Abstract
The variability of cocoa (Theobroma cacao) cytoplasmic genomes has been investigated. A total of 177 cocoa clones was surveyed for restriction fragment length polymorphism (RFLP) in chloroplast DNA and in mitochondrial DNA using two restriction endonucleases and various heterologous cytoplasmic probes. A high level of polymorphism was found for the mitochondrial genome. This study points up a structuring of the species that fits with the distinction between the Criollo and Forastero populations. In contrast to all previous analyses, a higher level of polymorphism is found among the Criollo clones while the Forastero clones form quite a homogeneous group.
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Communicated by P. M. A. Tigerstedt
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Laurent, V., Risterucci, A.M. & Lanaud, C. Chloroplast and mitochondrial DNA diversity in Theobroma cacao . Theoret. Appl. Genetics 87, 81–88 (1993). https://doi.org/10.1007/BF00223749
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DOI: https://doi.org/10.1007/BF00223749