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reply to Paul Hollanders post below regarding possible sex linked genetics in brooski morph

bluerosy May 25, 2004 01:00 PM

The post got buried in one day below so I brought it back to the top.

I'm still trying to clarify some things in my own mind. The peanut butter males are almost white at hatching and darken to a peanut butter shade over time. How long does this process take?

It’s a process that keeps changing over a period of years. My 2 yr old PB look different from my 4 yr olds. The neonates start changing after the first shed but they still look amelanistic . The second shed looks like a superimposed picture of a amel over a hypo. You can hold up a second shed PB to the light and not make up your mind if it’s a amel or a hypo. I have shown this to breeders at the Daytona Expo who keep changing their minds …. is a hypo or is it an amel???

How old were the three snakes in the top picture in the original post?

they are Second shed neonates.

here is a earlier pic of the same PB male and a het female in backround:

The males like the one marked "male het PB" in the original post come out of the egg jet black and lighten a little. From context, he seems to be about 6-7 months old when the picture was taken. Is this age correct, and would he stay about that color for the rest of his life?

Age is correct. I have never kept any of the male hets long enough to find out if they lighten.

The female marked "female het PB" in the original post also seems to be about 6-7 months old. Is the coloring typical of the females het for pb? What color was she when she hatched, did she darken or lighten with age, and will she stay about the same color?

Yes this color is typical for het females that I have hatched.



I'm going to use the letter A to refer to the single male marked "het male pb" in the original post. And I'm going to use the letter B to refer to the single female marked "het female pb" in the original post.

>I bred the PB male to a Beard line hypo and all the neonates came out normal

How many males, and how many females? How many males looked like A? How many males looked like B? How many females looked like A, and how many females looked like B? Were the babies retained long enough so that you could tell the difference?

I don’t recall (yikes!). I sold most of the Dh’s to a European breeder at the Daytona Expo..

>I also bred a PB to a normal florida king and all the neonates came out normal.

How many males, and how many females? How many males looked like A? How many males looked like B? How many females looked like A, and how many females looked like B? Were the babies retained long enough so that you could tell the difference?

This was s small clutch of two. Only one survived (it was a male)and it was sold.

>All the breeding I have dome where from a PB male to a het female. I had a varience of PB's within each clutch and definet het males and females.

Did the female adults all look like A, all look like B, or did some look like A and some like B?

All females were lighter looked like B and all the males were darker=A.

Lump the babies from all the PB male x like A females together and answer the questions below. And lump the babies from all the PB male x like B females together and answer the questions below for them.

Sorry but I did not keep any records to answer the rest of your questions. I sold most of the PB's to two European breeders and this year I expect at least 6 clutches and I will post the results here this august.

here are some pics I took today of some het females that just laid and one of my male PB's.

female het PB:

darker het female PB:

het female with male PB:

PB and two het females:

The dark areas you see on the PB are quite different from a normal hypo line. The black areas seem to retain that amelanistic color, something my camera does not seem to pick up well.

Here is a third female het PB that is in the blue:

all het females just one is darker and in the blue:

This is a COMPARISON pic. The brooks being held up in my hand is not a PB but a het hypo. The rest in the backround are het female PB's:

ANOTHER COMPARISON pic. This time the snake is a het axanthic female brooksi. The ones in the backround are het female PB's:

last shot of male PB with female hets:

Replies (3)

Paul Hollander May 25, 2004 06:35 PM

After looking at your pictures, I'd say that those snakes do not fit into either the amel or hypo category. They are a new category -- peanut butters.

I was really hoping for information about babies from a PB male to an unrelated female. Is there any chance of repeating such a cross this year? If not, it should be done sometime. It's the single most useful cross for disproving sexlinkage.

Unfortunately, there isn't enough info to really get a handle on PB, yet. This year's breeding will help, if you write down the information in a notebook, computer file, or whatever. It would also help if you write down the pedigree for each of your present snakes with as much information about what each snake in their pedigrees looked like.

Please use the pictures of the two snakes I called A and B as a standard to compare your future babies to. Keep documenting the changes in appearance as your snakes age. And keep in touch.

Paul Hollander

bluerosy May 26, 2004 12:20 PM

So much for all your help and advice. However I don't have a normal brooksi this year to pair up with a male PB but I will cross him into my Hypomelanistic (Beard line)for her second clutch this season. AND this time I will keep the babies of which I already know will come out normal looking but DH's. Of course all records of the hatchlings will be recorded as well. I wish I would have done this in previous yrs but didn't think it would be that useful. I also wished I kept some of those double het (hypo X peanut butters) I bred a couple season back to see what might come out of those. Oh well this year will be different.

I will post some of the results with pictures after the first hatch this July. I plan on double and possibly triple clutching some females this year so I will have a lot of data on hand.

Paul Hollander May 26, 2004 01:16 PM

>I don't have a normal brooksi this year to pair up with a male PB but I will cross him into my Hypomelanistic (Beard line)for her second clutch this season.

We'll have to allow for possible sperm retention from the female's spring mating. Otherwise, she should do fine.

Paul Hollander

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