Clarification on what an R2 cross is?

ImpulsiveGrower

ImpulsiveGrower

Well-Known Member
I can’t find any good info online can someone clarify what am R2 cross is? I understand R1 but how does one go from R1 to R2? Is it when you cross 2 strains that are already S1 versions of themself or crossing 2 lines that are already feminized?
 
ImpulsiveGrower

ImpulsiveGrower

Well-Known Member
waterproof808 said:
its the same as an s2. You cant find any info on it, because it is something Ethos genetics made up.
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They used 2 different phenos to make the seeds so it wasn’t selfed. They made it up forsure tho bc I can’t find shit. I’m actually running some ethos for the first time and the plants are outshining the rest of the tent and they are very uniform with each other. The cross is the Lemon Berry Candy OG R2. Huge buds and a lot of them!D9CA2FE8-8333-41ED-9E47-4A4691DFA707.jpeg
 
mudballs

mudballs

Well-Known Member
So you have two females A and B from same filial gen.
You self A and polinate B using A's pollen.
Offspring of B is now an R1 (not an s1).
Grow those out and anything polinated with the same pollen from A (P1)...offspring is R2.
Sort of like bx, you have to have the original P1 in there or it's not an R2.
 
Coldnasty

Coldnasty

Well-Known Member
mudballs said:
So you have two females A and B from same filial gen.
You self A and polinate B using A's pollen.
Offspring of B is now an R1 (not an s1).
Grow those out and anything polinated with the same pollen from A (P1)...offspring is R2.
Sort of like bx, you have to have the original P1 in there or it's not an R2.
Click to expand...
Learn something new every day, I had never heard of R2. I just cultivate though, don’t breed or chuck though I wish I could since it’s so interesting.
 
CashCrops

CashCrops

Well-Known Member
ImpulsiveGrower said:
They used 2 different phenos to make the seeds so it wasn’t selfed. They made it up forsure tho bc I can’t find shit. I’m actually running some ethos for the first time and the plants are outshining the rest of the tent and they are very uniform with each other. The cross is the Lemon Berry Candy OG R2. Huge buds and a lot of them!View attachment 5197167
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I have two of their strains, both smell like pineapple bubble gum, i mean exactly. The craziest smelling strain I have had in years.
 
A

ALPHA.GanjaGuy

Well-Known Member
I think even ethos is confused on their terms lol

Checking their site they show Ethos Apex R1 = Mandarin Cookies (cookies x mandarin sunset) X Lilac Diesel #10 (Silver Lemon Haze x Forbidden Fruit) x (NYC Cherry Pie x Citral Glue)

No reversal that I see (I always assumed there R1 was supposed to indicate a reversal).. Then..

ETHOS Cookies R2 (Ethos Cookies #1 x Ethos Cookies #16)
______
I thought they uses R1 to indicate a first gen reversal ie S1 but then they have S1 strains and clearly the R1 above is not a reversal as far as I can see. To confuse things more their ethos cookies R2 appears to be an F2 as it is just a cross of two phenos of the same plant but feminized so that would be an S1 from an F2?... Then their ETHOS Cookies #4 S1 is EC #4 x EC #4.

Last but not least to make it all more confusing Ethos doesn't even touch on it in their the ethos of plant names genetics nomenclature info, lol?

www.ethosgenetics.com/resources/the-ethos-of-plant-names-genetics-nomenclature
 
mudballs

mudballs

Well-Known Member
R2 and S2 are different...idk this ethos cat but he could be using the terms wrong nobody is perfect. I called plants triploid till i learned more about genetics and trifoliates...R2 and S2 aint the same guys.
 
A

ALPHA.GanjaGuy

Well-Known Member
mudballs said:
R2 and S2 are different...idk this ethos cat but he could be using the terms wrong nobody is perfect. I called plants triploid till i learned more about genetics and trifoliates...R2 and S2 aint the same guys.
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Can you let us know your understanding of R2 and help us define it?

It looks like ethos is using it to explain an F2 that has been self-ed to feminize but I am just going off some of their strains.
 
mudballs

mudballs

Well-Known Member
It's about allele frequency, chromosomes, etc. If you self a plant and use that pollen on that same plant you will get a certain range of offspring variance, yes? That is because of chromosomes and genes, and things called 'segregation'.
If you take that pollen from the selfed plant but put it on a sibling you will get a different genetic pairing, yes? The chromosomal make up is completely different than the composition of a selfed plants offspring. That's why you can't call them "S" gens...they are not using all of the moms chromosomes...just half.
 
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ALPHA.GanjaGuy

Well-Known Member
Awesome, so layman’s terms it’s essentially an F2 with self-ed pollen? But clearly you couldn’t call it F2 bcs it should also be fem seed not Reg?
 
ImpulsiveGrower

ImpulsiveGrower

Well-Known Member
mudballs said:
So you have two females A and B from same filial gen.
You self A and polinate B using A's pollen.
Offspring of B is now an R1 (not an s1).
Grow those out and anything polinated with the same pollen from A (P1)...offspring is R2.
Sort of like bx, you have to have the original P1 in there or it's not an R2.
Click to expand...
Thanks for the clarification
 
mudballs

mudballs

Well-Known Member
ALPHA.GanjaGuy said:
Awesome, so layman’s terms it’s essentially an F2 with self-ed pollen? But clearly you couldn’t call it F2 bcs it should also be fem seed not Reg?
Click to expand...
Close, its more analogous to a backcross than an f2...but it's still missing male genes. Sounds like you are following that critical reproduction line of thought defining this stuff. It would not be regs, correct
 
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