I found a paper where dumpy had been observed through the dauer stage!
I had been looking for someone that had observed dumpy (generally the alae in dumpy has not fully formed as there is something wrong with the ZP matrix or the final stage of the extra cellular matrix tyrosine cross links which scrunches the ZP matrix together narrowing the nematode and forming the ridge we call the alae) and I had been interested in experiments with these where the exiting of the dauer stage had been observed.
Well I found it in a small paragraph in a 2005 paper on elt-1. The dumpy refused to exit the dauer stage despite stimulus to do so. This may have meant little to the researcher but to me it continues to re-confirm that the alae is a neural receptor and that the dauer stage awaits a chemical signal to exit this stage. I was also curious about the receptors around male and female reproductive organs. These also contain ZP domain receptors and this paper showed that the elt-1 was involved in its development. The observation was that the area around the reproductive organs was affected. As part of realizing that the alae was a neural receptor I also realised that this part of the alae with its own ZP was likely to be for the identification of the reproductive organs of a mate, remember they can’t see and don’t have hands, and receptors around the head just won’t do it, so they need receptors around the reproductive organs.
And I couldn’t get access to genes from the blowfly genome project by the wool corporation of Aust even with confidentiality agreements. They are keeping that one close to their chest.
Robert