Fig 1.
Lineages of the Hexagrammos hybrids referred to in the present study.
If hybrids form between BC-Hoc and Hag, then hybridogenesis would be perpetuated by the inheritance of genetic factors that induce hybridogenesis; in the absence of such an inheritance pattern, recombinant reproduction would occur. Hoc and Hag represent H. octogrammus and H.agrammus, respectively. Blue and orange indicate the genomes of H. octogrammus and H. agrammus, respectively.
Table 1.
Counts and proportional morphometric characters used in this study.
Fig 2.
Scatterplot of the principal component analysis by 14 morphological characters of the 5 lineages used in this study.
Hoc, BC-Hoc* and Hag indicate H. octogrammus, maternal backcross and H. agrammus, respectively; BC-Hoc*×Hag and Hoc*/Hag indicate hybrid lineages.
Table 2.
Genotypes of offspring from hemiclonal BC-Hoc × Hag by artificial fertilization experiments.
Table 3.
Genotypes of offspring from recominant BC-Hoc × Hag by artificial fertilization experiments.
Fig 3.
Inheritance pattern of recombination in three hemiclonal genes during gametogenesis.
During gametogenesis of BC- Hoc*, chromosomes containing multiple hemiclonal genes (solid red circles) inherited from Hoc*/Hag recombine with homologous chromosomes inherited from Hoc. If all randomly rearranged hemiclonal genes are inherited, then new hemiclonal lineages are regenerated. Homologous chromosomes are comprised of either two solid or two stippled chromosomes. Hoc and Hag represent H. octogrammus and H.agrammus, respectively. Blue and orange indicate H. octogrammus and H. agrammus, respectively.