Ancistrus cf. cirrhosus spawn

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fishguy1978
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Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

I have a 2-3yr old male Ancistrus cf. cirrhosus piebald and a 1-2yr old female standard.
1st spawn 39 total noticed on 04APR egg sack already had been absorbed, 2-3cm
2nd spawn 17APR ish produced 24 albino, 1-1.5cm
Both spawns have been removed to a 10g growout
Feeding Ocean Nutrition 1mm marine carnivore and 1mm spirulina, Sera catfish disks with wood, Spirulina pellets, Bug Bites pleco formula
I am filtering the aquarium with a sponge filter
Added a madrona branch, magnolia leaves, 2 coconut halves and some alder cones
1st batch
1st batch
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fishguy1978
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Re: Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

Counted the fry from the 2nd batch and there are 104
104
104
Proven supplier
Proven supplier
Non paired male
Non paired male
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bekateen
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Re: Ancistrus cf. cirrhosus spawn

Post by bekateen »

Congratulations. Piebald and "normal" parents, and you get albino fry too? Dang your parents are a mix of genes. :))

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fishguy1978
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Re: Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

So, the female isn't a standard, she's a piebald too. Maybe? From the results of this cross, it appears that both of the parents are heterozygotes ('carriers') for the recessive albino trait, and their progeny display perfect Mendelian inheritance, with 75% of them being pigmented, and 25% albino.
Pleco2.jpg
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bekateen
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Re: Ancistrus cf. cirrhosus spawn

Post by bekateen »

fishguy1978 wrote:
Fri May 01, 2020 10:11 pm
So, the female isn't a standard, she's a piebald too. Maybe? From the results of this cross, it appears that both of the parents are heterozygotes ('carriers') for the recessive albino trait, and their progeny display perfect Mendelian inheritance, with 75% of them being pigmented, and 25% albino.
Yep. Sounds right. ;-)
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Re: Ancistrus cf. cirrhosus spawn

Post by Bas Pels »

In other words, they carry the same albino genes.

After all, what is an albino gene? It is a gene that makes one of the proteins which are needed to create melanin not working. It´s the absense of a good melanin gene.

Imagine 3 proteins are needed (I don´t know how much there are, but it is more than 1). Then one would need 3 working melanin genes, and it is possible one albino has the first one incorrect, and another albino the last one. If you pair these, all offspring would be dark.

a1A2A3 would be an albino, just as A1A2a3. But here the offspring has A1A2A3. And a1A2a3, but albinism is recessive.

On the other hand, it could also be one both erroras are on a1, but on another place in the protein. In such a case a1´a1´´ would still be an albino, as both genes produce a not working protein.

So your little experiment did reveal another piece of information
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fishguy1978
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Re: Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

I moved the fry into a 29g with a bunch of madrona branches and alder cones over the weekend. Unfortunately, the move did cause the loss of several fry. I changed out the heater as well as one fry had become trapped in the safety cover.
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fishguy1978
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Re: Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

Here is the current grow out tank for the BN fry and my new Featherfin Green Dragons.
BN_Pleco_Growout.jpg
BN_GreenDragon.jpg
BN_GreenDragon2.jpg
The harbinger of doom to the wicked but the fragrance of life for the hopeless. Napalm

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fishguy1978
Posts: 64
Joined: Fri Apr 24, 2020 6:57 pm
My cats species list: 14 (i:7, k:11)
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Spotted: 18
Location 1: Tacoma
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Interests: Fish. I have 14 aquariums and counting with fish from S.A, C.A, Africa, and Asia.
Contact:

Re: Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

My fry continue to grow. I am having to do 50% water changes daily with poop skimming with how many are in the tank. The male is sitting on another clutch that should be hatched by now. Just waiting for him to release the fry into the 90g as he has taken up residence in one of the madrona log caves.
The harbinger of doom to the wicked but the fragrance of life for the hopeless. Napalm

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fishguy1978
Posts: 64
Joined: Fri Apr 24, 2020 6:57 pm
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Spotted: 18
Location 1: Tacoma
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Interests: Fish. I have 14 aquariums and counting with fish from S.A, C.A, Africa, and Asia.
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Re: Ancistrus cf. cirrhosus spawn

Post by fishguy1978 »

Dumped a new spawn of fry into the grow tank this morning.
The harbinger of doom to the wicked but the fragrance of life for the hopeless. Napalm

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