Borrelia yangtzensis sp. nov., a rodent-associated species in Asia, is related to Borrelia valaisiana

Author:

Margos Gabriele1,Chu Chen-Yi2,Takano Ai3,Jiang Bao-Gui2,Liu Wei2,Kurtenbach Klaus,Masuzawa Toshiyuki4,Fingerle Volker1,Cao Wu-Chun2,Kawabata Hiroki5

Affiliation:

1. German National Reference Centre for Borrelia at the Bavarian Health and Food Safety Authority, Veterinärstrasse 2, 85764 Oberschleissheim, Germany

2. Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, PR China

3. Yamaguchi University, Joint Faculty of Veterinary Medicine, Yoshida 1677-1, Yamaguchi, Yamaguchi 753-8515, Japan

4. Chiba Institute of Science, Laboratory of Microbiology and Immunology, Shiomi-cho 3, Choshi, Chiba 288-0025, Japan

5. National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan

Abstract

Twenty-nine isolates of Lyme borreliosis (LB) group spirochaetes collected from ticks and rodents in China and Japan were included in a multilocus sequence analysis (MLSA). Using a different typing system, three of these strains had previously been identified as being divergent from other LB spirochaete species and the name ‘Borrelia yangtze’ sp. nov. was proposed. The data presented here confirm that the genetic distance, calculated using sequences of MLSA housekeeping genes, to other known LB group spirochaete species was < 95 % and to Borrelia valaisiana was 96.67 % (which represents the most closely related species within the group of LB spirochaetes). This and the fact that these strains are ecologically distinct from B. valaisiana (rodent-transmitted vs bird-transmitted) provide strong support for the validation of the proposed species status. We suggest the name Borrelia yangtzensis sp. nov. The type strain is Okinawa-CW62T ( = DSM 24625T = JCM 17189T).

Funder

National Science Fund for Distinguished Young Scholars

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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