Fluorescence in situ hybridization with the probes DNAr 5S (green) and 18S (red). The results are labeled as: Astyanax lacustris (a, d, g), A. schubarti (b), hybrid A. lacustris × A. schubarti (c), A. fasciatus (e), hybrid A. lacustris × A. fasciatus (f), Hyphessobrycon anisitsi (h), and hybrid A. lacustris × H. anisitsi (i). Arrows and arrowheads indicate chromosomes bearing 18S and 5S rDNA clusters: arrows, A. lacustris; arrowheads, other species in the cross. Scale bar: 5µm.

 
 
  Part of: Goes GAG, Daniel SN, Piva LH, Yasui GS, Artoni RF, Hashimoto DT, Foresti F, Porto-Foresti F (2020) Cytogenetic markers as a tool for characterization of hybrids of Astyanax Baird & Girard, 1854 and Hyphessobrycon Eigenmann, 1907. Comparative Cytogenetics 14(2): 231-242. https://doi.org/10.3897/CompCytogen.v14i2.49513