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With parthenogenisis in spiders or in general
Is there Parthenogenesis in Spiders
- Thread starter crpy
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The owner of the eggs given to me is on this site. Ill link her and she if she wants to reply.
Ps, Everywhere I read says they are parthenogenic. I have yet to find a site that says otherwise.
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The reason I'm dubious is that many of the other commonly seen phasmids in the US pet trade are parthenogenic but I'm fairly sure these are not.
This thread is going to get moved soon if we don't start talking about Tarantulas soon...lol
This thread is going to get moved soon if we don't start talking about Tarantulas soon...lol
Okay - I'm the egg donor, and here's what I know:
I got my first eggs about March of '07. They'd had a rough ride, and ultimately I only had one female hatch and mature. She lived a solitary existence from egg to death, so there is no chance that she was somehow bred without my knowledge.
She laid eggs from her final molt up until shortly before her death, which I collected and have been keeping in a delicup at slightly elevated humidity. As of today, three of these eggs have hatched. They're just nymphs at the moment, but I fully expect that they will all mature into more females.
The fact that your population kept dying out in your museum exhibit doesn't mean that you didn't have parthenogenic reproduction going on. Parthenogenically produced spectre eggs take about 9 months to hatch, meaning that the female who laid them is dead and gone before any babies are born. I can see how that would be a problem if you're trying to keep up a consistent display in a museum, but I'm pretty sure that if you'd saved the eggs, you would have had another generation in several months. What did you do with the eggs that were laid in the exhibit?
I got my first eggs about March of '07. They'd had a rough ride, and ultimately I only had one female hatch and mature. She lived a solitary existence from egg to death, so there is no chance that she was somehow bred without my knowledge.
She laid eggs from her final molt up until shortly before her death, which I collected and have been keeping in a delicup at slightly elevated humidity. As of today, three of these eggs have hatched. They're just nymphs at the moment, but I fully expect that they will all mature into more females.
The fact that your population kept dying out in your museum exhibit doesn't mean that you didn't have parthenogenic reproduction going on. Parthenogenically produced spectre eggs take about 9 months to hatch, meaning that the female who laid them is dead and gone before any babies are born. I can see how that would be a problem if you're trying to keep up a consistent display in a museum, but I'm pretty sure that if you'd saved the eggs, you would have had another generation in several months. What did you do with the eggs that were laid in the exhibit?
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I believe extatasoma is parthenogenic in the absence of males, with eggs taking longer to hatch. At least that is what I've read. I've only kept males of this species imported under aphis permits many years ago.
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there are two types of parthenogenesis, and regardless of what type of parthenogenesis occurs, you should never end up with both genders..it will be one or the other. the type of parthenogenesis people are usually familiar with you end up with carbon copies of the mother.. i.e. all offspring are female.
However, in automictic parthenogenesis (at least with reptiles), you end up with all males as during the process as the ZW combination ends up being lethal (those eggs do not develop/die) thus leaving only ZZ viable offspring. [in reptiles ZW (female) and ZZ (male)]
I do have a male eastern kingsnake that was almost assuredly produced through automictic parthenogenesis (the only way I can be 100% positive would be to find some lab that could run DNA tests and it would not be cheap). He was the only survivor from a clutch of eggs laid by a female that had not been with a male. Most of the eggs went bad early on (i.e. likely the lethal chromosome combo since the eggs contained nothing when cut open). Of the remaining eggs, 4 did develop babies and they made it nearly through the incubation period, but towards the end 3 died. I did have a bit of a mold attack on the eggs and that could have been the reason the other 3 didn't make it (i.e. stress related). The lone snake that hatched was probed and sexed as a male.
However, in automictic parthenogenesis (at least with reptiles), you end up with all males as during the process as the ZW combination ends up being lethal (those eggs do not develop/die) thus leaving only ZZ viable offspring. [in reptiles ZW (female) and ZZ (male)]
I do have a male eastern kingsnake that was almost assuredly produced through automictic parthenogenesis (the only way I can be 100% positive would be to find some lab that could run DNA tests and it would not be cheap). He was the only survivor from a clutch of eggs laid by a female that had not been with a male. Most of the eggs went bad early on (i.e. likely the lethal chromosome combo since the eggs contained nothing when cut open). Of the remaining eggs, 4 did develop babies and they made it nearly through the incubation period, but towards the end 3 died. I did have a bit of a mold attack on the eggs and that could have been the reason the other 3 didn't make it (i.e. stress related). The lone snake that hatched was probed and sexed as a male.
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Not neccessarily true. Androgeneisis has been observed in some phasmids and is thought to occur in some strains of D. melanogaster.
Androgenesis = Boys giving birth
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Some parthenogenic animals reproduce males in order to start a sexually reproducing founding population.
A bit off topic, but parasitica also reproduce males through haplodiploidy. Males are produced by unfertilized eggs.
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cool, yeah I need to take the "with all" out of there lol, Im a doof, but just sometimes.
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Wrong there buddy...I have some geckos from down south, Florida...all are females and they produce viable egg laying females....Being a partho as a male would be the end of the specie
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lol, I know I know, you type faster than me ,read my post before this one lol.
In snakes the z chromosome is viable.
Ok, heres one for y'all , anybody heard of Carl Bardon? Well he is a good friend of mine and he has an amelenistic A. p. conanti that he raised from a baby from one of his females. It recently had babies and has never been with a male. One of the babies was a female.....so whats that all about , an aberrant situation? He gave me a pic and fangs from a male offspring and Im asking him to email me the pics of the babies and I will post them. They are beautiful snakes.
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Not aberrant at all. There are TWO types of parthenogenesis in reptiles. One produces only females, the other produces only males. It has been documented.
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Yes, but in the same clutch:?