Funding for this research was provided by:
National Natural Science Foundation of China (31730098, 31702328, 31430088)
Key Research and Development Project of Hainan Province (2016NK2130)
Received: 28 October 2019
Accepted: 4 February 2020
First Online: 4 March 2020
Ethics approval and consent to participate
: All experiments were approved by the Animal Care Committee of Hunan Normal University and followed the guidelines statement of the Administration of Affairs Concerning Animal Experimentation of China. All fish used as the samples were anesthetized with 100 mg/L MS-222 (Sigma-Aldrich, St. Louis, MO, United States) before dissection and all efforts were made to minimize suffering.
: Not applicable.
: The authors declared that they had no competing interests.