Figure 1.

Reconstructed Comparative Karyotypes in C. amara and C. rivularis (2n = 2x = 16).

(A) and (B) DAPI-stained mitotic chromosomes and comparative ideograms of C. amara (A) and C. rivularis (B). The arrow indicates the 2.5-Mb inversion on chromosome CA1, and the open circle shows the ancestral position of the relocated centromere on CR3.

(C) Identification of a translocation between chromosomes CA6 and CA8 by CCP of pachytene spreads in C. amara. Arrowheads indicate centromere regions.

Bars = 5 µm