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. 2021 Jul 15;12:686413. doi: 10.3389/fmicb.2021.686413

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Copyright © 2021 Alves-Barroco, Caço, Roma-Rodrigues, Fernandes, Bexiga, Oliveira, Chambel, Tenreiro, Mato and Santos-Sanches.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Dendrogram based on spacer CRISPR IIA cluster of Streptococcus dysgalactiae subsp. dysgalactiae isolates of mastitis in cattle collected in 2002–2003 (Rato et al., 2010, 2011, 2013) (VSD1 to VSD19—collection I) and 2011–2013 (VSD20 to VSD56—collection II). Streptococcus pyogenes phages encode genes speC, speK, speL, speM, spd1, and sdn. The dendrogram was obtained by means of Dice coefficient and the agglomerative clustering of the unweighted pair group method with arithmetic mean (UPGMA).