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Phylogenetic position of the AmericanTimarcha Latr. (Coleoptera, Chrysomelidae) based on chromosomal data

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Summary

The chromosomal analysis ofT. intricata Hald. has shown a diploid complement of 44 chromosomes, the highest number found inTimarcha and clearly different from those of the taxa previously studied. This complement favours a derivative origin of theAmericanotimarcha subgenus from a hypothetical ancestral species of 20 chromosomes. The implications of this karyotype are also discussed with some morphological, biogeographical and ecological points of view and observations.

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Authors and Affiliations

  1. Department of Genetics, Faculty of Biology, University of Barcelona, Barcelona 7, Spain

    E. Petitpierre & P. Jolivet

  2. FAO, Boîte postale 403, Bobo-Dioulasso (Haute-Volta)

    E. Petitpierre & P. Jolivet

Authors
  1. E. Petitpierre
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  2. P. Jolivet
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Additional information

Acknowledgments. We are very much indebted to Prof.P. O. Ritcher and to Mr.L. Russel of Oregon State University at Corvallis, who sent the sample ofT. intricata. Prof.A. Prevosti is also gratefully acknowledged for his suggestions in reading the manuscript.

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Petitpierre, E., Jolivet, P. Phylogenetic position of the AmericanTimarcha Latr. (Coleoptera, Chrysomelidae) based on chromosomal data. Experientia 32, 157–158 (1976). https://doi.org/10.1007/BF01937739

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  • DOI: https://doi.org/10.1007/BF01937739

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