Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (2): 505-519.doi: 10.11843/j.issn.0366-6964.2022.02.017

• PREVENTIVE VETERINARY MEDICINE • Previous Articles     Next Articles

Whole Gene Analysis of 7 Mycoplasma synoviae Strains from Chicken

LIU Lijia, WANG Yu, ZHANG Huanrong*, WANG Jiabo*   

  1. College of Animal Husbandry and Veterinary Medicine, Southwest Minzu University, Chengdu 610041, China
  • Received:2021-05-07 Online:2022-02-23 Published:2022-03-02

Abstract: In order to understand the genetic diversity of Mycoplasma synoviae (MS), seven MS strains isolated from Sichuan were sequenced and analyzed by bioinformatics. Illumina HiSeq platform and PE library were combined for whole genome sequencing, and the whole genome were annotated by several database. The complete genomes of 7 MS isolates were compared with those of 8 MS strains included in NCBI by MEGAX software. The results showed that the gene numbers, species and virulence factors of 4 MS strains MS251, MS254, MS221, MS231 isolated from the same chicken farm were the same or had little difference, while the gene number and virulence factor numbers of MS isolates MS12H, MS1G and MSK1 isolated from other three different chicken farms were quite different. Comparing the 7 MS Sichuan isolates with the 8 MS strains published by NCBI, it was found that the Sichuan MS isolates were significantly different from Brazilian MS53, American WVU-1853, Australian 86079/7 NS and vaccine strain MS-H, however, most similar to Henan HN01, China. There was genetic diversity among MS isolates from different farms and within the same farm. This study provided a necessary theoretical basis for further study of the pathogenic mechanism of MS isolates, the development of MS subunit vaccine and the establishment of specific detection technology.

Key words: Mycoplasma synovium, whole genome, prediction results, evolutionary analysis, linear analysis

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