Thursday, September 24, 2009
Thursday, September 03, 2009
Saturday, August 29, 2009
Programme 2009 des conférences et des séminaires de Tom Wagner
Tom Wagner et son traducteur Québécois Michel Lachaume seront accompagnés par Alan Bishop , le fondateur du réseau Homegrown Goodness, en Amérique du Nord.
- Le 12 septembre, à midi, Tom Wagner animera une conférence au Château de Labourdaisière, à Montlouis (37), invité par Louis-Albert De Broglie, pour le Festival de la Tomate au Conservatoire National de la Tomate, sis au Château.
- Le 12 septembre, au soir, Tom Wagner animera une conférence à la Fête de la Tomate à Haverskerque (59), invité par Franck Bédouet.
- Le 13 septembre, Tom Wagner participera toute la journée à la Fête de la Tomate à Haverskerque (59).
- Le 14 septembre au soir Tom Wagner sera reçu à l'Hôtel de Ville de Bruxelles.
- Les 15/16 septembre, Tom Wagner animera un séminaire de 2 jours à Gembloux en Belgique. Inscriptions chez Kokopelli Belgique.
- Les 22/23 septembre, Tom Wagner animera un séminaire de 2 jours au Château de la Bourdaisière. Inscriptions chez Kokopelli France.
- Les 25/26 septembre, Tom Wagner animera un séminaire de 2 jours à Morlaix. Inscriptions chez Kokopelli France.
- Le 27 septembre, Tom Wagner sera présent à une fête paysanne à Craonne en Bretagne sur laquelle Lucine Jegat présentera 300 variétés de pommes de terre.
- Les 28/29 septembre, Tom Wagner sera l'invité de Bio d’Aquitaine. Il animera une journée de formation le 28 septembre et donnera une conférence à 14 heures le 29 septembre. Inscription près de Bio d'Aquitaine.
- Le 1 er octobre, Tom Wagner sera à la Coopérative Longo Maï près de Forcalquier.
- Les 3/4 octobre, Tom Wagner animera un séminaire de 2 jours en Suisse Romande. Inscription près de Sandra.
Tom Wagner ira ensuite animer des formations en Allemagne, en Autriche, au Danemark, en Angleterre et en Irlande
Tuesday, August 18, 2009
Tomato late blight resistance genes are non-allelic
Quote:
Non-allelic genes are genes located at different loci on the same
chromosome or on different chromosomes altogether.
The gene, Ph-3, Chromosome 9
Ph-1 (chromosome 7
Ph-2 (chromosome 10).
Reports are that
Quote:
WV106
carried a single dominant allele conditioning a high level
of resistance to P. infestans tomato race 0 (T0)
(Ph-1)
and that WV700 possessed one or more dominant resistance genes (but is associated with Ph-2)
Quote:
Researchers at the AVRDC identified resistance to late blight from Solanum pimpinellifolium L. accession L3708. Segregation data obtained for resistance do not support the hypothesis of single gene control of the full resistance trait, but suggest that more than one gene is involved, and that these genes interact in an epistatic manner. Differential responses were also observed between the resistant CU-R lines and the resistant CLN-R lines, which were independently bred from L3708. RFLP analysis confirmed the Ph-3 gene derived from L3708 is located on chromosome 9.
The meaning of (genes interact in an epistatic manner )
epistatic (not comparable)
1. (genetics) Of or pertaining to epistasis, the interaction between genes.
I have a lot of self doubt about my work with Late Blight resistance. Since I had great results with sinlgle dominance with WV 700 with my particular strain of it for years 2004-2007. But 2008 is a year that needed homozygous Ph-2 and Ph-3 clones. Mountain Magic has heterozygous genes as a hybrid and it did not survive to the end of the infestation process. Only my most homozygous clone (Ph-2 and Ph-3)survived totally. I will be testing some seedlings from the recent hybrid of WV 700 X homozygous Ph-1 and 2 for this fall. The hybrid would be homozygous for Ph-2 but only heterozygous for Ph-1.
The good news is that I am transferring the genes Ph-2 and Ph-2 into a wide variety of clones such as Black Pineapple, Black Prince, Green Sleeves, WV 700, and many, many more. I've got to remind myself to sow a huge compilation of varieties soon.
The kind of work I am doing with require that I do a large extension collaboration. I will be exploring ideas to that effect soon.
