Old post from 27/05/08
The xanthic carrier jags spawned today. Just got the confirmation text. Ian tells me that it can take over two weeks before the fry become free swimming, so I won't get too excited just yet. The parents took three days just to clean the spawning site to their satisfaction!
I have decided that the xanthic gene should be labelled 'Y' (for yellow colouration). With this in mind, the Punnet square that predicts how the offspring will turn out should look like this:
Y y
--------------
Y YY Yy
y Yy yy
So, 25% normal, 50% xanthic carriers (which are apparently phenotypically distinct from normals), and 25% xanthic.
This is what Ian seems to have got from the last spawn with the same female, but only time will tell whether or not the fry he believes to be xanthic really are. The same goes for whether or not the carriers will be distinct from the normals. I must remember to ask.
For now I have to start worrying about the best way to feed the fry when they start swimming.
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