Table 1.

Acceptance of fertile polygyne queens of S. invicta (genotype Gp-9^Bb) when introduced into foreign test colonies headed by a fertile monogyne queen or by a fertile polygyne queen kept in monogynous condition for five months

Genotypes of workers in test colony	Type of queen heading test colony
	Monogyne queen (BB)	Polygyne queen (Bb) made monogynous
BB	0 (0)	—
	n = 85, N = 17
Bb + another	—	0.92 (1.0)
		n = 150, N = 30

The proportions of total introduced queens that were accepted are shown, followed in parentheses by the proportions of test colonies in which any queens were accepted. Gp-9 genotypes of the queens heading each test colony and the workers constituting it are indicated. The numbers of queens introduced are indicated by n and the numbers of colonies into which they were introduced by N (five queens were introduced into each test colony). The composition of worker genotypes in each test colony depends on the genotype of the queen and of the single haploid male with which she mated (50). All monogyne (BB) queens mated with B males, so only BB workers were produced. The polygyne (Bb) queens mated with either B males or b males, yielding colonies containing a mixture of heterozygous workers and workers with one of the two homozygous genotypes.