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Post by keen101 (Biolumo / Andrew B.) on Nov 21, 2017 0:50:57 GMT -5
we understand you were busy this summer Joseph. But that means we didn't see many photos. Do you have any exciting photos from this year? Any new or exciting things showing up in your promiscuous tomato project?
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Post by keen101 (Biolumo / Andrew B.) on Jan 27, 2018 15:24:15 GMT -5
The literature I read says that LA1777 is self-incompatible. But it seems to me like it is self-pollinating, at least to some small degree or other. It seems like some of the F2 descendants of [Fern X La1777] were self-incompatible. So I don't know what to say, other than it's messy. Well i remember reading in one paper that S. pennellii was SC about 4% of the time. Perhaps S. habrochaites is the same, or at least LA1777. I'm looking for your info about how LA1777 was an off type different from the other habrochaites accessions, but i can't find it. |
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Post by Joseph Lofthouse on Jan 27, 2018 16:48:56 GMT -5
I'm looking for your info about how LA1777 was an off type different from the other habrochaites accessions, but i can't find it. LA1777 was a little delicate plant. The stems were thin and only a couple feet long. The stems on the other habrochaites accessions were thick, and grew 4 to 6 feet long. The stem on LA1777 was fibrous. The stems on the other accessions snapped when bent, like one might snap a young green bean. The leaves on LA1777 were smaller than the other accessions. LA1777 had an unobtrusive floral display that kinda got lost in the foliage. The floral displays on the other accessions were bold and carried high above the foliage. LA1777 had better tasting fruits, and not as much brown coloration in the fruits. Here is a small leaf of LA1777, on the left, compared to the leaf of an F1 hybrid between domestic and LA1777.  The other habrochaites accessions had huge leaves, like this:  |
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Post by keen101 (Biolumo / Andrew B.) on Jan 27, 2018 17:36:54 GMT -5
I'm looking for your info about how LA1777 was an off type different from the other habrochaites accessions, but i can't find it. LA1777 was a little delicate plant. The stems were thin and only a couple feet long. The stems on the other habrochaites accessions were thick, and grew 4 to 6 feet long. The stem on LA1777 was fibrous. The stems on the other accessions snapped when bent, like one might snap a young green bean. The leaves on LA1777 were smaller than the other accessions. LA1777 had an unobtrusive floral display that kinda got lost in the foliage. The floral displays on the other accessions were bold and carried high above the foliage. LA1777 had better tasting fruits, and not as much brown coloration in the fruits. Here is a small leaf of LA1777, on the left, compared to the leaf of an F1 hybrid between domestic and LA1777. The other habrochaites accessions had huge leaves, like this: Thank you, that is very helpful information. I find it interesting and maybe ironic that since LA1777 seems to be an outlier and distinct from the others that it consistently the #1 accession of S. habrochaites requested year after year from the TGRC. I wonder if that is just by chance or is there some reason everyone is requesting that one more than other accessions. Seems the genetic diversity from that species may not be getting sampled adequately to me. I wonder if DarJones would have any knowledge about why that might be. |
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Post by DarJones on Jan 29, 2018 2:38:08 GMT -5
Some research was published indicating LA1777 has unique and exploitable genes useful in commercial tomato breeding. One of the big seed companies tested LA1777 and found a unique set of genes they could exploit. For example, one unique gene nearly doubles production of commercial tomatoes when it is introgressed into the breeding lines. Between the university research and the seed companies, LA1777 has become the standard variety for most research on this species of tomato.
