#parthenogenesis — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #parthenogenesis, aggregated by home.social.
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🧬🐟 The #Amazon #molly, an all-female #fish from #Texas and #Mexico rivers, has cloned itself for over 100,000 years – long past the predicted extinction deadline.
A 2026 #Nature #study by researchers at University of #Missouri and LMU #Munich shows the fish uses “gene conversion,” a #DNA repair trick, to erase bad #mutations and spread good ones without #sex.
👉 https://www.sciencealert.com/scientists-finally-know-how-an-all-female-fish-keeps-cloning-itself
#genetics #evolution #cloning #parthenogenesis #genome #geneconversion #reproduction #biology #science
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🧬🐟 The #Amazon #molly, an all-female #fish from #Texas and #Mexico rivers, has cloned itself for over 100,000 years – long past the predicted extinction deadline.
A 2026 #Nature #study by researchers at University of #Missouri and LMU #Munich shows the fish uses “gene conversion,” a #DNA repair trick, to erase bad #mutations and spread good ones without #sex.
👉 https://www.sciencealert.com/scientists-finally-know-how-an-all-female-fish-keeps-cloning-itself
#genetics #evolution #cloning #parthenogenesis #genome #geneconversion #reproduction #biology #science
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(the answer is: isopods and _Wolbachia_)
- Charlat, S., Hurst, G. D. D., & Merçot, H. (2003). Evolutionary consequences of Wolbachia infections. Trends in Genetics, 19(4), 217–223. https://doi.org/10.1016/s0168-9525(03)00024-6 :ClosedAccess: https://sci-hub.box/10.1016/S0168-9525(03)00024-6 :scihub:
- Leclercq, S., Thézé, J., Chebbi, M. A., Giraud, I., Moumen, B., Ernenwein, L., Grève, P., Gilbert, C., & Cordaux, R. (2016). Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont genome. PNAS, 113(52), 15036–15041. https://doi.org/10.1073/pnas.1608979113 :OpenAccess:
#isopods #Isopoda #Wolbachia #parasitism #endosymbiosis #parthenogenesis
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🥳🙌 🐜 👏 🎉 Successful MSc defence by Nora Kerschbaumer @uniinnsbruck on “Genetic colony structure in Eastern Alpine Lasius fuliginosus ants: putative clonal worker production”
Congrats to you, MSc Nora, & thanks to Julia Seeber & Barbara Thaler-Knoflach!
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🥳🙌 🐜 👏 🎉 Successful MSc defence by Nora Kerschbaumer @uniinnsbruck on “Genetic colony structure in Eastern Alpine Lasius fuliginosus ants: putative clonal worker production”
Congrats to you, MSc Nora, & thanks to Julia Seeber & Barbara Thaler-Knoflach!
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Hands up if you believe in virgin birth. Nobody? Well... an iguana in a UK zoo has given birth to eight tiny hatchlings, despite never having met a male iguana.
"It's a miracle!"
Nope, it's called 'parthenogenesis' where an embryo develops directly from an egg without being fertilised. The babies are all perfect clones of their mum. Many species have this ability, mainly lizards.
There's a delightful comment from the zoo's owner: "They all speak at exactly the same time."
Bless their tiny green souls.
Next week: "Was Jesus an Iguana?"
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Hands up if you believe in virgin birth. Nobody? Well... an iguana in a UK zoo has given birth to eight tiny hatchlings, despite never having met a male iguana.
"It's a miracle!"
Nope, it's called 'parthenogenesis' where an embryo develops directly from an egg without being fertilised. The babies are all perfect clones of their mum. Many species have this ability, mainly lizards.
There's a delightful comment from the zoo's owner: "They all speak at exactly the same time."
Bless their tiny green souls.
Next week: "Was Jesus an Iguana?"
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#DidYouKnow: #Parthenogenesis (#Virgin #Birth) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing).
Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species.
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#DidYouKnow: #Parthenogenesis (#Virgin #Birth) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing).
Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species.
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2/2
In most organisms eggs are produced by splitting the number of chromosomes (carrying the genetic material of the DNA) that occur in most cells in an animal’s body, to half the normal number. Only after fertilization by sperm (also with the split half number of chromosomes) is the full complement restored. In #parthenogenesis, no reduction splitting occurs, all eggs are full-chromosome clones of the mother, and all will also be female. -
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In most organisms eggs are produced by splitting the number of chromosomes (carrying the genetic material of the DNA) that occur in most cells in an animal’s body, to half the normal number. Only after fertilization by sperm (also with the split half number of chromosomes) is the full complement restored. In #parthenogenesis, no reduction splitting occurs, all eggs are full-chromosome clones of the mother, and all will also be female. -
Sex as a formality: Male stick #insects have lost their reproductive function
https://phys.org/news/2025-02-sex-formality-male-insects-lost.htmlLack of successful sexual reproduction suggests the irreversible #parthenogenesis in a stick insect https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecy.4522
"While most #animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these, rare males occasionally appear. Whether they retain reproductive functions is a key question in the #evolution of reproductive strategies."
