Forum area for discussing hybridizing tomatoes in technical terms and information pertinent to trait/variety specific long-term (1+ years) growout projects.
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#1 |
Tomatovillian™
Join Date: Jul 2015
Location: Manitoba,Canada
Posts: 79
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Am wondering how difficult it is to make your own bi color? What are some of the first basic steps? Thanks.
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#2 |
Tomatovillian™
Join Date: Jun 2011
Location: Idaho
Posts: 241
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Super easy. Any cross that invloves at least one bicolor parent will produce bicolor offspring.
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#3 |
Tomatovillian™
Join Date: Oct 2012
Location: Vancouver Island
Posts: 5,931
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Agreed. Use a bicolour as one of the parents and then grow out quit a few F2 plants. You should find a bicolour or two among them. The more F2 plants you grow, the higher the odds of finding something you like. Good luck
KO |
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#4 |
Moderator Emeritus
Join Date: Jan 2006
Location: Upstate NY, zone 4b/5a
Posts: 21,169
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And an example
http://tatianastomatobase.com/wiki/Orange_Russian_117 The deliberate cross by Jeff Dawson was between Russian 117,which is a large red heart and Georgia Streak,which is a bicolor http://tatianastomatobase.com/wiki/Georgia_Streak ... and then grow out saved F2 seeds to start with and then make selections and keep doing that until you have something genetically stable. It can take several years to do that. Carolyn
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Carolyn |
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#5 |
Tomatovillian™
Join Date: Jul 2015
Location: Manitoba,Canada
Posts: 79
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Thanks for the replies everyone.what I really meant is to start from scratch with no bi color parent.do you just cross two colors and keep growing out the seeds in hopes of finding a mix color somewhere?that's what I'd really like to try.
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#6 |
Tomatovillian™
Join Date: Jun 2011
Location: Idaho
Posts: 241
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Without the 'bicolor' gene, you'll never get bicolor offspring, just a segregation of solid colors (though you can get colors "in-between" the original two).
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#7 | |
Moderator Emeritus
Join Date: Jan 2006
Location: Upstate NY, zone 4b/5a
Posts: 21,169
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![]() Quote:
https://www.google.com/#q=genetics+o...tomatoes&hl=en Last I knew the genetics of bicoloredness was not known in it's entirety, but I could certainly be wrong. Paddy,you speak of a bi color gene,does it have a name,or are your comments based on observations of all the wonderful crosses that you have made? Carolyn
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Carolyn |
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#8 |
Tomatovillian™
Join Date: Jun 2011
Location: Idaho
Posts: 241
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What (bi) color combo are you hoping for?
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#9 |
Tomatovillian™
Join Date: Jul 2015
Location: Manitoba,Canada
Posts: 79
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I just wanted to use what I have.yellow and red.I thought a bi color must have come from a mix of two colors.sounds more complicated than I thought.
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#10 |
Buffalo-Niagara Tomato TasteFest™ Co-Founder
Join Date: Aug 2006
Location: The Niagara Frontier
Posts: 942
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Cherokee Bi-Color! (Cherokee Green was one parent, the other parent was NOT a bi-color!
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#11 |
Tomatovillian™
Join Date: Dec 2010
Location: Sunol, CA
Posts: 2,723
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Based on it's coloring, I think Cherokee Green may be a subtle bicolor, and that the bicolor trait is enhanced when a yellow parent is combined with Cherokee Green.
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#12 |
Tomatovillian™
Join Date: Jun 2012
Location: Illinois, zone 6
Posts: 8,407
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Cherokee Green certainly seems different from the other GWR varieties I have grown. I think of it more as a yellow tomato with zing. Maybe it's a green and yellow bicolor?
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#13 |
Buffalo-Niagara Tomato TasteFest™ Co-Founder
Join Date: Aug 2006
Location: The Niagara Frontier
Posts: 942
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Another segregate from a Cherokee Green cross...
It ripened fully from the first pic to the 2nd if you waited long enough! Last edited by korney19; December 18, 2016 at 12:39 AM. |
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#14 |
Buffalo-Niagara Tomato TasteFest™ Co-Founder
Join Date: Aug 2006
Location: The Niagara Frontier
Posts: 942
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You get things happening above when you save seeds from fruits like these...
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#15 |
Tomatovillian™
Join Date: Feb 2006
Location: Alabama
Posts: 2,250
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Mark, this is a good example of dosing effect. I've grown out some crosses with Cherokee Green and had very similar results. If you grow the resulting seed, they will segregate 1 green when ripe, 3 salmon bicolor, and 12 that can be either red or yellow depending on the other parent. This is caused by the biopath interruption from the green when ripe gene. The full lycopene biopath is present in Cherokee Green but it is stopped prior to production of yellow carotenoids. When Cherokee Green is crossed with a yellow variety, the yellow patches across GWR and CG patches across Yellow. The result is a red fruit but with dosing effects since only one copy of the gene is present to bypass GWR and one copy is present to bypass Yellow.
Now for the interesting tidbit. If you grow out the seed, 1 in 16 will produce the brightest candy apple red tomato you have ever grown. |
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