TABLE 3

Observed and expected frequencies of genotypes if all possible crosses among hybrids and backcrosses with parental species are equally likely

FrequenciesChi-square (d.f.)
GenotypeaExpectedObservedP-value
Males (n = 5)
aI♂1.25015.0 (3)1.8 × 10−3
iI♂1.255
aA♂1.250
iA♂1.250
Females (n = 8)
a♀414.5 (1)3.4 × 10−2
i♀47
  • a Lowercase letters refer to the mitochondrial haplotype of A. palliata (a) and A. pigra (i); uppercase letters denote the genotype of males at the Y chromosome Sry gene for alleles of A. palliata (A) and A. pigra (I).