Fig. 2 in Chromosomal analyses in Megalonema platanum (Siluriformes: Pimelodidae), an endangered species from South American rivers

Fig. 2. Somatic metaphases of Megalonema platanum submitted to treatment with AgNO 3 (a and b); FISH with 18S rDNA probe (c) and CMA 3 (d). Arrows indicate the NOR bearing chromosomes. The arrowheads indicate the secondary constriction. Detail in (d) shows the chromosome pair CMA positive.