f2b2???!?! lol

[Joanna, Zoe & Bender]

So Benders mom is a second generation crossback which I think is a f2b. And his dad is a pure poodle. What does this make ben? It doesn't matter of course but im so curious.
His body shape and face (when wet) looks more like a lab but with all the mixes and crossbacks going on in this family line...seems like he's more poodle.

[Adina P]

I think an F2b crossed with a parent breed means F2bb, but not 100% positive.

[Elizabeth & Cosmo]

I think Bender would have to be an F3, if his mom is an F2. Those designations describe the generation.

So, to account for the backcrosses, he might be an F3b or F3bb.

But I'm not 100-percent sure, either! *^_^*

[Ginny Nightingale]

Wonder why anyone would want to keep adding the poodle in there? I guess to produce less shedding in the offspring--well anyway, my breeder describes this same cross as an F3.

[Adina P]

But doesn't a generation ONLY advance one "F" past the lowest generation?  So if one parent is an F2b...you can't go higher than that when the other parent is a parent breed...no?  For example if you breed an F1 with an F150...you STILL get an F2.  So how can you add a higher number when you're just going crossing back to the parent breed?

[F, Calla & Luca]

What is an f150? But yes you can't advance more than one generation past the lowest usually I think.

[Adina P]

I think it's a truck, but in this case it's just a really really high generation ;-)

[Elizabeth & Cosmo]

Granted, it has been a lot of years since my genetics courses in college, but here's the way I was thinking of it:

Labrador x Poodle

                V

       Labradoodle F1              x Poodle                         F1 Generation

                                       V

                              Labradoodle F2b x Poodle             F2 Generation

                                                           V

                                                 Labradoodle F3b         F3 Generation

[Karen, Jasper and Jackdoodle]

An F1 crossed back to a poodle produces F1Bs. That much I am sure about.

[F, Calla & Luca]

Right so the above diagram is wrong at the get go.

[Elizabeth & Cosmo]

Clearly, my  memory is shakier than I thought! Thanks for the info--I need to dig those old textbooks out and review! *^_^*

[Elizabeth & Cosmo]

Here is a link to some discussions on this at goldendoodles.com

If you look at the chart entitled SECOND GENERATION BACKCROSS GOLDENDOODLES  -  F2B,

there is a brief discussion of the generation designations for backcrosses.

[Karen, Jasper and Jackdoodle]

Okay, so an F2B is the result of an F1 bred to an F1B.