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Sex as a formality: Male stick #insects have lost their reproductive function
https://phys.org/news/2025-02-sex-formality-male-insects-lost.htmlLack of successful sexual reproduction suggests the irreversible #parthenogenesis in a stick insect https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecy.4522
"While most #animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these, rare males occasionally appear. Whether they retain reproductive functions is a key question in the #evolution of reproductive strategies."
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Recent updates in #parthenogenesis: in a Japanese species of stick insect that relies on parthenogenesis for reproduction, the rare males mated with females but pointlessly. The males are sterile and none of their genes are passed along. "Surprisingly, the rare males of this stick insect have completely lost their reproductive function," remarked Dr. Kaneko.
https://phys.org/news/2025-02-sex-formality-male-insects-lost.html -
😲 Jungferngeburt: In Louisiana ist es ein Hai, in meinem #KaroRutkowsky-Krimi 'Wunder gibt es immer wieder' geschieht es einer Essener Schlagersängerin.
🦈 "Aquarium surprised by ‘virgin birth’ of swell shark in all-female tank" https://www.theguardian.com/environment/2025/jan/28/aquarium-surprised-by-virgin-birth-of-swell-shark-in-all-female-tank
#Hai #AutorinGesineSchulz #Jungferngeburt #Parthenogenese #VirginBirth #parthenogenesis #shark #Fortpflanzung #Krimi @MSchwestern #LiteraturgebietRuhr
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Useless Facts, Badly Drawn #106: Komodo dragons.
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#nature #komododragons #reptiles #parthenogenesis #virginbirth #animals #facts #animalfacts #comic #webcomic #didyouknow #funfacts #strangebuttrue #chesterzoolondon #uselessfacts #uselessfactsbadlydrawn -
Useless Facts, Badly Drawn #106: Komodo dragons.
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#nature #komododragons #reptiles #parthenogenesis #virginbirth #animals #facts #animalfacts #comic #webcomic #didyouknow #funfacts #strangebuttrue #chesterzoolondon #uselessfacts #uselessfactsbadlydrawn -
Oleander aphids (𝘈𝘱𝘩𝘪𝘴 𝘯𝘦𝘳𝘪𝘪) on swamp milkweed (𝘈𝘴𝘤𝘭𝘦𝘱𝘪𝘢𝘴 𝘪𝘯𝘤𝘢𝘳𝘯𝘢𝘵𝘢), from July 2022.
Interestingly, these little critters are all female; no males are found in the wild. They reproduce by parthenogenesis.
#InsectThursday #aphids #Hemiptera #TrueBugs #parthenogenesis #milkweed #insects
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#DidYouKnow: #Parthenogenesis (#Virgin #Birth) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing).
Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species.
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#DidYouKnow: #Parthenogenesis (#Virgin #Birth) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing).
Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species.
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'Amazon' #algae shed light on what happens to populations when #females switch to #asexual #reproduction.
#pheromones #evolution #parthenogenesis
https://phys.org/news/2024-08-amazon-algae-populations-females-asexual.html
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'Amazon' #algae shed light on what happens to populations when #females switch to #asexual #reproduction.
#pheromones #evolution #parthenogenesis
https://phys.org/news/2024-08-amazon-algae-populations-females-asexual.html
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Who needs males? Female #sharks make babies alone in Italy.
https://phys.org/news/2024-07-males-female-sharks-babies-italy.html
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Who needs males? Female #sharks make babies alone in Italy.
https://phys.org/news/2024-07-males-female-sharks-babies-italy.html
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How does BBM-mediated #parthenogenesis work? Understanding this process will help #PlantScience improve haploid #breeding efficiency. A new study by Liu et al. gets us one step closer. https://doi.org/10.1111/jipb.13678
@wileyplantsci
#embryogenesis #apomixis #SexualReproduction #botany -
🦎 Did you know some lizards can reproduce without males? It's called parthenogenesis! 🤯 Nature's way of saying "who needs men?" 😂 These all-female species are like real-life wonder women! 💪🦸♀️
https://www.nationalgeographic.com/animals/article/parthenogenesis-how-animals-have-virgin-births
#Parthenogenesis #NatureIsCrazy #GirlPower #ScienceFacts #Herpetology
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🦎 Did you know some lizards can reproduce without males? It's called parthenogenesis! 🤯 Nature's way of saying "who needs men?" 😂 These all-female species are like real-life wonder women! 💪🦸♀️
https://www.nationalgeographic.com/animals/article/parthenogenesis-how-animals-have-virgin-births
#Parthenogenesis #NatureIsCrazy #GirlPower #ScienceFacts #Herpetology
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There has been a virgin birth in North Carolina.
