Figure 1

Fluorescent in situ hybridization using the 5S rDNA (a, e, h and k), 18S rDNA (b, f, i and l) and H3 histone genes (c, g, j and m) probes in meiotic cells. (a-d) Brasilacris gigas, (e-g) Chromacris nuptialis, (h-j) Chromacris speciosa and (k, m) Xestotrachelus robustus. Double FISH performed using a combination of 18S rDNA and H3 histone gene probes in B. gigas (d). Meiotic stages: pachytene (d), diplotene (a,b,c and k), metaphase I (c, f, j and l), anaphase I (h) and metaphase II (g, I and m). Scale bar = 5 μm.