Unité d’Ecologie, Systématique et Evolution, UMR CNRS 8079, Univ. Paris-Sud, Paris-Sud, Orsay Cedex 91405, France

Correction

After publication of our work

Maximum likelihood tree of the biotin carboxylase (BC) domain

**Maximum likelihood tree of the biotin carboxylase (BC) domain.** This tree is based on 284
representative sequences and 384 conserved sites and was arbitrarily roosted on the bacterial
ACC-related sequences. Numbers at nodes indicate bootstrap values higher than 50. Triangles
correspond to collapsed groups of eukaryotes and Proteobacteria. Colors on leaves represent the
affiliation of the sequences to their respective domain of life: archaea (red), bacteria (blue) and
eukaryotes (green). Bars on the right report the functional assignment of the sequences; sequences
that are not in front of any bar are assumed to bear an acyl-CoA carboxylase activity.

Maximum likelihood tree of archaeal and bacterial biotin carboxylase (BC) domain sequences

**Maximum likelihood tree of archaeal and bacterial biotin carboxylase (BC) domain
sequences.** This tree is based on 196 representative sequences and 322 conserved sites and was
arbitrarily rooted on the PYC-related sequences. Numbers at nodes indicate bootstrap robustness
values higher than 50. Colors on leaves represent the affiliation of the sequences to their
respective domain of life: archaea (red), bacteria (blue) and eukaryotes (green). Bars on the right
report the functional assignment of the sequences; sequences that are not in front of any bar are
assumed to bear an acyl-CoA carboxylase activity.

Maximum likelihood tree of CoA-substrate related carboxyl tranferase (CCT) domain sequences

**Maximum likelihood tree of CoA-substrate related carboxyl tranferase (CCT) domain
sequences.** This tree is based on 179 representative sequences and 438 conserved sites and was
midpoint rooted. Numbers at nodes indicate bootstrap robustness values higher than 50. Triangles
correspond to collapsed groups of eukaryotes. Colors on leaves represent the affiliation of the
sequences to their respective domain of life: archaea (red), bacteria (blue) and eukaryotes (green).
Bars on the right report the functional assignment of the sequences; sequences that are not in front
of any bar are assumed to bear an acyl-CoA carboxylase activity.

Maximum likelihood tree of pyruvate carboxylase carboxyl tranferase (PCT) domain sequences

**Maximum likelihood tree of pyruvate carboxylase carboxyl tranferase (PCT) domain
sequences.** This tree is based on 126 representative sequences and 432 conserved sites and was
midpoint rooted. Numbers at nodes indicate bootstrap robustness values higher than 50. Colors on
leaves represent the affiliation of the sequences to their respective domain of life: archaea (red),
bacteria (blue) and eukaryotes (green). Bars on the right report the functional assignment of the
sequences; sequences that are not in front of any bar have unknown function.

Competing interests

The authors declare no competing interests.

Authors' contributions

JL and DM designed research; JL carried out phylogenetic analyses, and JL and DM wrote the manuscript. Both authors read and approved the final version.