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Post by kctomato on Aug 18, 2014 7:42:49 GMT -5
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Post by paulf on Aug 18, 2014 12:58:08 GMT -5
What I get from this study is that there really is not a marked or significant difference but there may be a problem somewhere down the road but right now it is insignificant. Until something comes up sometime it is the best we have. Reading this stuff gives me a headache.
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Post by spacecase0 on Aug 18, 2014 14:43:27 GMT -5
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Post by kctomato on Aug 20, 2014 18:46:00 GMT -5
Recent talks on conservation have brought to light the (almost) failure of the govt cryopreservation efforts. There are very low survival numbers in some crops (20-30%) and while that may seem "better than nothing" among the survivors were often problems.
The call from the talks are for better research into methods of long term storage and recovery. The projects were started originally without much backing research. I do think they were well intentioned.
I think what this article shows is that even in recoverable material the genetics may not be the same coming out as going in. Preservation being a relative term.
Genomes are in a flux. Even with the best of intentions and strict repeated selection things are going to change. Micro satellite arrays, SNP's and the like are going to react to the environment or even the selection process itself. Such that even the best intentioned "heirloom" may not be the same as it was 50 or 100 years ago. While some seem to get upset about that "losing diversity!" I don't see it that way. It's new diversity being created, adapting and imprinted. There seems to be lots going on in the coding of DNA we don't understand.
Trying to always "save things" by our own hands may do more harm than good if we place too much faith in those technologies.
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Post by spacecase0 on Aug 20, 2014 19:58:57 GMT -5
yea, growing things continually seems the best way to keep things going, and it is still changing each year.
no matter how hard you work, you can't stop the progression of time.
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Deleted
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Joined: January 1970
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Post by Deleted on Aug 22, 2014 0:23:30 GMT -5
Problem loading page/server not found.
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Post by spacecase0 on Aug 22, 2014 19:47:12 GMT -5
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