Author Contributions
This manuscript was written by S-H Kim and W-H Jheong: experiment and data analysis were performed by S-H Kim, S-I Lee, H-G Jeong, J-Yoo, K Son, H-S-Jeong and study was designed by S-H Kim and W-H Jheong. Isolate partial sequence data from this study were deposited in GenBank with the accession numbers MT300320 to MT300325.