Tibayrenc M, Solignac M, Cariou M L, Le Ray D, Desjeux P
C R Acad Sci III. 1984;299(7):195-8.
Genetic variability studied among 13 Trypanosoma cruzi laboratory reference stocks confirms the existence of three principal isozymic categories. As the main part of enzymic variability is now recognized, it seems possible to attribute any stock to the taxon T. cruzi with safety. Genetic parameters allow to infer two main hypotheses relative to the evolutionary origin of these categories: ancient origin (either by mitotic evolution or by speciation), or recent origin (by clone sampling among a sexual ancestral population). The possibility of a heterogeneous origin of the strains is discussed.
对13株克氏锥虫实验室参考菌株的遗传变异性研究证实了三种主要同工酶类别的存在。由于现在已认识到酶变异性的主要部分，因此似乎可以安全地将任何菌株归为克氏锥虫分类单元。遗传参数有助于推断出与这些类别的进化起源相关的两个主要假设：古老起源（通过有丝分裂进化或物种形成），或近期起源（通过有性祖先群体中的克隆抽样）。本文还讨论了菌株起源异质性的可能性。
