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Table 1 The phylogenetic signals of the variables analyzed in this study

From: A positive correlation between GC content and growth temperature in prokaryotes

 

Bacteria

  

Archaea

  

Traits

n

Pagel′s λ

P

n

Pagel′s λ

P

Tmax

681

0.957

3.5 × 10−178

155

1.000

1.5 × 10−72

Topt

681

0.950

1.1 × 10− 196

155

0.988

5.7 × 10−70

Tmin

681

0.933

6.6 × 10−152

155

0.966

1.9 × 10−53

GCw

681

1.000

2.6 × 10− 294

155

1.000

5.8 × 10−60

GCp

681

1.000

4.7 × 10− 292

155

1.000

2.4 × 10−59

GC4

681

1.000

4.8 × 10− 238

155

1.000

5.1 × 10−53

GCnon

681

1.000

8.6 × 10− 305

155

1.000

2.0 × 10−65

GCtRNA

681

0.998

6.0 × 10− 275

155

1.000

2.1 × 10−91

GC5S

646

1.000

7.0 × 10−178

130

1.000

9.1 × 10−51

GC16S

681

0.999

8.7 × 10− 250

155

0.996

3.7 × 10−86

GC23S

681

1.000

2.1 × 10− 245

155

1.000

6.8 × 10−83

  1. Tmax, Topt, and Tmin represent maximal, optimal, and minimal growth temperature, respectively; GCw, GCp, GC4, GCtRNA, GC5S, GC16S, GC23S, and GCnon represent the GC contents of the whole genome, the protein-coding sequences, the fourfold degenerate sites, the genes coding tRNAs, the genes coding 5S rRNA, the genes coding 16S rRNA, the genes coding 23S rRNA, and the non-coding DNA (including intergenic sequences and untranslated regions of mRNA), respectively. The phylogenetic signals of the chromosomal, plasmid, core and accessory genes are also very close to one and deposited in Additional file 1: Tables S1-S4