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ABSTRACT: liver transcriptome of the water vole (Arvicola terrestris)

PROVIDER: PRJNA545200 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9140870_1.fastq.gz	Fastqsanger.gz
	SRR9140870_2.fastq.gz	Fastqsanger.gz
	SRR9140871_1.fastq.gz	Fastqsanger.gz
	SRR9140871_2.fastq.gz	Fastqsanger.gz
	SRR9140872_1.fastq.gz	Fastqsanger.gz

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Project description:The water vole Arvicola terrestris (= Arvicola amphibious L.) is endemic in Europe where its outbreak generates severe economic losses for farmers. Our project aimed at deciphering the modalities of chemical communication in this species, to develop new sustainable methods for populations control. The water vole, as well as other rodents, uses specific urination sites as territorial and sex pheromone markers, the chemical and biochemical identification of which is still unknown. Lateral scent glands and urine samples were collected from wild males and females caught in the field, at different periods of the year. Volatile signals were searched in urine by SPME/GC-MS, and in lateral scent glands by solvent extraction followed by GC-MS. The volatile composition of urine was analysed for each individual and not on pooled samples, showing no significant difference between males and females. Lateral scent glands contained some volatile components (pyrazines, alcohols, terpenes), and mostly long chain fatty acid esters, again without quantitative and qualitative differences between sexes. Conversely, the urinary protein content, analysed by 1D- and 2D-electrophoresis is different, as only males secrete high levels of lipocalins, whatever the reproduction period. The proteins were identified by mass spectrometry and “de novo” analysis (Orbitrap), which provided specific information to design primers for PCR amplification of cDNA sequences. Thus, urinary proteins were characterized by direct amplification from liver RNA. The identified protein sequences are closed to those of Myodes glareolus, a closely related species of Cricetidae, and to hamster Aphrodisin.

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