Breeding with wild tomato species

[Joseph Lofthouse]

These are Hummingbird tomato: 50% pimpinellifolium, also lycopersicon, pennellii, and habrochaites.

"Everything I don't like except amazing flowers and productive". Red fruited, exerted style, acting self-incompatible.


Orange fruited. Beloved by taste testers.

[Joseph Lofthouse]

Possibly solanum chmielewskii ancestors.

[Joseph Lofthouse]

Possibly solanum peruvianum as ancestors. And I believe it based on the leaf morphology. These look like classic peruvianum. As far as I remember, they were planted on the same day... I planted them as clumps (of about 10 plants).





PI306812 had a number of off-types in it.

[Jordy]

Is it normal for peruvianum to have small leaves on the flower stalk like that is seen on the stems ( leaf axils ) of peruvianum or habrochaitus.

[Joseph Lofthouse]

Wild tomatoes in general contain much more genetic diversity for all sorts of traits than the narrow range of traits found in domestic tomatoes. Sometimes that could include leaves in the inflorescences.

[Alex]

Sara's Galapagos Tomato: Probably Pimpinellifolium x Cheesmaniae, Small red fruit

I compared Sara's tomato from HRSeeds and from TerroirSeeds. In HRSeeds, Sara's tomato is not a true variety, its leaf phenotype does not match S.pimpinellifolium x S.cheesmaniae hybrid, it has zero heat resistance, and it immediately dies from heat. Sara's tomato from TerroirSeeds has correct phenotype, has extreme heat resistance, and is capable of setting fruits in hot weather.

[Alex]

How can Sara's tomato taste like a Solanum lycopersicum var. cerasiforme, but not like either of her parents S.pimpinellifolium and S. cheesmaniae? In addition, size of fruit is larger than that of both theoretical parents. What could be explanation for this?

[William Schlegel]

The most logical explanation is a domestic or at least cerasiforme parent in the mix. Genetic testing could clarify. Even when wild collected mixing is possible.

[Alex]

The most logical explanation is a domestic or at least cerasiforme parent in the mix. Genetic testing could clarify. Even when wild collected mixing is possible.

Yes, William, there are signs of S. lycopercicum in genes, but it is not listed anywhere. But it is important to understand how easily Sara's tomato can be crossed with S. lycopercicum. Sara's tomato is one of few tomatoes that can survive summer heat on Guam, and therefore is a potential source for crosses to improve heat tolerance. I plan to cross Sara's tomato with at least Texas wild cherry tomato in late November or December, because its heat survival rate is about 2% of population. And perhaps improve flavor, since Sara's tomato is tastier and does not require over-ripening like Texas one.

[Alex]

red arcanum https://www.hrseeds.com/product-page/solanum-arcanum-red-tomato-hr "This is a strange one, one bract on a Solanum Arcanum plant made red tomatoes! It is NOT a hybrid or cross of any kind it just simply put out a red variation of Solanum Arcanum."

Since I personally observe metaxenia in wild tomatoes (https://opensourceplantbreeding.org/forum/index.php?msg=17925), it's reasonable to assume that case described is metaxenia. In this case, paternal traits manifested themselves in a change in color of fruit on mother plant.