Although the bacteria shared common features (most live inside animals and many cause disease), the pattern of species carrying and lacking the
gene suggested that the
gene had been shuffled horizontally in the
family tree, between distantly related species, not passed down from an
ancient ancestor.
In this paper, we describe an
ancient lepidopteran LGT of a glycosyl hydrolase
family 31
gene (GH31) from an Enterococcus bacteria.