# A Genomic Survey of Signalling in the Myxococcaceae
## 3 Results  
### Selection of Sets of Genomes  
To investigate variations in signalling proteins within species and within genera, we selected ten or more genomes in each of the four taxa. Ten _M. xanthus_ strains were selected, including _M. xanthus_ DK1622, which is the single best-characterised myxobacterium. We selected the type strains of all 11 discrete species within the _Myxococcus_ genus [7], and all ten type strains in its sister genus _Corallococcus_[6]. Finally, we selected ten isolates of _C. exigus_, which is the most commonly isolated species within the _Corallococcus_ genus [28]. If more than one genome assembly was available for a strain, the assembly with the smallest number of contigs was chosen.  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline A. & & & & & & & \\ \hline
**Genus** & **Species** & **Strain** & **Conigs** & **Size (Mbp)** & **\% GC** & **CDS** & **Accession** & **Reference** \\ \hline Myrxoccus & _santinus_ & A8022 & 257 & 9.06 & 68.9 & 6995 & VHL00000000 & [11] \\ \hline Myrxoccus & _santinus_ & A80248 & 365 & 9.06 & 68.9 & 7013 & SRLY00000000 & [11] \\ \hline Myrxoccus & _santinus_ & A8056 & 230 & 9.11 & 69.1 & 7065 & VHL00000000 & [11] \\ \hline Myrxoccus & _santinus_ & CA005 & 227 & 9.11 & 68.9 & 7175 & SRLY00000000 & [11] \\ \hline Myrxoccus & _santinus_ & CA006 & 360 & 9.05 & 68.9 & 6991 & SRLY00000000 & [11] \\ \hline Myrxoccus & _santinus_ & CA010 & 250 & 9.05 & 68.9 & 6981 & VHL00000000 & [11] \\ \hline Myrxoccus & _santinus_ & CA018 & 727 & 9.07 & 68.8 & 7102 & JAEAEA00000000 & [9] \\ \hline Myrxoccus & _santinus_ & CA023 & 235 & 9.08 & 68.9 & 7047 & JAEAEA000000000 & [9] \\ \hline Myrxoccus & _santinus_ & CA027 & 252 & 9.05 & 68.9 & 7001 & WBSK00000000 & [9] \\ \hline Myrxoccus & _santinus_ & DK1622 & 1 & 9.14 & 68.9 & 7216 & CCF\_000012685 & [36] \\ \hline \multicolumn{8}{c}{} & \multicolumn{8}{c}{} & \multicolumn{8}{c}{} & \multicolumn{1}{c}{9.08 \(\pm\) 0.03} & \multicolumn{1}{c}{68.9 \(\pm\) 0.1} & \multicolumn{1}{c}{7059 \(\pm\) 82} \\ \hline \multicolumn{8}{c}{} & \multicolumn{8}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \multicolumn{1}{c}{} & \\ \hline
**Genus** & **Species** & **Strain** & **Conigs** & **Size (Mbp)** & **\% GC** & **CDS** & **Accession** & **Reference** \\ \hline Myrxoccus & _santinus_/_micros_ & DSM 2260 & 57 & 9.24 & 69.2 & 7340 & PNAJ000000000 & JGI \\ \hline Myrxoccus & _servary_ & AR053B & 124 & 11.39 & 68.9 & 8751 & JAADY000000000 & [7] \\ \hline Myrxoccus & _sfalves_ & DSM 16325 & 42 & 10.82 & 70.0 & 8318 & FOIB00000000 & JGI \\ \hline Myrxoccus & _sarsupus_ & Mkuupus & 1 & 9.49 & 69.2 & 7069 & CCA\_000280925 & [3] \\ \hline Myrxoccus & _lus  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline C: & & & & & & \\ \hline
**Genus** & **Species** & **Strain** & **Conigs** & **Size (Mbp)** & **\% GC** & **CDS** & **Accession** & **Reference** \\ \hline _Conallococcus_ & _alwaysurg  
The strains selected, their taxonomy and the characteristics of their genome sequences are presented in Table 1. As would be expected, genome metrics are more variable amongst the type strains within a genus than among strains from within a single species (with the exception of _C. exigus_ strains, which have an unusually variable number of CDS). All strains possess typical myxobacterial genomes: large (9-13.5 Mbp), with high % GC contents (69-71%).