期刊
FISH & SHELLFISH IMMUNOLOGY
卷 103, 期 -, 页码 403-408出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fsi.2020.05.040
关键词
LncMSEN2; Pearl oyster; Exoskeleton; Biomineralization; Lipopolysaccharide stimulation
资金
- Natural Science Foundation of Guangdong Province [2018A030310666, 2019A1515011096]
- Innovation Team Project from the Department of Education of Guangdong Province [2017KCXTD016]
- Modern Agricultural Industrial System [CARS-049]
- Guangdong Provincial Special Fund For Modern Agriculture Industry Technology Innovation Teams, Department of Agriculture and Rurual Affairs of Guangdong Province [2019KJ146]
Long non-coding RNAs (lncRNAs) play regulatory roles in various biological processes, including exoskeleton formation and immune response. The exoskeleton-based mantle-shell defense system is an important defense mechanism in shellfish. In this study, we found a novel lncRNA, herein formally named, LncMSEN2, from the pearl oyster Pinctada fucuta martensii, and its sequence was validated via polymerase chain reaction (PCR). LncMSEN2 was highly expressed in mantle tissues, especially in the central region (P < 0.05), and was also expressed in the pearl sac as detected by quantitative real-time PCR. In situ hybridization experiments revealed that LncMSEN2 had a strong positive signal in the inner and outer epidermal cells of the mantle pallial and central regions. RNA interference experiments showed that interference of LncMSEN2 expression with dsRNA in mantle tissues led to an abnormal crystal structure of the nacre. In addition, LncMSEN2 expression significantly increased 6 h after lipopolysaccharide stimulation in mantle tissues (P < 0.05). These results indicated that LncMSEN2 may be a novel regulator of the mantle-shell defense system of pearl oyster.
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