VERTICAL SIGNAL STRENGTH. It is thought that “HGT is frequent at all biologically relevant levels and time-scales. Given the number of individual organisms inhabiting our planet and the time elapsed since cellular life became established on Earth, a high frequency of HGT would certainly lead to erasing most, if not all, signs of vertical inheritance…But, by enlarge, HGT has not completely blurred the phylogenetic signal resulting from vertical transmission of genetic material.”
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