Figure 3.

Overview of C-CMA/DAPI banding profiles in holocentric species of Rhynchospora containing different chromosome numbers and sizes. Prometaphases of R. nervosa from Carrancas with 2n = 20 (A, B), R. ciliata with 2n = 10 (C, D), and R. breviuscula with 2n = 10 (E, F), from sect. Dichromena. Note the accumulation of interstitial CMA⁺/DAPI⁺ bands in R. ciliata and the lack of DAPI⁺ signals in the chromosomes of R. breviuscula. Prometaphases in R. tenerrima (2n = 20; sect. Spermodontes) (G, H), and in R. tenuis (2n = 6; sect. Tenues) (I). While R. tenerrima showed both CMA⁺ and DAPI⁺ bands, a closely related species, R. tenuis, only has CMA⁺ signals. Prometaphase of R. corymbosa with large interstitial DAPI⁺/CMA⁺ blocks in several chromosomes, and some smaller terminal DAPI⁰/CMA⁺ ones (J, K). Metaphase of R. albobracteata, with many terminal CMA⁺ and fewer terminal DAPI⁺ bands (L, M), and prometaphase of R. globosa with 2n = 43, from Jaguariaíva (N, O), both from sect. Pluriflorae. Note that band distribution in R. globosa is more diverse that in R. albobracteata.