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Chromosomes of Solenopsissaevissimaa metaphase b haploid karyotype; n = 16 c metaphase d diploid karyotype, 2n = 32 e metaphase; and f tetraploid karyotype, 4n = 64. Asterisks, grey and black arrows indicate centromeres as well as smaller and larger heterochromatic segments respectively. Scale bars: 10 µm.
