In this study,the methylation-sensitive amplification polymorphism(MSAP)was used to compare the genomic DNA methylation level of muscle,gill and hepatopancreas of Portunus trituberculatus subjected to salinity 12 for ...In this study,the methylation-sensitive amplification polymorphism(MSAP)was used to compare the genomic DNA methylation level of muscle,gill and hepatopancreas of Portunus trituberculatus subjected to salinity 12 for 30 days to illustrate the epigenetic mechanism of osmoregulation.Thirty primers were used to analyze the difference of methylation level of different tissues.The results showed that the baseline methylation level of muscle,hepatopancreas and gill was 47.31%,22.94%and 17.69%,respectively.After exposed to low salinity stress,the methylation epiloci changed in the three tissues.Both demethylation and methylation processes occurred under low salinity stress.The methylation ratio decreased in muscle and gill but increased in hepatopancreas.These results indicated that DNA methylation is tissue-specific when P.trituberculatus responds to low salinity.展开更多
基金supported by the grants from the National Natural Science Foundation of China (No. 4147 6124)the Natural Science Foundation of Zhejiang Province (No. LY17C190005)+3 种基金the Major Agriculture Program of Ningbo (No. 2017C110007)the Ningbo Science and Technology Project (No. 2016C10037)the Open Fund of Ningbo University (No. xkzsc1505)K C Wong Magana Fund in Ningbo University
文摘In this study,the methylation-sensitive amplification polymorphism(MSAP)was used to compare the genomic DNA methylation level of muscle,gill and hepatopancreas of Portunus trituberculatus subjected to salinity 12 for 30 days to illustrate the epigenetic mechanism of osmoregulation.Thirty primers were used to analyze the difference of methylation level of different tissues.The results showed that the baseline methylation level of muscle,hepatopancreas and gill was 47.31%,22.94%and 17.69%,respectively.After exposed to low salinity stress,the methylation epiloci changed in the three tissues.Both demethylation and methylation processes occurred under low salinity stress.The methylation ratio decreased in muscle and gill but increased in hepatopancreas.These results indicated that DNA methylation is tissue-specific when P.trituberculatus responds to low salinity.
