Received: 28 May 2019
Accepted: 12 August 2019
First Online: 13 September 2019
Ethics approval and consent to participate
: All applicable international, national, and institutional guidelines for the care and use of animals were followed. The study was approved by the Animal Subjects Research Committee of the Institute of Biology at Irkutsk State University.
: Not applicable.
: The authors declare that they have no competing interests.