as indicators of maturity. Results: Whole bunches and berries sorted by density were collected in vineyard on Chardonnay (white cultivar) grapevines for two consecutive years at three stages of ripening (7-days before harvest (TH-7),harvest (TH), and 10-days after harvest (TH+10)). Microvinification and sensory analysis indicate that the quality of the wines made from the whole bunches collected at TH-7, TH and TH+10 differed, TH providing the highest quality wines. In parallel, gene expression was studied with Qiagen/Operon microarrays using two types of samples, i.e. whole bunches and berries sorted by density. Only 12 genes were consistently up- or down-regulated in whole bunches and density sorted berries for the two years studied in Chardonnay. 52 genes were differentially expressed between the TH-7 and TH samples. In order to determine whether these genes followed a similar pattern of expression during the late stagesof berry ripening in a red cultivar, nine genes were selected for RT-PCR analysis with Cabernet Sauvignon grown under two different temperature regimes affecting the precocity of ripening. The expression profiles and their relationship to ripening were confirmed in Cabernet Sauvignon for seven genes, encoding a carotenoid cleavage dioxygenase, a galactinol synthase, a late embryogenesis abundant protein, a dirigent-like protein, a histidine kinase receptor, avalencene synthase and a putative S-adenosyl-L-methionine:salicylic acid carboxyl methyltransferase. Conclusions: This set of up- and down-regulated genes characterize the late stages of berry ripening in the two cultivars studied, and are indirectly linked to wine quality. They might be used directly or indirectly to design immunological, biochemical or molecular tools aimed at the determination of optimal ripening in these cultivars.

Dataset Information

Proteomic and transcriptomic responses to thiamethoxam in the Sweetpotato whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae)

Publications

Transcriptomic and proteomic responses of sweetpotato whitefly, Bemisia tabaci, to thiamethoxam.

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