FIGURE 2. Southern blot analysis of DNA from Ignicoccus sp. and the 'N. equitans'–Ignicoccus sp. coculture, treated with restriction enzymes.
From the following article:
A new phylum of Archaea represented by a nanosized hyperthermophilic symbiont
Harald Huber, Michael J. Hohn, Reinhard Rachel, Tanja Fuchs, Verena C. Wimmer and Karl O. Stetter
Nature 417, 63-67(2 May 2002)
doi:10.1038/417063a

Lane 1 and 3, Ignicoccus DNA. Lane 2 and 4, DNA of the coculture. Lane 1 and 2, digested with EcoRI. Lane 3 and 4, digested with HindIII.
