CIRAD-CP, BIOTROP, BP5035, 34032, Montpellier cedex, France.
Theor Appl Genet. 1993 Oct;87(1-2):81-8. doi: 10.1007/BF00223749.
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.
已对可可（Theobroma cacao）细胞质基因组的变异性进行了研究。使用两种限制内切酶和各种异细胞质探针，对总共 177 个可可克隆体的叶绿体 DNA 和线粒体 DNA 进行了限制片段长度多态性（RFLP）调查。线粒体基因组的多态性水平很高。这项研究表明，该物种的结构与克里奥罗和福拉斯特罗种群的区别相吻合。与所有先前的分析不同，克里奥罗克隆体的多态性水平较高，而福拉斯特罗克隆体则形成相当同质的群体。
