segregating the jellybean tomato

[Jim]

Ok. I am going to grow some seeds from some storebought jellybean tomatos. Gonna see what grows out.

[Alan]

I'll be growing out some F-2's saved from a commercial growout of Jellybean hybrid this year, maybe we can compare notes and see what we get that is interesting.

[Jim]

good idea.. After posting I went looking for my seed of this variety. I need to locate it..lol.

[Alan]

Sounds good to me, I will keep you updated.

[Jim]

I was wrong. I didn't save the seed. I went looking and couldn't find it. THe more I thought about it the I realized I forgot to save some for seed before they got eaten. Sorry man.

If I can find some in the store I'll save some seed. I'm going to Wallyworld saturday. I'll look there,

[kctomato]

I dont know for sure but from what Ive seen and heard about other grape lines

it sounds like the lines used to make the hybrids are similar concurrent lines where's the lines are combined to incorporate diease resistance or a little more vigor possibly

as a result the offspring are very similar

If someone wants me to explain that more I can

[Alan]

Sure Kc, if you don't mind to explain it would probably be good for people here to know about this anyhow if they are wanting to do some de-hybridization. I have a pretty good idea of how that works with sweet corn and with tomatoes, but I'm not so sure I could explain it as well with tomatoes.

[Jim]

From the looks of the jellybean its super similar to the other grape style tomatos available at your local grocery store. The more I've looked lately the more I find more interesting shapes and colors to play with. Totally tomatos fond red mini and grapette look to be nice one to get to an OP state.

[kctomato]

A simplified version of why this might occur or how to do so looks like the following:

Say you have a tomato line you really like for flavor but it doesnt possess some other needed traits. Ill just say multiple disease resistance. Now you could just develop a line but commecially a hybrid is desired so one can profit. So you develop two highly related lines possessing their own disease traits and cross them. Might look something like this:

Three lines for crossing
Desirable parent - Line A
fusarium resistant line - Line B
nematode resistant line - Line C

So you cross Line A into line B and select for ones most like the desirable parent and possessing fusarium resistance and you work several generations to stablize it.

Same goes for Line A to line C

If you selected correctly they should be very much like the original parent yet each have the resistant traits desired to make an F1 which would incorporate both resistances.

Once these lines are reasonable stablized you can use them to make a hybrid. This hybrid wont segregate much except for the resistances (which most people dont "see" unless they have some way to test for it).

A faster way to "fix" a line more like the desirable parents is through backcrossing. This is probably done more than above because it ensures more genes from the desirable parent are there and does so faster than the other method.

Reccurent parent would be "Line A" continuing with the above example

This process would be done on line B and C seperately while selecting for the desired resistance and then those crossed together.

[Jim]

thank you for this explanation. I haven't seen stuff like this since highschool biology. I love it.

[Alan]

Thanks for the info KC, much more efficient than me trying to explain it just in words, I really appreciate you sharing that with us, it's very helpful.

-Alan

[tatermater]

New to to the Homegrown Goodness forum, however, some with know me a bit. I have not grown the Jelly Bean.

I have spent a lifetime segregating just about any tomato hybrid I get a hold of. Much of the segregating populations are inventoried for future work, and I bring them out form time to time.

There are a number of people on this forum with whom I have either emailed, talked with on the phone, or shared messages on other forums.

For those that don't know me, I am a tomato and potato breeder. My most well known tomato is the Green Zebra, less so about two dozen others. I have spent most of my time lately on potato breeding.

I can't guarantee anyone that I can answer your questions, but I will try. I often go off on a tangent, so beware!

TaterMater is my user name here but most people know me as Tom Wagner. I live in Everett, Washington. 2008 starts my 55th year of breeding fruits and vegetables.

Thanks.

[Alan]

Congrats on your 55'th year Tom, were glad to have you here.

Do you mind listing a few of your commercially available tomatoes so that folks here might have a better idea of who you are and what you have done?

I also wanted to ask you if you have ever done any specific breeding in searching for greenhouse cultivars, particularly those not grown in a hydrophonic system?

[tatermater]

Alan,

Thanks for allowing me to post here.

I will list just a few of the tomato varieties that I did some breeding work on and then selfed to be true breeding.

Green Zebra, Green Grape, Greenwich, Green Bell Pepper Tomato, Schimmieg Stoo (sister selection aka Stripped Cavern), Schimmeig Creg, Elberta Girl, Jiarg, Brandy Stripe (aka Vintage Wine) Snow Berries, Lime Green Salad, Brown Derby, Ruissagh, Verde Claro, Chile Verde tomato, Green Sleeves (aka Green Sausage) Never Will, and a few more. The problem I have is that these old lines are backed up by hundreds of newer lines not yet released.

Much of my work in 2007 was to advance organic tomato adaptation of greenhouse type tomato crosses and OP's. That will continue. Cluster type hybrids, Cocktail tomato hybrids, Truss type hybrids, Roma Cluster hybrids, and Cherry type hybrids, all involving heirloom tomato background. These lines, hybrids and selfing generations were planted in the field and in greenhouses during the last few years to adapt to the NW Washington area. Just making hundreds of new crosses and extracting seed from proprietary hybrids, F-2s, F-3s, etc., took much of the time devoted to tomatoes. The rest of the time was with my potato breeding.

Tom Wagner aka TaterMater

[Jim]

Tom welcome. Your achievements are astounding. I'm sure we will all learn a lot from you.

Jim