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  1. Polytene chromosome banding patterns have long been used by Drosophila evolutionists to infer degree of relatedness among taxa. Recently, nucleotide sequences have preempted this traditional method. We place the ...

    Authors: Patrick M O'Grady, Richard H Baker, Celeste M Durando, William J Etges and Robert DeSalle
    Citation: BMC Evolutionary Biology 2001 1:6
  2. Species of Tetrahymena were grouped into three complexes based on morphological and life history traits: the pyriformis complex of microstomatous forms; the patula complex of microstome-macrostome transformers; a...

    Authors: Michaela C Strüder-Kypke, André-Denis G Wright, Cheryl A Jerome and Denis H Lynn
    Citation: BMC Evolutionary Biology 2001 1:5
  3. Genomic sequence analyses have shown that horizontal gene transfer occurred during the origin of eukaryotes as a consequence of symbiosis. However, details of the timing and number of symbiotic events are uncl...

    Authors: S Blair Hedges, Hsiong Chen, Sudhir Kumar, Daniel YC Wang, Amanda S Thompson and Hidemi Watanabe
    Citation: BMC Evolutionary Biology 2001 1:4
  4. The genome of invertebrates is rich in retroelements which are structurally reminiscent of the retroviruses of vertebrates. Those containing three open reading frames (ORFs), including an env-like gene, may well ...

    Authors: Christophe Terzian, Alain Pélisson and Alain Bucheton
    Citation: BMC Evolutionary Biology 2001 1:3
  5. In order to maintain populations as units of reproduction and thus enable anagenetic evolution, genetic factors must exist which prevent continuing reproductive separation or enhance reproductive contact. This...

    Authors: Hans-Rolf Gregorius and Wilfried Steiner
    Citation: BMC Evolutionary Biology 2001 1:2

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