Table 1.

Summary of the genetic potential for motility and chemotaxis in the analyzed metagenome assembled genomes (MAGs) and genomes of cultivated heterotrophic bacterial diazotrophs (HBDs).

MAG collection or isolate collection	MAGs or isolates in the collection	Containing nifH	HBDs in collection	HBDs containing che, fli, and mot genes
Tara Oceans	957	10	9	9
AMI	741	9	8	7
Marine HBDs	4	4	4	3

See “Materials and methods” for references.

nifH nitrogenase reductase Fe-Subunit, che proteins involved in various stages of cellular chemotaxis such as the sensing of chemoattractants, intracellular signal transduction and transcriptional regulation, fli proteins involved in flagellar assembly, mot motor proteins involved in flagellar movement.