Related how?
Biota
(Life)
Prokaryotes
(Prokaryota)
Bacteria
(Bacterium)
Negibacteria
(Rjheekñndd)
Proteobacteria
(Purple bacteria & relatives)
Alphaproteobacteria
Rickettsidae (
20742840
)
Children (1 direct children, 2 direct and indirect children):
Pelagibacterales
(tree size 1)