When the first Archaeal genome, Methanococcus jannaschii, had been sequenced completely in 1996, it was found that the genes in the genome of Methanococcus jannaschii involved in DNA replication, transcription, and translation were more related to their counterparts in eukaryotes than to those in other prokaryotes.
Cando se secuenciou completamente o primeiro xenoma de arqueas en 1996, o da especie Methanococcus jannaschii, viuse que os xenes de Methanococcus jannaschii implicados na replicación do ADN, transcrición, e tradución, estaban máis relacionados cos dos eucariotas que cos dos procariotas.