MASSIVE TRANSITIONS. "These observations prompted the hypothesis that emergence of new major groups of organisms often, perhaps typically, involves massive gene gain via HGT (in microbes) or extensive, in some cases, whole genome duplication (in eukaryotes) followed by gradual genome streamlining via gene loss in each of the lineages." (HGT = horizontal gene transfer). https://lnkd.in/dSemZpD View in LinkedIn