Backcrossing phenos of same strain

A

Ahhajr1111

Member
Quick question, im crossing strains at the moment and i know about backcrossing to a degree, i have the white og strain in 3 different phenotypes f1, f2,f3 and f1pheno i used to reverse for male pollen..i know f1xf1 is consider backcross so youll get narrow pheno genetics but if you cross f1xf2, f1xf3 its still backcrossing but will it be hybrid of both or will it narrow down pheno genetics to get same f1xf2 and f1xf3??
 
mudballs

mudballs

Well-Known Member
Ahhajr1111 said:
Quick question, im crossing strains at the moment and i know about backcrossing to a degree, i have the white og strain in 3 different phenotypes f1, f2,f3 and f1pheno i used to reverse for male pollen..i know f1xf1 is consider backcross so youll get narrow pheno genetics but if you cross f1xf2, f1xf3 its still backcrossing but will it be hybrid of both or will it narrow down pheno genetics to get same f1xf2 and f1xf3??
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you are using the terminology wrong. we don't describe phenos from the same strain as phenos f1, f2, f3, you should say pheno #1, pheno #2...etc.
rewrite your question cuz im not sure i understand what exactly you are asking.
 
A

Ahhajr1111

Member
mudballs said:
you are using the terminology wrong. we don't describe phenos from the same strain as phenos f1, f2, f3, you should say pheno #1, pheno #2...etc.
rewrite your question cuz im not sure i understand what exactly you are asking.
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My bad haha *Quick question, im crossing strains at the moment and i know about backcrossing to a degree, i have the white og strain in 3 different phenotypes and i used pheno #1to reverse for male pollen..i know if you cross pheno #1 into itself is consider a backcross so youll get narrow pheno#1 genetics but if you cross pheno#1 and pheno#2, pheno#1 and pheno#3 its still backcrossing but will it be hybrid of both or will it narrow down pheno genetics to get same pheno#1 and pheno#2 and pheno#1 and pheno#3?? If that makes sense
 
xtsho

xtsho

Well-Known Member
F= filial generation. Crossing an F1 with an F1 is not backcrossing. F1 x F1 = F2. Backcrossing would be crossing the F1 back to its parent.

"The term backcross means that an F1 or F1' individual is mated to one of its parents (P1 or P2) or to another individual that is genetically identical to one of its parents. "

"Welcome to the genetics toolbox." This is a prototype of an interactive, online resource for students and faculty in the Department of Genetics at Rutgers University. All tools have been written by Dr. Terry R. McGuire.
 
mudballs

mudballs

Well-Known Member
Ahhajr1111 said:
My bad haha *Quick question, im crossing strains at the moment and i know about backcrossing to a degree, i have the white og strain in 3 different phenotypes and i used pheno #1to reverse for male pollen..i know if you cross pheno #1 into itself is consider a backcross so youll get narrow pheno#1 genetics but if you cross pheno#1 and pheno#2, pheno#1 and pheno#3 its still backcrossing but will it be hybrid of both or will it narrow down pheno genetics to get same pheno#1 and pheno#2 and pheno#1 and pheno#3?? If that makes sense
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You can just call em #2,#3 my bad. I didn't mean you need to include "pheno" every time.
but will it be hybrid of both or will it narrow down pheno genetics to get same pheno#1 and pheno#2 and pheno#1 and pheno#3??

since #2 and #3 have the same parents as #1 youd just get feminized F2's from #2 and #3 that would still have all of #1's fathers (male) genes anyway. Just cuz you used fem pollen doesnt remove the fathers genes from #2 & #3 offspring. right? Shit now im confused
 
A

Ahhajr1111

Member
xtsho said:
F= filial generation. Crossing an F1 with an F1 is not backcrossing. F1 x F1 = F2. Backcrossing would be crossing the F1 back to its parent.

"The term backcross means that an F1 or F1' individual is mated to one of its parents (P1 or P2) or to another individual that is genetically identical to one of its parents. "

"Welcome to the genetics toolbox." This is a prototype of an interactive, online resource for students and faculty in the Department of Genetics at Rutgers University. All tools have been written by Dr. Terry R. McGuire.
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Ahhh great thanks i had a misunderstanding, thanks for the information
 
A

Ahhajr1111

Member
mudballs said:
You can just call em #2,#3 my bad. I didn't mean you need to include "pheno" every time.
but will it be hybrid of both or will it narrow down pheno genetics to get same pheno#1 and pheno#2 and pheno#1 and pheno#3??

since #2 and #3 have the same parents as #1 youd just get feminized F2's from #2 and #3 that would still have all of #1's fathers (male) genes anyway. Just cuz you used fem pollen doesnt remove the fathers genes from #2 & #3 offspring. right? Shit now im confused
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Hahahhaah exactly, even when i have more of a understanding thanks to you and previous comment above...its still a bit confusing because like you said "since #2 and #3 have the same parents as #1 youd just get feminized F2's from #2 and #3 that would still have all of #1's fathers (male) genes anyway." Idk haha just will wait and see main thing is i loved all three phenos so i will have them in seeeds any other way
 
A

Ahhajr1111

Member
xtsho said:
F= filial generation. Crossing an F1 with an F1 is not backcrossing. F1 x F1 = F2. Backcrossing would be crossing the F1 back to its parent.

"The term backcross means that an F1 or F1' individual is mated to one of its parents (P1 or P2) or to another individual that is genetically identical to one of its parents. "

"Welcome to the genetics toolbox." This is a prototype of an interactive, online resource for students and faculty in the Department of Genetics at Rutgers University. All tools have been written by Dr. Terry R. McGuire.
Click to expand...
since #2 and #3 have the same parents as #1 youd just get feminized F2's from #2 and #3 that would still have all of #1's fathers (male) genes anyway. Whats your opinion on this?
 
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