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Post by farmermike on Feb 4, 2018 1:19:57 GMT -5
Last summer, I grew 2 S. habrochaites plants from Joseph Lofthouse. Here they are on June 10th -- not long after going into the ground.  I didn't cage them, and they formed a big sprawling mound all summer, and were still stunningly in bloom in mid-December when our first frost suddenly killed them. I think they were actually blooming more heavily, right at the end, than they had been at any point through the summer. I decided I should take a photo one day, but when I came out with the camera the next morning they were toast.  Well, I looked at them again today and one of them (the one on the left in the 1st photo) is re-sprouting from the ground. How about that? The other one is showing no signs of life.  I guess now I'll have to work on breeding a perennial tomato! Need to decide what tomato(s) to cross it with. After the plants froze, I picked up all the berries that had dropped, and left them sitting a bowl -- because somehow I thought they should keep ripening. They're still sitting in that bowl. This is a good reminder to go process those seeds. This is a really interesting plant, and I'll definitely keep growing it. Next time I'll put them in a more conspicuous location, so people can enjoy the flowers -- maybe even in the flower garden. |
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Post by Joseph Lofthouse on Feb 5, 2018 2:05:29 GMT -5
farmermike: Thanks for the grow report. Good observation! The plant on the left resembles the most frost tolerant accessions in my garden. In 2016, they were still blooming months after the rest of the tomatoes (and LA1777) had been killed by frost. The plant on the right looks like a descendant of LA1777 (probably crossed with the more frost tolerant accessions).
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Post by keen101 (Biolumo / Andrew B.) on Feb 5, 2018 21:23:06 GMT -5
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Post by farmermike on Feb 14, 2018 19:00:12 GMT -5
Neat! How cold did it get after the first killing frost- were there lots of subsequent frosts? How hard did the ground freeze? Are you yet past the frost danger for your area of California? It's actually been an unusually mild winter here. We usually get our 1st frost around mid-November, but it was a month later this year. Our usual low temp is around 26F, but this year the low was only 34F. (Of course, this is measured in a protected location, and it would have been colder in my fully exposed garden.) The ground didn't freeze at all, and it looks like some of my peppers may survive the winter. Only one other tomato seems to have survived, and it happens to be this one with a highly exserted stigma. Interestingly, that one failed to set any fruit last summer, while all its (presumably) siblings did. I was bummed that I didn't try to hand pollinate it. I wonder if it is self-incompatible; it is out near the street and may not have much pollinator activity. I may get another chance to get some fruit from it next summer! Apparently, we did get another very light frost the other night. The surviving S. habrochaites was damaged. The recorded low was 38F. No frost was still visible by the time the sun came up. Looks like it will recover. Technically our last frost is supposed to March 15, but I suspect it will be sooner this year.  |
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Post by imgrimmer on Sept 8, 2019 15:32:20 GMT -5
2 fruit types of habrochaites hybrids from Joseph   |
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Post by imgrimmer on Sept 12, 2019 0:52:39 GMT -5
the top one is unripe. It is the plant that had pollination issues, it has excerted stigmatas. The yellow one is a selfing type. Taste is different from domestic the smell of the leaves too. Both came from Josephs supposed autogamous hab hybrid seeds.Judged by the leaves they are siblings.
I have some more plants which are like the green one.
I haven`t had fruits of habrochaites or its crosses before, (pure habrochaites didn`t set fruit last year)so I can`t compare it. The yellow ones are soft but hard to detach when ripe.
Do have pictures of yours?
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Post by imgrimmer on Sept 13, 2019 1:20:47 GMT -5
I guess this one is ripe  this is how fruits detach from the plant  Fruits on the yellow one doesn`t break off like that. They behave like any domestic variety but are hard to detach even when ripe and soft. I checked my notes both plants the yellow and the more hab like plant are from Josephs autogamous F3 selection. Mine are segregating too. A big minus is that they are very susceptical to (probably) early blight. Other lines struggle too but not as much as these. Early blight is very severe this season but late blight is still nearly absent. |
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Post by imgrimmer on Oct 17, 2019 14:11:46 GMT -5
 Fairy Hollow harvest. (They are probably not a F3...) These are the edible ones. I lost most seeds of the other type (the green more habro like ones) while washing them in a sieve. They are so tiny |
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