TABLE 4 in Allozyme and cytogenetic analysis in two species of Hypostomus (Siluriformes: Loricariidae) from the Paraguai River basin, Brazil: occurrence of B microchromosome and intrapopulation heterochromatic polymorphism in H. boulengeri

TABLE 4 | Comparison among cytogenetic studies in the species Hypostomus cochliodon. FN: Fundamental number; m: metacentric; sm: submetacentric; st: subtelocentric; a: acrocentric. Species/ Sampling siteDiploid NumberKaryotypeFNNOR System/ NOR pairHeterochromatin distributionReferencesH. cochliodon / Iguaçu River6412m+16sm+16st+20a108Simple/ 28-Bueno et al. (2013)H. aff. cochliodon / Esparramo stream6418m+20sm+26st/a102Multiple/ 22, 26large heterochromatic blocks in pairs: 20, 21 e 22Becker et al. (2014)H. aff. cochliodon / Pitaluga stream6418m+20sm+26st/a102Multiple/ 22, 26large heterochromatic blocks in pairs: 20, 21 e 22Becker et al. (2014)H. cochliodon / Piraputanga River6416m 20sm 28st-a100Multiple-Rubert et al. (2016)H. cochliodon / Onça stream6416m+22sm+18st+ 8a120Simple/ 29absence of large heterochromatic blocks in pairsPresent study