Do Siblings make a difference?

Lately i've seen ads where the seller makes a note about a normal bp is a sibling to a morph ...."normal for sale, sibling to spider"

I'm curious why that would add value or why it is important to make mention of siblings.

I am no expert on the matter so take this for what it's worth but I believe they mention it because the sibling could be Het for the same gene as his morph brother/sister since they are related.

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Originally Posted by Danny Beane

I am no expert on the matter so take this for what it's worth but I believe they mention it because the sibling could be Het for the same gene as his morph brother/sister since they are related.

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No its just a marketing thing. If its a het then its a het if its a poss. then thats what they sell it as. They tell people this when they sell normals that are the brother or sisters of Dom/ Co - Dom. Nothing special geneticaly just marketing.

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Originally Posted by Danny Beane

I am no expert on the matter so take this for what it's worth but I believe they mention it because the sibling could be Het for the same gene as his morph brother/sister since they are related.

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this would make sense if it were dealing with recessive genes. i'm talking about co-doms and doms. either it's normal or it's a morph. no hets.

No, in the case of pastels, spiders and so on it doesn't make any difference as there are no 'het' forms.
If they aren't priced any differently then I'd say the seller is just putting as much information in the ad as possible. If they are priced higher then normal then I'd say they're dishonest and trying to cash in on someones inexperience.

I'd like to believe it's because some breeders selectively breed their mutations to their nicest breeding stock that makes the best match for the co-dominate/dominate morph they are breeding making the normal siblings a little nicer than you're average CH or CB ball python that was from a pairing that wasn't so selective.

But, having been around the block in this business, I get the feeling that people are just "hyping their joint". ;)

-adam

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Originally Posted by Entropy

If they aren't priced any differently then I'd say the seller is just putting as much information in the ad as possible.

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I agree...also kind of let's you know where they are from...i.e. they were part of a captive bred and hatched clutch...not farmed, imported, w/c, etc...

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Originally Posted by Danny Beane

I am no expert on the matter so take this for what it's worth but I believe they mention it because the sibling could be Het for the same gene as his morph brother/sister since they are related.

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A sibling to a Spider is not het for anything as Spider is a Dominant and not a recessive gene.

All it means is that the sire or the dam was a Spider and the other was a normal and the clutch produce contained Spider & Normal.

Now for the HET here is an example breeding an Albino X Het Albino would produce a Homozygous (Visual Albino) and Normal offspring looking considered het for Albino and it that case that is what they would be sold as 100% Het Albino and not Albino Sibling.

Hope this make sense.

Adam's touched on it already, and I don't remember where I heard or read, that some times, pastel siblings, for example - may be brighter than your "normal" normal. Whether there's any truth to that, who knows? Probably more likely a result of what Adam already explained with selective breeding.

Although I have some pretty bright CH normals, I will say that my Sophie, who I purchased from Vaughn is a pastel sibling and she's pretty bright as well. I don't believe Vaughn charged me any extra for her because of her "sibling status" :D

For me the sibling status reassures that the animal is CBB. Of course you still have to take the breeder's word for it...