As these chemicals play a crucial role in sexual attraction and mate recognition in Collembola [16], the discrepancies found among the cuticular profiles of all the infraspecific entities of the D. deficiens complex strongly suggest a status of an ongoing process of reproductive isolation involving those compounds.
In this study, we have isolated a new fil allele, fil-9, and dissected the process of reproductive organ development in the mutant.
The GO enrichment patterns showed a disproportionate representation of unigenes involved in the biological process of reproductive structure, embryo, seed and fruit development in the two genotypes (Table 5, Additional file 9).
Genetically-based changes to these aspects of mating could complete the process of reproductive isolation and speciation.
In addition, we used CO2-narcosis, which induces oviposition without mating, to isolate the process of reproductive maturation.
A better understanding of the genes and environmental factors that impact ovarian reserve may provide greater insight on the process of reproductive aging and the genetic requirements of human fertility.
However, it is the pressure or social expectations (expectations that are necessarily informed by an inaccurate view of the role of genes) placed on the individual clone that challenge the clone's human dignity, not the process of reproductive cloning.
A high FST value between the two populations of Ditylum brightwellii already indicated that that the process of reproductive isolation was underway, and that these two populations could represent separate species [ 30].
If Haldane's Rule is indeed the cause of the clinal mismatch we observed, then our results suggest that the coastal and interior lineages of Western Scrub-Jay have begun the process of reproductive isolation.
