Breeding better auto-flowers in groups

[wg]

Hey Zy,

Typically, three to five generations are required to identify wild-chromosome segments that improve the phenotype of the elite line and to eliminate the negative traits that are caused by linkage drag. Once a particular exotic library has been developed, it can be used to rapidly identify other traits of agricultural importance.

That's from the article - I've been reading on hybrid vigor and linkage drag, do you feel that linkage drag is more prominent in autoflowering varieties than photosensitive ones? What I mean is, do you feel there's more undesirable traits in the current AF gene pool than there is desirable and that's why we should go Photo x Auto F1 to F6?

 

[Zygote]

Hey Zy,



That's from the article - I've been reading on hybrid vigor

Hybrid vigor; the best way to go about breeding for hybrid vigor is to select plants that show great vigor to begin with. And use these plants to make the hybrids. These new hybrids will show more (vigor) then can be used to make even more hybrid that show great vigor.

and linkage drag, do you feel that linkage drag is more prominent in autoflowering varieties than photosensitive ones? What I mean is, do you feel there's more undesirable traits in the current AF gene pool than there is desirable

No I don't think linkage is much difference between auto-flowering varieties and photosensitive ones.

IMO there is some linkage in auto-flowering
Sex linked genes; (The runt gene) in Lowryder it is on the female X chromosome. And it rarely crosses over to the Y chromosome. It can be eliminated by replacing the auto-flowering female X chromosome with photosensitive ones.

and that's why we should go Photo x Auto F1 to F6?

Many reasons.
The strain will be more homozygous for more traits that are CC or cc homozygous

heterozygous traits are Cc and they do not breed true.

It is a stander plant breeding practice to breed out to the F5 or F6 :thumbs:

 

[wg]

Zy, you're a brilliant individual and a huge asset to this community.. especially from a breeding perspective, thank you sir. :hug:

I tossed you some much deserved rep for that last post.. I have a question for you.. I currently have a Photo x Auto F1 that i intend to make S1's out of.. the S1 is technically another generation forward, so it will include more auto genes correct?

What about taking this Photo x Auto F1 and crossing it over a Auto x Auto F1 that has some of the genetics from the Auto in the Photo x Auto cross.. what do you think of this idea? Should I take the Photo x Auto to S5 first or would it be acceptable to use the feminized pollen from the first one I reverse? Can you shed some light on the pros and cons of this approach?

Your time is greatly appreciated.. thank you again! :thumbs:

 

[Zygote]

I tossed you some much deserved rep for that last post.. I have a question for you.. I currently have a Photo x Auto F1 that i intend to make S1's out of.. the S1 is technically another generation forward, so it will include more auto genes correct?

Yes 1:1:1 AA : Aa : aa

What about taking this Photo x Auto F1 and crossing it over a Auto x Auto F1 that has some of the genetics from the Auto in the Photo x Auto cross.. what do you think of this idea?

A backcross
Photo/Auto F1 X Auto/Auto

Should I take the Photo x Auto to S5 first or would it be acceptable to use the feminized pollen from the first one I reverse? Can you shed some light on the pros and cons of this approach?

There are some great threads on selfing over at UDG in the breeding section

 

[jayp]

Hey Zy glad to see you on here bro haven't seen you around in awhile how is everything? Any outdoor stuff going on over at Zy's garden? Cant wait to see what you do have going on. :smokebuds::smokebuds:

 

[Zygote]

Good and green here!

We are working on, Removing (Apical Dominance) form an auto lines. We are trying to increase gene frequency for (lacks Apical Dominance) in hope of making an auto-flowering super bush for outdoor use.

 

[wg]

Care to elaborate at all? What lat are the plants being bred at? You're removing it via breeding and back crossing or a different method? It would auto flower, but what would the run time be about? Are you aiming for an early finisher or a late yielder?

 

[Zygote]

From 30N to 55N lat.
@ the F2 generation, selecting for lack of Apical Dominance and Auto-flowering.
Normal strait line breeding. Within each “signal family group” testing 12 family groups.
Not aiming
Going with the flow.
Cant say; longer than a normal auto. Range form 75 to 90 days. Yield 3X compared to Normal.

 

[GoAuto6]

3 X ......... damn

 

[Zygote]

3 X ......... damn

How about just 2X