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Variability of butterfat content in cacao (Theobroma cacao L.): combination and correlation with other seed-derived traits at the International Cocoa Genebank, Trinidad

  • N. Khan (a1), L. A. Motilal (a1), D. A. Sukha (a1), F. L. Bekele (a1), A. D. Iwaro (a1), G. G. Bidaisee (a1), P. Umaharan (a2), L. H. Grierson (a3) and D. Zhang (a4)...
Abstract

Cocoa butterfat and cocoa powder are key economic products from the seeds of the cacao tree (Theobroma cacao L.). In this study, 323 accessions (comprised mainly of Upper Amazon Forasteros and Refractarios) from the International Cocoa Genebank, Trinidad were characterized for one biochemical and five morphological seed-derived traits. The data were analysed using non-parametric statistics including correlation analysis to identify promising parental candidates for future cacao breeding programmes. The Upper Amazon Forastero group had the greatest proportion of accessions with high butterfat content in cotyledons, whereas Refractario and Trinitario groups tended to contain more accessions with high butterfat content per fruit. The correlation of butterfat content of cotyledons with the dry mass of cotyledons was inconsistent in significance and direction. However, consistent significant positive correlations between butterfat content per fruit, cotyledon size and dry mass of cotyledons were found. The results suggested that butterfat content is a likely trait for independent selection but that selection for increased cotyledon size could lead to the selection of genotypes for high butterfat yield. Several promising accessions exhibited favourable levels of multiple traits and MATINA 1/7, CRU 51, AM 2/91 [POU], CRU 133, EET 58 [ECU] and POUND 18/A [POU] could be recommended as good choices for parental stock in breeding programmes for improving cacao butterfat content.

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*Corresponding author. E-mail: lamotilal@yahoo.com
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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

FL Bekele , I Bekele , DR Butler and GG Bidaisee (2006) Patterns of morphological variation in a sample of cacao (Theobroma cacao L.) germplasm from the International Cocoa Genebank, Trinidad. Genetic Resources and Crop Evolution 53(5): 933948.

D Clement , AM Risterucci , JC Motamayor , J N'Goran and C Lanaud (2003) Mapping quantitative trait loci for bean traits and ovule number in Theobroma cacao L. Genome 46: 103111.

D Clement , C Lanaud , X Sabau , O Fouet , L Le Cunff , E Ruiz , AM Risterucci , JC Glaszmann and P Piffanelli (2004) Creation of BAC genomic resources for cocoa (Theobroma cacao L.) for physical mapping of RGA containing BAC clones. Theoretical Applied Genetics 108: 16271634.

AD Iwaro , FL Bekele and DR Butler (2003) Evaluation and utilisation of cacao (Theobroma cacao L.) germplasm at the International Cocoa Genebank, Trinidad. Euphytica 130: 207221.

JL Pires , JCM Cascardo , SV Lambert and A Figueira (1998) Increasing cocoa butter yield through genetic improvement of Theobroma cacao L.: seed fat content variability, inheritance, and association with seed yield. Euphytica 103: 115121.

S Surujdeo-Maharaj , P Umaharan and DR Butler (2004) Assessment of resistance to witches'-broom disease in clonal and segregating populations of Theobroma cacao. Plant Disease 88: 797803.

J-M Thevénin , R Umaharan , S Surujdeo-Maharaj , B Latchman , C Cilas and DR Butler (2005) Relationships between black pod and witches'-broom diseases in Theobroma cacao. Phytopathology 95: 13011307.

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Plant Genetic Resources
  • ISSN: 1479-2621
  • EISSN: 1479-263X
  • URL: /core/journals/plant-genetic-resources
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