• Evolution of a new chromosomal lineage in a laboratory population ofDrosophila through centric fission

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    • Keywords


      Drosophila ; chromosomes; karyotypes; fission; evolution

    • Abstract


      Structural rearrangements of chromosomes have played a decisive role in the karyotypic evolution of species. It is also known that inversions, translocations, fusions, fissions, heterochromatin variations and other chromosomal changes occur as transient events in natural populations. Herein we report the occurrence of a rare event of centric fission of a metacentric chromosome in a laboratory population ofDrosophila, called Cytorace 1. This centric fission has been fixed in a sub-population of Cytorace 1, resulting in a new chromosomal lineage called Fissioncytorace-1.

    • Author Affiliations


      M T Tanuja1 N B Ramachandra1 H A Ranganath1

      1. Drosophila Stock Centre, Department of Studies in Zoology, University of Mysore, Manasagangotri, Mysore - 570 006, India
    • Dates

  • Journal of Biosciences | News

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      Posted on July 25, 2019

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