Association of colony social organization in S. invicta with amino acid residues at three Gp-9 codons jointly diagnostic for B-like and b-like alleles.

b-like residues and polygyne social organization are shown in bold for emphasis.aDetermined by microsatellite analysisbB-like residues are Ser42, Met95, and Val139, whereas b-like residues are Gly42, Ile95, and Ile139cTwo different sequences were recovered from workers in these colonies; in each case, one represents a typical b-like allele (see Figure 2)