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A robertsonian translocation in the fresh-water triclad Dugesia lugubris: karyometric analysis and evolutionary inferences

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Abstract

Biotype E of Dugesia lugubris has a haploid complement of 4, comprising 3 acrocentrics of different length and a short chromosome; biotype F has a haploid complement of 3, with a long metacentric, an acrocentric and a short chromosome. A karyometrical analysis has shown that the metacentric chromosome of biotype F derived from a centric fusion between the acrocentrics 1 and 3 of biotype E. — The evolutionary meaning of this centric fusion is discussed.

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Authors and Affiliations

  1. Institute of Zoology, University of Pisa, Italy

    Mario Benazzi & Ileana Puccinelli

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  1. Mario Benazzi
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  2. Ileana Puccinelli
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Benazzi, M., Puccinelli, I. A robertsonian translocation in the fresh-water triclad Dugesia lugubris: karyometric analysis and evolutionary inferences. Chromosoma 40, 193–198 (1972). https://doi.org/10.1007/BF00321464

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  • DOI: https://doi.org/10.1007/BF00321464

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