Table 2. New HGT events for each Se utilization trait.
| Se trait | From (donor) | To (recipient) | Occurrence of other Se trait in recipient |
|---|---|---|---|
| Sec | Microlunatus phosphovorus NM-1 (Actinobacteria/Propionibacterineae) | Arthrobacter crystallopoietes BAB-32 (Actinobacteria/Micrococcineae) | — |
| Nakamurella multipartita DSM 44233 (Actinobacteria/Frankineae) | Arthrobacter sp. 162MFSha1.1 (Actinobacteria/Micrococcineae) | — | |
| Pseudomonas stutzeri A1501 (Gammaproteobacteria/Pseudomonadales) | Marinobacter daepoensis DSM 16072 (Gammaproteobacteria/Alteromonadales) | SeU | |
| Aeromonas hydrophila pc104A (Gammaproteobacteria/Aeromonadales) | Psychromonas sp. CNPT3 (Gammaproteobacteria/Alteromonadales) | SeU | |
| SeU | Bacillales species (Firmicutes/Bacillales) | Lacticigenium naphtae DSM 19658 (Firmicutes/Lactobacillales) | — |
| Se-cofactor | Clostridium species (Firmicutes/Clostridia) | Fusobacterium sp. 11_3_2 (Fusobacteria) | — |
| Clostridium species (Firmicutes/Clostridia) | Treponema phagedenis F0421 (Spirochaetes) | — |
Abbreviation: HGT, horizontal gene transfer.