Molly genetics

eveliens

eveliens

AC Members
Mar 5, 2005
594
0
0
NWA, USA
hubpages.com
Okay, I love this particular pattern on mollies, but can only find it on balloon belly mollies (which I'm not fond of). It is basically a "creamsicle" (orange and white) base with black dalmation spots.
MaleBallonMolly2.jpg


If I picked a BBM male with this pattern and normal females of either creamsicle or dalmation, would the resulting fry be normal mollies with this pattern?

I don't have the room to do this or raise up/cull the fry, but I thought it was an interesting question. Anyone?
 
Well...with genetics I know that you can use a punnet square to figure it out. It all depends on the genetics that create the "color". Sometimes only one pair of genes decide the color...like with Greg Mendels White and Red Pea's or sometimes it takes two differnt genes. I could make a punnet square for you...let me see if I can do it on paint or whatever.
 
Last edited:
I found this interesting. My friend just bought both creamsicle and Dalmatian of female mollies. She didn’t want to have a long term fry issue. Of course, both had fry with in days of getting to her tank. Some of them are going the tank my goldies are out growing. I’m going to take some of them that she doesn’t want and I’m not worried abut the male/female issue so I may see what happens. I thought that is would be a very interesting color combination. If I end up with some I'll make sure to post them here.
 
Matt101905 said:
Ok here are some punnet squares I made. The XX and xx genetics are "pure breed" and the Xx are a mix. There are so many variations that you can make with punnet squares.

View attachment 83548
View attachment 83549

These was the genetics I was talking about if that two genes determined the color of the animal. NOTE that each genetic numiclature is a different color variation.

View attachment 83550
Click to expand...

Punnet square for two genes can be much more complex - yours assumes homegeneity doesn't have the XxRr, xxRr, XxRR, XXRr options...

When I have a moment I'll draw one up for hetergenous parents. It has

XR Xr xR xr

along both axes so is a 4 x 4 square rather than a 2x2.
 
Medelian genetics explain just one of several different described genetic controls. The Punnet square above shows inhertance classified as simply inherited qualitative genetics. These are the easy ones. Unfortunately in real life there are very few traits that follow these guidelines.

Genetics interactions are extremely complex. What adds even more complexity to the issue is that genetics interact with the environment. Individuals with identical genes often look very different if they live in different environments.

There really is no way to predict what an offspring will look like without a thorough understanding of genetic controls. This type of information is what some people study their entire lives.

Here's some terms that you may or may not be familar with that are used to describe genetic controls if anyone wants to do a search: dominance, recessive, codominance, overdominance, underdominance, incomplete dominance, epistasis, quantatative trait loci (QTL), transposons, epigenome, recombination, linkage, and G X E = P (genotype by environment = phenotype).
 
KarlTh said:
Punnet square for two genes can be much more complex - yours assumes homegeneity doesn't have the XxRr, xxRr, XxRR, XXRr options...

When I have a moment I'll draw one up for hetergenous parents. It has

XR Xr xR xr

along both axes so is a 4 x 4 square rather than a 2x2.
Click to expand...

Yes I know, I didn't want to spend a lot of time making those, I did explain that there are alot of different variations you can make the punnet squares. I was just doing a simple sample.
 
You must log in or register to reply here.
AquariaCentral.com
Top Bottom