Is low potency a recessive trait?

[blackone]

I'm not sure of your aim here bubbl3r? Are you just wanting to keep a conversation going or are you trolling? You latest post definitely sounds a little speculative at best...
Individuals definitely change the expression of their genome based on environment (Plants grow thicker stems in a windy environment - people grow bigger muscles when training) but the genome itself is only changed for the species with selection (And mutations - but those are random, selection is needed for a "direction" )

 

[Grat3fulh3ad]

Sam is 100% correct.

 

[bubbl3r]

Do you understand that the genes in a plant do not change?-SamS

Well, once again thats not strictly true......in normal circumstance they don't change., but there are circumstances when they do, and during the lifetime of the plant also.

I think Sam Skunkman, you should be careful before you start assuming, I don't know about genetics in cannabis. Genetics is a massive field, and starts with the theory, and leads to the microbiological cell level, and goes beyond to chemical composition.

The more its studied, the more they realise they just don't know, or at least need to find out....lol

The truth is there's a lot of theories, as with most undiscovered truths, and you will always have people with limted experience hypothesizing....nothing wrong with that at all!

Now if I said to you, the day will come when they will be able to switch on a gene, and change the smell of plants or maybe the colour....would you believe me?.....probably not...lol...someone told me that carrots used to be purple till the dutch got hold of them.

If I said to you, that they will be blending THC and Cannabinoids in laboratories, just like they do with wines in a vineyard.....would you believe me?....probably not.

The secrets of the DNA code are not that far away from being cracked. The race is on, not only by the Pharmaceuticals, but the Defense industry too.

I remember seeing a sci-fi film a while back, where they discovered the part of the DNA code, that was unique to each individual. The story was a thriller, where the head of the lab, could custom make an airbourne toxin that could be released, and only effect and kill, the one person it was designed too, genetically....kinda like the ultimate targeted bio-weapon.

Think about it, all they would need is a sample of your DNA.

See the thing is, there's a lot of things which sound impossible one day, that could one day become reality.

I remember seeing Kirk, flippin' his communicator on an episode of Star Trek, and saying to my mum, "Wow, I want one"....she laughed and said "Maybe some day son"...and what do ya know, 30 years later, I have one of the best "communicators" in the world...lol


Getting back to modern day genetics, have you heard we may be able to live indefinitely?

Some research has been done into human dna genetics, and as a result, they now think there may well be a recessive time bomb gene. The theory goes, if they isolate the gene, and can genetically deselect it or remove it, then human dna tissue will always regenerate, and we will live forever.

The theory is based around the cell managers, constantly accessing, and refering to the central dna blueprint, for a guide line of how to reproduce cells, tissues and organs. Somewhere on the dna strand is a self destruct code, that attivates the aging process. Remove the code, and the cell managers never get the instruction to start ageing, and viola eternal life....


have a nice day!


Bubbl3r

 

[Guest]

so when a elite cut is grown by one person and it is frosty as hell and you take the same elite clone to some one else flower room. it may have a different outcome.

 

[Grat3fulh3ad]

bubbl3r....
Sam has been growing breeding cannabis as long or longer than almost any other westerner out there. Sam has access to laboratory grade facilities, where he has carried out hundreds of experiments to learn about the cannabis genome and cannabis' production of psychoactive compounds. I would not doubt that Sam has been working cannabis longer than you've lived. Stop grasping for some perspective from which your wild ideas might be correct.

99.99% of all cannabis plants will never display genetic changes. I said it was theoretically possible for latent or dormant genes in an organism to become active due to some set of circumstances. I never asserted it was possible for cannabis, or any specific species.

LOL @ your carrot example... NEVER once was there a carrot plant which was changed from a purple carrot to an orange one by manipulating it's genes in any way. The way to go from orange to purple is through BREEDING.

If I said to you, that they will be blending THC and Cannabinoids in laboratories, just like they do with wines in a vineyard

You really DON'T know who you're talking to, do you? Sam has done more lab work separating testing and blending cannabinoids than anyone.... He literally wrote the book on the subject...

This thread is going to go nowhere as long as you continue to believe what you wish were true, instead of realizing that the work of those who have gone before you have done and benefitting from it... Stop trying to reinvent the wheel, just get in the car and ride.