https://www.scientificamerican.com/article/how-did-an-aquarium-stingray-get-pregnant-without-a-mate/ #parthenogenesis -
Higgamus, hoggamus,
Mary of Nazareth
Said, "As the virginal
Mother of God,
I'm as proficient at
Parthenogenesis
As a stingray, amoeba,
Or gasteropod."https://www.scientificamerican.com/article/how-did-an-aquarium-stingray-get-pregnant-without-a-mate/
(apologies to my Uncle Ted who rhymed up an original #doubledactyl #parthenogenesis #poem decades before I added stingrays to the mix today [edit: ted was reciting Hecht/Hollander to young me, see my reply comment]
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Higgamus, hoggamus,
Mary of Nazareth
Said, "As the virginal
Mother of God,
I'm as proficient at
Parthenogenesis
As a stingray, amoeba,
Or gasteropod."https://www.scientificamerican.com/article/how-did-an-aquarium-stingray-get-pregnant-without-a-mate/
(apologies to my Uncle Ted who rhymed up an original #doubledactyl #parthenogenesis #poem decades before I added stingrays to the mix today [edit: ted was reciting Hecht/Hollander to young me, see my reply comment]
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No Daddy #Shark in sight: #Zoo greets a cute shark pup after apparent #parthenogenesis
The epaulette shark pup hatched this summer at Brookfield Zoo, just west of Chicago. Its mother has been at the zoo since 2019; in that time, she's never shared a tank with a male.
https://www.npr.org/2023/11/07/1211178209/shark-pup-parthenogenes -
No Daddy #Shark in sight: #Zoo greets a cute shark pup after apparent #parthenogenesis
The epaulette shark pup hatched this summer at Brookfield Zoo, just west of Chicago. Its mother has been at the zoo since 2019; in that time, she's never shared a tank with a male.
https://www.npr.org/2023/11/07/1211178209/shark-pup-parthenogenes -
#DidYouKnow: #Parthenogenesis (#Virgin #Birth) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing).
Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species.
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#DidYouKnow: #Parthenogenesis (#Virgin #Birth) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing).
Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species.
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"While #VirginBirths occur naturally in many #animal species and have been induced in others — including mice — by manipulating cells, this #research marked the first time #scientists isolated specific #genes to make #parthenogenesis a lasting and inheritable trait in an organism not otherwise capable of this type of reproduction. Though the feat may seem like the stuff of #scienceFiction, take note: It is not the harbinger of virgin births in humans."
https://www.cnn.com/2023/08/03/world/virgin-birth-fruit-fly-first-scn/index.html
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"While #VirginBirths occur naturally in many #animal species and have been induced in others — including mice — by manipulating cells, this #research marked the first time #scientists isolated specific #genes to make #parthenogenesis a lasting and inheritable trait in an organism not otherwise capable of this type of reproduction. Though the feat may seem like the stuff of #scienceFiction, take note: It is not the harbinger of virgin births in humans."
https://www.cnn.com/2023/08/03/world/virgin-birth-fruit-fly-first-scn/index.html
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"The genetically induced parthenogenetic #Drosophila melanogaster eggs exhibit de novo centrosome formation, fusion of the meiotic products, and the onset of development to generate predominantly triploid offspring. Thus, we demonstrate a genetic basis for sporadic facultative #parthenogenesis in an animal."
"A genetic basis for facultative parthenogenesis in Drosophila": Current Biology
https://www.cell.com/current-biology/fulltext/S0960-9822(23)00913-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982223009132%3Fshowall%3Dtrue -
"The genetically induced parthenogenetic #Drosophila melanogaster eggs exhibit de novo centrosome formation, fusion of the meiotic products, and the onset of development to generate predominantly triploid offspring. Thus, we demonstrate a genetic basis for sporadic facultative #parthenogenesis in an animal."
"A genetic basis for facultative parthenogenesis in Drosophila": Current Biology
https://www.cell.com/current-biology/fulltext/S0960-9822(23)00913-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982223009132%3Fshowall%3Dtrue -
`The genetically induced parthenogenetic #Drosophila melanogaster eggs exhibit de novo #centrosome formation, fusion of the meiotic products, and the onset of development to generate predominantly triploid offspring. Thus, we demonstrate a genetic basis for sporadic facultative #parthenogenesis in an animal.`
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Scientists Discover a Virgin Birth in a #Crocodile
The act of reptile reproduction suggests that dinosaurs and pterosaurs may have been capable of #parthenogenesis, too, much like the creatures in “Jurassic Park.”
https://archive.ph/jzpVC -
Hold on, hold on - didn't we cover this in the respected scientific treatise, 'Jurassic Park?'
