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ELP 20 A    Theobroma cacao

 Trinidad - CRU (1995)
Cocoa Research Unit. Report for 1995. The University of the West Indies.

Derivation: ELePoussing river.
Collected by Lachenaud/Mooleedhar.
Location: R. Elepoussing, French Guiana.

Lachenaud et al (1997) [LAC97A] All are self incompatible.

Notes:  Trinidad - CRU, 1995 [CRU95A] 1995 CIRAD/CRU collecting expedition.

Location: R. Elepoussing, Haut Oyapock, French Guiana (primary forest)
Date: April 1995
Coordinates: 52.57 W, 2.19 N
Material collected: Seed
Notes: Few kms upstream of Boko Falls to Camrouze Falls, left bank
Expedition Code: 95GU
   Trinidad - CRU, 1995
   Lachenaud, P. et al., 1997

ELP 20  x Unknown

'Guiana' Population
Subgroup: 'Camopi R - Euleupousing R'   Reference


 Cornejo, O.E. et al., 2018
BioProject: PRJNA486011   NCBI   ENA FASTQ 
Project: PRJEB28591   EVA (project)   EVA (analysis) 
Library Source: Genomic
Run: SRR7774268   NCBI   ENA FASTQ 
Experiment: SRX4629556
BioSample: SAMN09934446
SampleName: ELP_20_A
SampleSource: Costa Rica, Tree_ID: Tc02198

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List received in 2018   Reference
• Accession: 22039
   - Local Name: ELP-20A
   - Year of Accession: 2006
List received in 2012   Reference
• Local Name: ELP 20-A
List received in 2012   Reference
• Local Name: ELP 20 A

Resistant, sp. P. megakarya (Leaf Disc Test).
Note: Described as Very Resistant. Mean of lesion score = 0.89. Population Euleupousing
 Paulin, D. et al., 2008

Pod Index: 32.1 (pods per kg dried beans)

Colour: dark purple
Shape: elliptical
Number: 41.0
Total Wet Weight: 47.9 g
Cotyledon Dry Weight: 0.76 g
Cotyledon Length: 21.0 mm
Cotyledon Width: 11.7 mm

Testa: 4.40 %

Shape: elliptical
Basal Constriction: strong
Apex Form: rounded
Rugosity: slight
Length: 133.0 mm
Breadth: 81.0 mm
Colour: anthocyanin absent

Colour: intense anthocyanin

Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Sepal Length: 6.58 mm
Ligule Width: 2.06 mm
Ovule Number: 43
Style Length: 1.92 mm
Pedicel Colour: reddish

Trinidad - CRU (1995) Cocoa Research Unit. Report for 1995. The University of the West Indies.
Lachenaud, P., Mooleedhar, V. & Couturier, C. (1997) Les cacaoyers spontanes de Guyane, nouvelles prospections. Plantations, Recherche, Developpment, Janvier-Fevrier, pp. 25-32.
Motamayor, J.C., Lachenaud, P., da Silva e Mota, J.W., Loor, R., Kuhn, D.N., Brown, J.S. & Schnell, R.J. (2008) Geographic and Genetic Population Differentiation of the Amazonian Chocolate Tree (Theobroma cacao L). PLoS ONE 3(10): e3311. doi:10.1371/journal.pone.0003311
Cornejo, O.E., Muh-Ching Yee, Victor Dominguez, Mary Andrews, Alexandra Sockell, Erika Strandberg, Donald Livingstone III, Conrad Stack, Alberto Romero, Pathmanathan Umaharan, Stefan Royaert, Nilesh R. Tawari, Pauline Ng, Osman Gutierrez, Wilbert Phillips, Keithanne Mockaitis, Carlos D. Bustamante & Juan C. Motamayor (2018) Population genomic analyses of the chocolate tree, Theobroma cacao L., provide insights into its domestication process. Commun Biol 1, 167
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
Philippe Lachenaud (2012) CIRAD Montpellier Clone List (Excel Spreadsheet). Data supplied to ICGD by email. Dr. Philippe Lachenaud, CIRAD Montpellier, France, January 2012.
Philippe Lachenaud (2012) F. Guiana database, CIRAD-CP. Data supplied to ICGD by email. Dr. Philippe Lachenaud, CIRAD Montpellier, France, January 2012.
Paulin, D., Ducamp, M. & Lachenaud, P. (2008) New sources of resistance to Phytophthora megakarya identified in wild cocoa tree populations of French Guiana. Crop Protection. 27: pp 1143–1147.
Frances Bekele & Gillian Bidaisee (2022) Morphological data from the International Cocoa Collection (ICG,T) maintained by the Cocoa Research Centre (CRC), Trinidad & Tobago. Unpublished data on fruit, bean, flower and flush morphology supplied as an Excel spreadsheet by Frances Bekele. Last update March 2022.