Table 3: The distinguishing characteristics of the putative ecotypes identified in communities A, B and H

From: Speedy speciation in a bacterial microcosm: new species can arise as frequently as adaptations within a species

Putative ecotypeCommunityMarker moietyMorphotypeMat formation
αA, B and HLT and MT1None
A1aALT1None
A1bAMT1None
A2ALT2Weak
B1BLT1None
B3BMT3None
B4BLT4Strong
H5aHLT5None
H5bHLT5Weak
H6HLT6None
H7HMT7None
H8HMT8None
  1. ‘Weak’ mat formation indicates the presence of a delicate surface mat, easily disrupted by agitation of the microcosm tube; ‘strong’ indicates a thick and highly durable mat, resistant even to extended vortexing of the microcosm tube.