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      Karyotype characterization of planthopper species Hysteropterum albaceticum Dlabola, 1983 and Agalmatium bilobum (Fieber, 1877) (Homoptera: Auchenorrhyncha: Issidae) using AgNOR-, C- and DAPI/CMA3 -banding techniques

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      Comparative Cytogenetics

      Pensoft Publishers

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          Abstract

          Males of Hysteropterum albaceticum Dlabola, 1983 and Agalmatium bilobum (Fieber, 1877) display a chromosomal complement of 2n = 26 + X, which is a basic one of the tribe Issini (Issidae). In the present study, silver staining, C-banding and a base specific CMA3 -and DAPI-banding were used with the aim of identifying possible cytogenetic markers and distinguishing between karyotypes with the same chromosome number and no detectable inter-species differences in karyotype structure. We characterized the species studied in terms of the distribution and molecular structure of C-heterochromatin regions and the location of nucleolus organizing regions (NORs). The species are shown to differ considerably in the amount of heterochromatin, its distribution pattern along the karyotypes and its stain ability with DAPI and CMA3.

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          Author and article information

          Journal
          Comparative Cytogenetics
          CCG
          Pensoft Publishers
          1993-078X
          1993-0771
          December 29 2009
          December 29 2009
          : 3
          : 2
          : 111-123
          Article
          10.3897/compcytogen.v3i2.18
          © 2009
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