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AMAZ 12    Theobroma cacao

 Chalmers, W.S. (1973)
Report on a visit to Ecuador, Peru, and Brasil, March 1st-April 15th 1973.. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 31.

Derivation: r. AMAZonas.
Collected by INIAP/UWI Chalmers.
Location: R. Amazonas nr Iquitos, ECU.

(Chalmers, 1973a [CHA73A]) AMAZ 3 [CHA] to AMAZ 10 [CHA] and AMAZ 15 [CHA] were selected from a planted area of cocoa with trees showing a range of pod types from five pairs of very distinct, slightly rugose ridges to a very smooth ridgeless calabacillo type. Most had a slight bottleneck and several had a pronounced "blanco" foundation colour. Several pods showed a very characteristic slightly rough, minutely pimpled surface. Some had a very hard pod wall (AMAZ 5, 7 and 8 [CHA]). The number of seeds per pod varied between 11 and 49. All the seeds were dark purple, generally small to medium in size and, within the same pod, plump and flattish seed occured. Only AMAZ 3 [CHA] and AMAZ [15] showed any Witches broom infection. AMAZ 11and AMAZ 12 were collected from Iquitos island, where Pound collected the IMC family. Many of the trees growing in the farm had pods very similar to those of IMC 67 although AMAZ 12 had a more Amelonado shaped pod with a fairly hard shell. AMAZ 13 [CHA] and AMAZ 14 [CHA] had marked pigmentation in the flush. The peduncles were pigmented but not the stamens. The young pods were smooth and Amelonado shaped. The petioles were distinctively short, thick and without any constriction.

Notes:  Collected in 1973.
 

 Bartley, B.G.D. (1997)
Comments made by Dr. Bartley during his visit to Reading (4th - 15th August 1997).. B.G.D.Bartley. Personal Communications.

Notes:  The seed collected on this expedition was divided between Trinidad and Ecuador. At present only the data on the seedling progeny at Trinidad is available.
 

 NOTES

The seed collected on this expedition was divided between Trinidad and Ecuador. At present only the data on the seedling progeny at Trinidad is available.

 POPULATION

 Guiltinan, Mark, 2019
'Iquitos' Population
 Reference

 GENOME DATA LINKS

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 Guiltinan, Mark, 2019  Reference
BioProject: PRJNA558793   NCBI 
 
Run: SRR9938231   NCBI 
Experiment: SRX6686892
BioSample: SAMN12500392
SampleSource: Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Costa Rica, Tree_ID: P000003
Run: SRR9938273   NCBI 
Experiment: SRX6686850
BioSample: SAMN12500392
SampleSource: Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Costa Rica, Tree_ID: P000003
Run: SRR9938279   NCBI 
Experiment: SRX6686844
BioSample: SAMN12500392
SampleSource: Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Costa Rica, Tree_ID: P000003
Run: SRR9938280   NCBI 
Experiment: SRX6686843
BioSample: SAMN12500392
SampleSource: Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Costa Rica, Tree_ID: P000003

 DISEASE

 Phytophthora
Susceptible
 Guiltinan, Mark, 2019

Chalmers, W.S. (1973) Report on a visit to Ecuador, Peru, and Brasil, March 1st-April 15th 1973.. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 31.
Bartley, B.G.D. (1997) Comments made by Dr. Bartley during his visit to Reading (4th - 15th August 1997).. B.G.D.Bartley. Personal Communications.
Guiltinan, Mark (2019) Theobroma cacao Disease Resistance : Discovery and Functional Characterization of Genes Regulating Plant Immunity in Perennial Crops. NCBI