Mycoplasma agassizii is one of the known causative agents of upper respiratory tract disease (URTD) in Mojave desert tortoises (Gopherus agassizii) and in gopher tortoises (Gopherus polyphemus). We sequenced the genomes of M. agassizii strains PS6T (ATCC 700616) and 723 (ATCC 700617) isolated from the upper respiratory tract of a Mojave desert tortoise and a gopher tortoise, respectively, both with signs of URTD. The PS6T genome assembly was organized in eight scaffolds, had a total length of 1,274,972 bp, a G + C content of 28.43%, and contained 979 protein-coding genes, 13 pseudogenes and 35 RNA genes. The 723 genome assembly was organized in 40 scaffolds, had a total length of 1,211,209 bp, a G + C content of 28.34%, and contained 955 protein-coding genes, seven pseudogenes, and 35 RNA genes. Both genomes exhibit a very similar organization and very similar numbers of genes in each functional category. Pairs of orthologous genes encode proteins that are 93.57% identical on average. Homology searches identified a putative cytadhesin. These genomes will enable studies that will help understand the molecular bases of pathogenicity of this and other Mycoplasma species.

中文翻译：

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从上呼吸道疾病的乌龟中分离出无性支原体PS6 ^T和723菌株的高质量基因组序列

无性支原体是莫哈韦沙漠乌龟（Gopherus agassizii）和地鼠（Gopherus polyphemus）中上呼吸道疾病（URTD）的已知病原之一。我们对分别从莫哈韦沙漠乌龟和地鼠乌龟的上呼吸道分离的无性分枝杆菌菌株PS6T（ATCC 700616）和723（ATCC 700617）的基因组进行了测序，均带有URTD迹象。PS6T基因组装配体由八个支架组成，总长为1,274,972 bp，G + C含量为28.43％，并包含979个蛋白质编码基因，13个假基因和35个RNA基因。723个基因组装配体组织在40个支架中，总长度为1,211,209 bp，G + C含量为28.34％，包含955个蛋白质编码基因，7个假基因和35个RNA基因。在每个功能类别中，两个基因组均显示出非常相似的组织和数量相似的基因。直系同源基因对编码的蛋白质平均具有93.57％的同一性。同源性搜索确定了假定的细胞粘附素。这些基因组将有助于开展研究，帮助了解该支原体和其他支原体物种的致病性分子基础。