C-banded male karyotypes. A, B Melolontha melolontha C, D Macraspis tristis. At contrast with the high variability of autosomes, there is a remarquable stability of the amount of C-banded heterochromatin on the X (average in A, B and amplified in C, D).

 
 
  Part of: Dutrillaux A-M, Dutrillaux B (2019) Different behaviour of C-banded peri-centromeric heterochromatin between sex chromosomes and autosomes in Polyphagan beetles. Comparative Cytogenetics 13(2): 179-192. https://doi.org/10.3897/CompCytogen.v13i2.34746