Tom Wagner
Monday, August 17, 2009
CULTIVATED SPECIES ACCESSIONS WITH TUBER FLESH COLOR
PI #
SOLANUM SPECIES
DESCRIPTION
I am putting this list up on the blog to show that I am involved in many types of research. The list below of potatoes from South America will be dug this August 28 in Vancouver, WA.
I have already collected the inter-mated crosses and the tremendous amount of open pollinated berries from a vast majority of these. The tubers will be of some importance to grow again, but the TPS will be invaluable for many years to come. I could plant many acres of transplants grown just from the berries of this group.
Yes the potatoes will be video taped also as they are dug
PI 310490* (phureja)
YELLOW RED
PI 310493*(phureja)
YELLOW
PI 225667*(phureja)
DEEP YELLOW
PI 225667* (phureja)
YELLOW - PURPLE RING
PI 225673*(phureja)
DEEP YELLOW
PI 225677*(phureja)
DEEP PURPLE FLESH - PURPLE MOTTLED ON WHITE FLESH
PI 225686*(phureja)
WHITE - PURPLE RING
PI 225686*(phureja)
DEEP YELLOW
PI 225688(phureja)
YELLOW - PURPLE SPLASH
PI 225689(phureja)
YELLOW - PURPLE SPLASH
PI 225689*(phureja)
YELLOW - PURPLE
PI 225689(phureja)
BRIGHT YELLOW
PI 225689*(phureja)
DEEP PURPLE - DARK YELLOW
PI 225693* (phureja)
DEEP YELLOW
PI 225693*(phureja)
DEEP YELLOW
PI 225694*(phureja)
DEEP YELLOW
PI 225705*(phureja)
DEEP YELLOW
PI 225710*(phureja)
DEEP YELLOW
PI 320355*(phureja)
DEEP PURPLE
PI 320355(phureja)
YELLOW SKIN - DEEP PURPLE
PI 320370(phureja)
YELLOW - RED CENTER
PI 320370*(phureja)
DEEP YELLOW - RED PHLOEM
PI 320373*(phureja)
DEEP YELLOW
PI 320373*(phureja)
DEEP YELLOW
PI 320377*(phureja)
DARK PURPLE SKIN - YELLOW FLESH
PI 320377*(phureja)
DARK YELLOW
PI 320377(phureja)
DEEP PURPLE
PI 320379*(phureja)
DEEP YELLOW
PI 320379* (phureja)
DEEP YELLOW - RED RING
PI 320379*(phureja)
DEEP YELLOW - RED RING
PI 320387(phureja)
DEEP YELLOW
PI 320390(phureja)
PURPLE CENTER
PI 320390*(phureja)
YELLOW
PI 320391*(phureja)
DARK YELLOW
PI 320391*(phureja)
DARK YELLOW
PI 320391*(phureja)
DEEP PURPLE CENTER
PI 320391*(phureja)
DEEP YELLOW
PI 498171*(phureja)
DEEP YELLOW
PI 498171*(phureja)
YELLOW - RED
PI 292110*(stenotomum)
DEEP YELLOW - NEAT SHAPE
PI 205527(stenotomum)
PI 234007* (stenotomum)
DEEP PURPLE
PI 234007*(stenotomum)
DEEP PURPLE
PI 234015(stenotomum)
PI 209421(andigena)
PURPLE FLESH
PI 209421*(andigena)
PI 186179*(andigena)
RED FLESH
PI 214441*(andigena)
BRIGHT YELLOW
PI 217448* (andigena)
BRIGHT YELLOW
PI 280868*(andigena)
LIGHT RED
PI 280871*(andigena)
YELLOW
PI 280921*(andigena)
YELLOW
PI 280952* (andigena)
INTERESTING TUBER
PI 281004*(andigena)
YELLOW
PI 281007(andigena)
PURPLE RING
PI 281012* (andigena)
PURPLE MOTTLED
PI 281079*(andigena)
WHITE SKIN - PURPLE CENTER
PI 281080*(andigena)
PURPLE SKIN - PURPLE RING
PI 281080*(andigena)
PURPLE/WHITE SKIN - DEEP YELLOW
PI 281189(andigena)
RED SPLASH
PI 281189* (andigena)
PURPLE SPIKE IN MIDDLE
PI 281189 (andigena)
PURPLE SPIKE IN MIDDLE
PI 281206* (andigena)
YELLOW - RED
PI 281219 (andigena)
DEEP YELLOW
PI 29211 (andigena)
DEEP YELLOW
PI 473260* (andigena)
YELLOW - RED SPLASH
PI 473260* (andigena)
YELLOW - RED CIRCLE
PI 473260*(andigena)
YELLOW - RED CIRCLE
PI 473260*(andigena)
RED SKIN - RED CENTER
PI 473276*(andigena)
PURPLE - YELLOW
PI 473276* (andigena)
YELLOW
PI 473276*(andigena)
YELLOW
PI 498310*(andigena)
PURPLE SPOTTING
PI 498310*(andigena)
PURPLE CENTER
PI 498310 (andigena)
DEEP PURPLE
Friday, August 14, 2009
