Abstract
The C-banding pattern is described for the chromosomes of the grasshopper Dissosteira Carolina (2n♂ = 24, ♀ = 23; XX-XO). Each of the 24 acrocentric chromosomes has a prominent C-band at the centromeric region and most chromosomes have a less prominent C-band at the distal telomeric region. Usually, one or more pairs of chromosomes has a C-band in the short arm. The C-band at the centromeric region appears to be composed of two lateral subunits in unreplicated meiotic chromosomes at anaphase II and telophase II in a number of secondary spermatocytes and in unreplicated mitotic chromosomes at anaphase in several spermatogonia. The C-band at the distal telomeric region appears similarly divided in unreplicated chromatids at anaphase I and metaphase II in several spermatocytes. The lateral subunits may be an artifact or may reflect the presence of a dual structure at C-banded regions.
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