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| Long hailed as a 'living fossil,' Coelacanth fish exposed as Evolving Under The Radar (Page 1/2) |
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rinselberg
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FEB 10, 03:23 PM
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Newly compiled genetic data reveals that the celebrated Coelacanth species, loosely referred to as a "living dinosaur," has actually been evolving in the finest neo-Darwinian tradition and even during the most recent 10 million years. Some 62 of its most recently acquired genes are the product of Horizontal gene transfers.
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"Bizarre Coelacanth Hasn't Spent 65 Million Years Unchanged After All, Its Genome Reveals"
Tessa Koumoundouros for Science Alert; February 10, 2021.
https://www.sciencealert.co...l-its-genome-reveals[This message has been edited by rinselberg (edited 02-10-2021).]
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rinselberg
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FEB 10, 03:25 PM
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. [This message has been edited by rinselberg (edited 02-10-2021).]
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williegoat
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FEB 10, 03:30 PM
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I opened this thread thinking it would be about Nancy Pelosi.
| quote | Originally posted by rinselberg:
acquired genes are the product of Horizontal gene transfers.
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Horizontal.....isn't that the way genes are usually transferred?  [This message has been edited by williegoat (edited 02-10-2021).]
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randye
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FEB 10, 03:47 PM
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| quote | Originally posted by williegoat:
I opened this thread thinking it would be about Nancy Pelosi.
Horizontal.....isn't that the way genes are usually transferred?
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Yeah, something smells fishy about that...
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randye
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FEB 10, 03:51 PM
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Coelacan
Because I prefer obscure fish to be more positive about things.[This message has been edited by randye (edited 02-10-2021).]
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maryjane
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FEB 10, 03:56 PM
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Most of us transfer jeans vertically; except fat people that have to lay down on the bed to do it.
But, exactly how many years has this fish's genes gone unchanged?
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randye
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FEB 10, 04:08 PM
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The important question is do you eat your Coelacanth breaded and deep fried or just un-breaded with a little butter, lemon and dill garnish.... [This message has been edited by randye (edited 02-10-2021).]
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maryjane
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FEB 10, 04:24 PM
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I eat mine with some fava beans and a nice chianti.
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williegoat
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FEB 10, 04:25 PM
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| quote | Originally posted by randye:
The important question is do you eat your Coelacanth breaded and deep fried or just un-breaded with a little butter, lemon and dill garnish....
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Neighbors of yours?
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rinselberg
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FEB 10, 04:37 PM
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| quote | Originally posted by maryjane:
Most of us transfer jeans vertically; except fat people that have to lay down on the bed to do it.
But, exactly how many years has this fish's genes gone unchanged? |
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It has been commonly said that the Coelacanth (I think there are more than one species) is a lobe-finned fish that first appears in the fossil record 360 million years ago and has persisted to this day without evolving. First known only from fossil evidence and previously thought to have long been extinct, the first live specimen was discovered in 1938.
Of course, they do not have any DNA samples from the oldest fossils, or any Coelacanth fossils (that I'm aware of.) These findings, that it has acquired new genes in its DNA during the most recent 10 million years, are inferred, and I cannot explain how they come to that conclusion. I guess it's partly apparent from the article. I'd have to review it more carefully.[This message has been edited by rinselberg (edited 02-10-2021).]
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