From: Updated clusters of orthologous genes for Archaea: a complex ancestor of the Archaea and the byways of horizontal gene transfer
No. of gains
Clade
1,725
LACA
1,642
Halobacteriales
737
Sulfolobales
705
Thermococcales
704
deep Euryarchaeota (Eury- without Thermococcales)
494
Thaumarchaeota
439
Methanomicrobia
431
TACK superphylum
420
Methanosarcina
416
Thermoplasmatales