Phylogenetic relationship among field isolates of mycoplasmas and acholeplasmas in two South Australian dairy herds based on sequencing of a short 16S rRNA gene fragment

Al-Farha, Abd Al-Bar (2020) Phylogenetic relationship among field isolates of mycoplasmas and acholeplasmas in two South Australian dairy herds based on sequencing of a short 16S rRNA gene fragment. In: IMDC-SDSP 2020, 28-30 June 2020, Cyberspace.

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Abstract

Mycoplasma mastitis has been recognized as an emerging disease with a significant impact on the dairy industry. This study aimed to determine the genotypic distribution of some Mycoplasma and Acoleplasma spp isolated from two commercial dairy farms in South Australia based on 16S rRNA sequencing, and compare their evolutionary relationship to some similar isolates from elsewhere. Neighbour-joining phylogeny of 16S rRNA demonstrated the involvement of four different spp. isolated from Farm 1 including: M. bovis, M. bovirhinis, Acholeplasma laidlawii and A. axanthum while M. alkalescens was isolated from Farm 2. Two strains of M. bovis showed similarity to Egyptian, Hungarian and Chinese strains. M. bovirhinis clustered with the Egyptian group. Mycoplasma alkalescens grouped with Swedish and Japanese strains. The Acholeplasma group showed two distinct clusters of A. laidlawii and A. axanthum. Determination of the species/genera involved in mastitis may enhance the molecular epidemiology and in-turn can contribute to controlling strategies of the disease.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: mycoplasma acholeplasma mastitis phylogeny 16s rrna cattle
Subjects: Q Science > QA Mathematics > QA76 Computer software
Depositing User: EAI Editor III.
Date Deposited: 03 Mar 2021 08:56
Last Modified: 03 Mar 2021 08:56
URI: https://eprints.eudl.eu/id/eprint/1002

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