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From: RonO <rokimoto557@gmail.com>
Newsgroups: talk.origins
Subject: Re: New paper: Neanderthals were not subspecies of H. sapiens, but
 different species
Date: Thu, 26 Dec 2024 17:22:24 -0600
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On 12/14/2024 12:21 PM, Ernest Major wrote:
> On 14/12/2024 16:32, erik simpson wrote:
>> On 12/14/24 6:58 AM, Chris Thompson wrote:
>>> https://scitechdaily.com/rewriting-evolution-study-shows- 
>>> neanderthals- and-humans-were-not-the-same-species/
>>>
>> Interesting paper.  It's turning out that species is a slippery 
>> concept.   If two species never interbreed, they're clearly separate.  
>> If the occasionally interbreed, they may still be separate, but how 
>> occasionally?  I'd agree that Neanderthals are separate.  It's 
>> interesting that interbreedability can go on for a surprisingly long 
>> time, hundreds of thousands of years.  Some plants are still separate 
>> species after tens of millions of years of interbreeding.
>>
> 
> Some plants are still interfertile after tens of millions of years of 
> presumed isolation. For example North American and European species of 
> lime (basswood), oak, plane, poplar, and horse chestnut (buckeye). Is 
> that what you meant; if not I'm curious what taxa you have evidence for 
> tens of millions of interbreeding; I would have thought that evidence 
> for such would be hard to come by.
> 
Brassicaceae should count.  Many hybrids are viable and have produced 
new crop plants.  Think of broccoflower (broccoli and cauliflower).

They wanted to put restrictions on making them roundup resistant because 
so many weed plants interbreed with them that the resistance was likely 
going to get into the weeds.

Ron Okimoto