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Euhadra

ABSTRACT: Evolutionary history of inshore oceanic island land snails diversified in shell colour

PROVIDER: PRJDB15358 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	DRR446457.fastq.gz	Fastqsanger.gz
	DRR446458.fastq.gz	Fastqsanger.gz
	DRR446459.fastq.gz	Fastqsanger.gz
	DRR446460.fastq.gz	Fastqsanger.gz
	DRR446461.fastq.gz	Fastqsanger.gz

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Project description:In recent years, increasing levels of dissolved carbon dioxide in seawater have led to an increase of ocean acidification (OA), which constitutes a major threat to marine ecosystems. As an important economically marine bivalve, Mactra veneriformis is highly susceptible to ocean acidification. In this study, we recorded and observed the mortality rate, oxygen consumption rate and ammonia excretion rate of different shell colour groups of M. veneriformis under the stress of ocean acidification (pH=7.6), and conducted transcriptome analysis of the mantle tissues of M. veneriformis with white and purple shell colours in the acidified group (pH=7.6) and the control group (pH=8.1) under the two conditions, which showed that there was a significant difference in mortality rate between the acidified group and the control group at day 30, but there was a significant difference in mortality rate between the white colors group and the purple colors group at day 30, which was not significant. The results showed that there was a significant difference in mortality between the acidified and control groups at day 30, but the difference in mortality between the white and purple shell colour groups at day 30 was not significant. In the transcriptome analysis, fatty acid synthase gene was up-regulated in two shell colours of M. veneriformis under acidification stress, which may be a molecular compensatory mechanism to reduce the susceptibility of organisms to oxidative damage of lipids; tyrosinase gene was up-regulated, which may be a compensatory mechanism of Tyr's regulatory mechanism to the formation of shell damages under acidification; carbonic anhydrase gene was up-regulated in the purple group of M. veneriformis under acidification stress, which may be a compensatory mechanism for the acidity of M. veneriformis to cope with environmental stress; the white group of M. veneriformis under acidification stress was up-regulated. The carbonic anhydrase gene was up-regulated in the purple group under acidification stress, which may be an acidity compensation mechanism of M. veneriformis in response to the environmental stress.

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Euhadra

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