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Table 1 Overview of gene categories

From: Duplication is more common among laterally transferred genes than among indigenous genes

Category G Cr O1 O2 Suggested content of imports
A + - - - Recent imports or loss of imports from B
B + + - - Less recent imports
C + - + + Loss of genes in Cr, or pervasive imports
D + + + + Only highly pervasive imports expected
  1. G, genome under consideration; Cr, paired close relative; O1, first outgroup organism; O2, second outgroup organism. +, Present; -, absent.