 

[luciano28]

I hope he keeps arguing, lol. Getting some good info out of you guys.

I dont think he knows who Sam is.

 

[DoobieDuck]

I dont think he knows who Sam is.

Bump...DD

 

[knna]

I have a huge respect for Sam S and his work along the years. And i trust him about practical breeding, he has a lot of experience and thats what makes a difference.

But that dont mean i agree 100% of his statements, at least those at the theory level (i woulnd disagree him for practical consecuences of breeding except for something id got personal experience).

And his statement of genome being absolutelly unchanged is a scientific thinking wich has been proven wrong some time ago. Genome is changing continuosly, although at a very slow rate, so its very difficult to notice it. Thats why bonanist thought it remain absolutelly unchanged until modern DNA secuentation has become a widely avalaible tool for researchers some years ago. Id accept saying that DNA change is near negligible to affect practical breeding work. But saying DNA remains unchanged is a proven wrong statement from the latest scientific findings.

And although genome remains mostly unchanged on the short term, their expresion though epigenetics may vary on the some terms, and there are strong evidences (still not proof) that at least some of epigenetics changes are heritable at some degree. And currently scientifics thinks on genomic not only as DNA, but as its expression.

Coming back to topic, a recesive trait is intended as only being expresed when all the genome implied point it, and it being hidden when its not the case.

Not being a breeder myself, and being my interest only general on the topic, i thought that offspring potency may be along the full range of parents: crossing a high THC plant with a low THC plant produce an offspring varying between both ranges, and not tending to produce higher percentage of high TCH plants, that would be what would point to low potency being a reccesive trait. People with experience on extensive breeding can confirm it or not.

Peace,
knna

 

[Sam_Skunkman]

You are technically correct, that small changes like mutations, may happen to the genome, epigenetics traits may be inheritable, maybe, but what that has to do with what Bubbl3r said I am not sure. He will take a statement like that and construe that since we all agree that the genes are changing his statements must be true, to which I say nonsense, I will go further and say it is meaningless.

BTW, Most of a F1 cross of a high THC and a low THC variety will be halfway between the two, the F2 generation will express all values between the two P1 & P2.

-SamS

'I believe what I see, not what I would like to see.' -- Sam Skunkman

 

[knna]

You are technically correct, that small changes like mutations, may happen to the genome, epigenetics traits may be inheritable, maybe, but what that has to do with what Bubbl3r said I am not sure. He will take a statement like that and construe that since we all agree that the genes are changing his statements must be true, to which I say nonsense, I will go further and say it is meaningless.

Fully agree. Bubbl3r are conecting facts to conclusions without a link between them and little reasoning of the jump from fact to his statements.

BTW, Most of a F1 cross of a high THC and a low THC variety will be halfway between the two, the F2 generation will express all values between the two P1 & P2.

Thanks for confirming it. I believe that prove potency isnt neither reccesive or dominant, as you are stated previosly.

 

[Sam_Skunkman]

Getting back to modern day genetics, have you heard we may be able to live indefinitely?

Some research has been done into human dna genetics, and as a result, they now think there may well be a recessive time bomb gene. The theory goes, if they isolate the gene, and can genetically deselect it or remove it, then human dna tissue will always regenerate, and we will live forever.

The theory is based around the cell managers, constantly accessing, and refering to the central dna blueprint, for a guide line of how to reproduce cells, tissues and organs. Somewhere on the dna strand is a self destruct code, that attivates the aging process. Remove the code, and the cell managers never get the instruction to start aging, and viola eternal life....
Bubbl3r

I am not so sure this would be a good thing at all, people have real problems living in a sustainable way, all the world would need is to have everyone live for ever and the population to exceed 100 Billion real soon, with most of the earths resources owned by a few really old guys that took hundreds of years to buy and take control of most aspects of commercial life, like Bill Gates and what he has done with computer software, imagine Bill living forever, how horrible. Lets hope this never comes to be as the world is bad enough today, all we need is no death and the world is finished as we know it. But I guess this is not a worry because if Bubbl3r is promoting the idea the odds are pretty high that there is no chance it will ever come to be... let's be honest. At least I hope so...