| CAMPARI -Campari(ng) Descendancies There has been a couple of threads about Campari, namely; http://tomatoville.com/showthread.php?t=12120 http://tomatoville.com/showthread.ph...hlight=campari ...and I thought the topic I am bringing forth deserves a new forefrontation. Question. Has anyone segregated the recombinations for filial generations of Campari. Answer. Yes. I have several lines of Campari descendants to the F-5 level. That is stable enough to assert some expectancies. Just today I extracted a knock off line that looks much like the F-1 Campari and I named it CAM PARIS. Pun intended. As F-5 seed, I should be able to use it in some test hybrids. I am hoping that I have some of the VVFFTN of the hybrid left over in the inbred. I will have to look at the other filial generations to select for the best lines as I am trying to duplicate the reputed flavor of the original. Meanwhile back to the Cross Talk. I have a couple of new selections out of a cross of Green Grape to an F-2 of Campari. The first one is Campptown Ladies, a nice look alike, taste alike of Campari but with the tiny seeds of Green Grape. This one is quite firm. I have F-3 seed of that one. A full sib-Paris green- (a shade of green tinged with yellow) is a Green Grape type, but of a thingytail size with extraordinary flavors and sweetness. It is rather soft like Green Grape and has larger seed than I would like. Both of them will be segregated further in the re-combination to fine tune traits that I want. But in case I don't get those traits I crossed the Paris Green with pollen from Camptown Ladies. The cross should be all red if the CL is homozygous for red flesh. The hybrid seed will be selfed next year to get F-2 seed that will shuffle the segregation even further. I would like to get a firm green thingytail tomato with small seed and great flavors and sweetness. Since Campari has long internodes suitable for greenhouse culture, I will note the growth of the assorted progenies and will send seed/plants to greenhouses for evaluation. I hope to salvage the alphabet soup of disease resistancies. I extracted seed today of Camptown Ladies crossed with Stupice. There is a local love affair with Stupice, therefore I am trying to introgress Stupice into as many kinds of tomatoes as possible in the effort to get adapted PNW tomato varieties with whatever magic Stupice offers. I now have F-3 seed of Black Gaspare, named for Gaspare Campari fame. This is a black thingytail tomato that combines Campari, Black Sea Man, Brandywine, and a chilling resistant line. This combination will be tested for chilling resistance so that ripe fruits can be placed in refrigeration without turning mushy. Yet to be found in my myriads of tomato plots, is some F-2 fruits of the cross of Black Prince, Cherokee Purple and an F-2 Campari. The F-1 had 1 1/2 to 2 inch fruits, round red, 3 locules, and productive as all get out. The plants aren't close, one is in the upper Skagit river valley and the other is in Vancouver, WA., nearly 300 miles from each other. I should not be disappointed in the flavor combos. I have been extracting seed from the F-2 fruits of Campari and Savantas, a cluster roma. The fruits are even more firm than Campari and I will be looking for jointless pedicels, and a variety of shapes. I am not sure what I have, so I am not naming any of them yet. Most of what I like has the Campari shape. I will be looking at some yellow cluster recombinants of Campari crosses as soon as I pick them. Some really tall vines are coming out of the Airy Leaf, Pineapple, Elberta Girl, Campari lines crossed to Green Grape. Yes, all in one pedigree. Most are 2 inch red fruits with green getl indicating the success of the cross. I am impressed of how the Green Grape imparts sweetness and smaller seed size. In these crosses, one doesn't see much of the ancestry of Airy Leaf, Pineapple, or Elberta Girl, just Campari and Green Grape. Maybe I will see those lines show up again in the F-2 generation. I put much effort into this treatise, but if anything ever comes out of this work, you may anticipate what it may be. Tom Wagner | ||||