Transcriptome analyses reveal alterations in muscle metabolism, immune responses and reproductive behavior of Japanese mantis shrimp (Oratosquilla oratoria) at different cold temperature

Publication date: Available online 5 August 2019Source: Comparative Biochemistry and Physiology Part D: Genomics and ProteomicsAuthor(s): Fangrui Lou, Tianxiang Gao, Zhiqiang HanAbstractLow temperature reduction is thought to cause widespread effects on the physical and behavioral traits of marine organisms, which include metabolic processes, immune responses, and reproductive behavior. Crustaceans are generally considered sensitive to temperature reduction due to the lack of efficient regulators. To better understand the molecular regulatory mechanisms of crustacean exposure to cold stress, Japanese mantis shrimp (Oratosquilla oratoria) was chosen as a representative crustacean. Transcriptomic responses in O. oratoria from five temperatures (25 °C, 22 °C, 19 °C, 16 °C, and 13 °C) were studied using RNA-seq. A total of 64.91 Gb of clean transcriptomic data were generated in 10 libraries and then spliced into 52,107 unigenes with an average length of 1089 bp and an N50 length of 1872 bp. A total of 14,841 unigenes was annotated in at least one database using Blastx alignment. Compared with the control temperature (25 °C), 7, 21, 58, and 236 unigenes were significantly differentially expressed at 22 °C, 19 °C, 16 °C, and 13 °C, respectively. GO analysis showed that 6, 20, 27, and 35 terms were significantly enriched at 22 °C, 19 °C, 16 °C, and 13 °C, respectively. In addition, 2, 5, 2, and 10 significant pathways were presented at...
Source: Comparative Biochemistry and Physiology Part D: Genomics and Proteomics - Category: Genetics & Stem Cells Source Type: research