TABLE 1

Trait depth of metal uptake genes with significant phylogenetic signal

Gene/proteinaMetal(s) or processτDb
RoseobacterSAR11
MeanSDMeanSD
afuAFe3+0.06380.0040
PBP2 Fbp-like 1*Fe3+0.04140.00200.04070.0017
PBP2 FutA1-like***Fe3+0.05650.00680.17810.0091
hutBHeme0.02740.0015
TBDT MCL2Catecholate0.03310.0015
fatBCatecholate0.03630.0016
TBDT MCL3Hydroxamate0.03550.0015
fhuDHydroxamate0.04620.0021
SIPSiderophore utilization0.04760.0021
ZIPFe2+, Zn2+0.03860.0028
znuA***Zn2+0.02710.00240.05620.0021
psaAMn2+0.04230.0056
troA-aMn2+, Zn2+0.02630.0014
cbtACo2+0.03070.0018
cbtBCo2+0.03460.0024
corA***Co2+, Ni2+, Mg2+0.04000.00250.27850.0127
btuFCo2+ as vitamin B120.08090.0046
copZ***Cu+/2+, other heavy metals0.02680.00130.00700.0010
TBDT MCL5Unknown/multiple0.04410.0025
Total TBDT***Multiple0.04930.00390.06520.0032
  • a Single asterisks indicate a small Cohen's d effect size (d < 0.5) between Roseobacter and SAR11 means, and three asterisks indicate a large effect size (d > 1).

  • b Values in bold denote nonrandom phylogenetic distribution, as assessed by the consenTRAIT algorithm (P < 0.1), and those in italics denote nonrandom phylogenetic distribution from the independent D metric for phylogenetic dispersion of Fritz and Purvis (68) [P(D)random < 0.05]. For all transporters shared by Roseobacter and SAR11, differences in trait depth for metal uptake traits are significant (Student's t test, P < 0.05).