» Articles » PMID: 34745056

Comparative Genomic Analysis of Isolated From Bovine Mastitis in China

Overview
Journal Front Microbiol
Specialty Microbiology
Date 2021 Nov 8
PMID 34745056
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

subsp. (SDSD) is one of the most prevalent pathogens causing bovine mastitis worldwide. However, there is a lack of comprehensive information regarding genetic diversity, complete profiles of virulence factors (VFs), and antimicrobial resistance (AMR) genes for SDSD associated with bovine mastitis in China. In this study, a total of 674 milk samples, including samples from 509 clinical and 165 subclinical mastitis cases, were collected from 17 herds in 7 provinces in China from November 2016 to June 2019. All SDSD isolates were included in phylogenetic analysis based on 16S rRNA and multi-locus sequence typing (MLST). In addition, whole genome sequencing was performed on 12 representative SDSD isolates to screen for VFs and AMR genes and to define pan-, core and accessory genomes. The prevalence of SDSD from mastitis milk samples was 7.57% (51/674). According to phylogenetic analysis based on 16S rRNA, 51 SDSD isolates were divided into 4 clusters, whereas based on MLST, 51 SDSD isolates were identified as 11 sequence types, including 6 registered STs and 5 novel STs (ST521, ST523, ST526, ST527, ST529) that belonged to 2 distinct clonal complexes (CCs) and 4 singletons. Based on WGS information, 108 VFs genes in 12 isolates were determined in 11 categories. In addition, 23 AMR genes were identified in 11 categories. Pan-, core and accessory genomes were composed of 2,663, 1,633 and 699 genes, respectively. These results provided a comprehensive profiles of SDSD virulence and resistance genes as well as phylogenetic relationships among mastitis associated SDSD in North China.

Citing Articles

Virulence of Bacteria Causing Mastitis in Dairy Cows: A Literature Review.

Tong X, Barkema H, Nobrega D, Xu C, Han B, Zhang C Microorganisms. 2025; 13(1).

PMID: 39858935 PMC: 11767654. DOI: 10.3390/microorganisms13010167.


Molecular characterization of and causing bovine mastitis in the southern region of Bangladesh.

Farzana Z, Saha A, Siddiki A J Adv Vet Anim Res. 2023; 10(2):178-184.

PMID: 37534066 PMC: 10390688. DOI: 10.5455/javar.2023.j667.

References
1.
Diaz-Dinamarca D, Hernandez C, Escobar D, Soto D, Munoz G, Badilla J . Mucosal Vaccination with -Secreting Surface Immunological Protein Induces Humoral and Cellular Immune Protection against Group B in a Murine Model. Vaccines (Basel). 2020; 8(2). PMC: 7349291. DOI: 10.3390/vaccines8020146. View

2.
Depardieu F, Podglajen I, Leclercq R, Collatz E, Courvalin P . Modes and modulations of antibiotic resistance gene expression. Clin Microbiol Rev. 2007; 20(1):79-114. PMC: 1797629. DOI: 10.1128/CMR.00015-06. View

3.
Baylay A, Ivens A, Piddock L . A novel gene amplification causes upregulation of the PatAB ABC transporter and fluoroquinolone resistance in Streptococcus pneumoniae. Antimicrob Agents Chemother. 2015; 59(6):3098-108. PMC: 4432121. DOI: 10.1128/AAC.04858-14. View

4.
Roy S, Zhu Y, Ma J, Roy A, Zhang Y, Zhong X . Role of ClpX and ClpP in Streptococcus suis serotype 2 stress tolerance and virulence. Microbiol Res. 2019; 223-225:99-109. DOI: 10.1016/j.micres.2019.04.003. View

5.
Botrel M, Haenni M, Morignat E, Sulpice P, Madec J, Calavas D . Distribution and antimicrobial resistance of clinical and subclinical mastitis pathogens in dairy cows in Rhône-Alpes, France. Foodborne Pathog Dis. 2009; 7(5):479-87. DOI: 10.1089/fpd.2009.0425. View