-SamS

 

[bubbl3r]

BTW, Most of a F1 cross of a high THC and a low THC variety will be halfway between the two, the F2 generation will express all values between the two P1 & P2.

-SamS

'I believe what I see, not what I would like to see.' -- Sam Skunkman

Come on now Sam, you don't get off that lightly.....lol

Care to comment on what the frequency ratio of High/Low potency the F2 plants would be?....lol


Bubbl3r

 

[Grat3fulh3ad]

BTW, Most of a F1 cross of a high THC and a low THC variety will be halfway between the two, the F2 generation will express all values between the two P1 & P2.

-SamS

'I believe what I see, not what I would like to see.' -- Sam Skunkman

In addition, in the F2 generation, there will be plants with higher TCH than P1 or P2 and plants with lower THC than P1 or P2. (as evidenced by this study an illustrated in this graph. http://www.genetics.org/cgi/content/full/163/1/335/F3 )

 

[Grat3fulh3ad]

And the full study about the inheritance of chemical phenotype in cannabis sativa is here... http://www.genetics.org/cgi/content/full/163/1/335

 

[Grat3fulh3ad]

Come on now Sam, you don't get off that lightly.....lol

Care to comment on what the frequency ratio of High/Low potency the F2 plants would be?....lol


Bubbl3r

 

[bubbl3r]

And the full study about the inheritance of chemical phenotype in cannabis sativa is here... http://www.genetics.org/cgi/content/full/163/1/335

Yes Grat3fulh3ad, that is the link to the study, I mentioned on the previous page, provided by Scoobs.

I think the title kind of gives it away, but still it's a great read, and took me like 2 hours to digest....lol


When I read sentences like ....."However, there is evidence for the existence of "null" genotypes at the A locus, leading to plants devoid of any cannabinoids; such phenotypes have indeed been observed (V. G. VIROVETS and G. GRASSI)"...

...it makes me wonder, whether it's the constant inbreeding, that leading to the rise of these recessive traits.



Bubbl3r

 

[Grat3fulh3ad]

Yes Grat3fulh3ad, that is the link to the study, I mentioned on the previous page, provided by Scoobs.

I think the title kind of gives it away, but still it's a great read, and took me like 2 hours to digest....lol


When I read sentences like ....."However, there is evidence for the existence of "null" genotypes at the A locus, leading to plants devoid of any cannabinoids; such phenotypes have indeed been observed (V. G. VIROVETS and G. GRASSI)"...

...it makes me wonder, whether it's the constant inbreeding, that leading to the rise of these recessive traits.



Bubbl3r

You wonder such strangely illogical things....

If you read the study, why are you asking such questions as the ones in this thread? Only possible answer... you lack completely the education and/or understanding necessary to understand what you have read.

 

[bubbl3r]

You wonder such strangely illogical things....

If you read the study, why are you asking such questions as the ones in this thread? Only possible answer... you lack completely the education and/or understanding necessary to understand what you have read.

Grat3fulh3ad, I try not to rely on studies, or quote other so called experts....unlike you!

I read the study a couple of hours ago, as stated in a previous post...and to be honest, that study couldn't have made more sense to me, if I wrote it myself...lmao

Anway, do you or Sam feel confident enough to have a go, at guessing the 1:2:1 ratio of CBD/THC in that graph of the F2's......Ooops, oh no I gave it away didn't I, ah well never mind.


Ok lets try another one...what can you conclude from this passage:-

"The existence of a single locus determining the chemotype, with at least two alleles, gives a clear genetic meaning to the tripartite distribution of the chemotypes within populations, as observed by several authors when CBD vs. THC content plots are considered "...

...actually that may be a bit difficult for you, let me get back to you when I find an easier one...


Bubbl3r

 

[Scoobs]

The Null genotypes are most likely the result of mutations that have occurred resulting in the related enzymes being non-functional, resulting in none of the end products being produced.

inbreeding increases the frequency of mutations and other genetic abnormalities in a population.

Bubbl3r - I think you will find your answers in population genetics.

 

[bubbl3r]

Btw, I can't find anything, when I follow the link to your H3ad Seeds!

Have you given up on breeding/selling now?



Bubbl3r