Figure 39 in High and dry: integrative taxonomy of the Andean spider genus Nerudia (Araneae: Pholcidae)

Figure 39. Nerudia ola sp. nov. (A–C) and Gertschiola macrostyla (D); male meiosis, detection of nucleolus organizer regions (NORs; red signals). Chromosomes counterstained with DAPI (blue). Panels B–D contain schemes of the sex chromosome multivalents. A, diffuse stage. Sex chromosome body and two decondensed bivalents exhibit a signal. B, metaphase I, one bivalent includes a NOR. Another NOR is at the end of a sex chromosome involved in pairing. C, metaphase I, sex chromosome multivalent collapsed. One bivalent and one end of a sex chromosome bear a NOR. D, metaphase I. One bivalent and one end of an X chromosome contains a NOR. Note the sex chromosome multivalent in the upper left corner of the panel. Symbols: arrow, NOR-bearing bivalent; arrowhead, sex chromosome body (A), sex chromosome multivalent (B, D) or particular sex chromosomes (C, numbered). Abbreviations: m, sex chromosome multivalent; SCB, sex chromosome body; X, X chromosome; Y, Y chromosome. Scale lines: 10 µm.