Volume 82, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The nucleotide sequences of the cytochrome B gene and the antennal phenotypes were analyzed for the following triatomine species: and , which belong to the complex. These species inhabit sympatric areas from Talpa de Allende, Autlan de Navarro, and Teocuitatlan de Corona in Jalisco, Mexico. Molecular marker analysis showed that the sympatric individuals are the natural crossbred descendents of different individuals living in close proximity in these natural areas that resulted in mixed populations. The antennal phenotype results are coincident with these genetic findings, which point to the high similitude between all complex populations analyzed. These data support the hypothesis that these species are morphotypes with chromatic and genetic varieties, which preserves the possibility of natural breeding with fertile descent. In conclusion, our results strongly support the hypothesis that and are subspecies of the complex.


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  • Received : 21 May 2009
  • Accepted : 01 Oct 2009

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