Are the chromosomal fusions that shaped the karyotype of Tetranematichthys wallacei (Siluriformes: Auchenipteridae) a shared feature among Ageneiosini species?
Cleisson de Cristo Casarotto,
Chrystian Aparecido Grillo Haerter,
Diana Paula Perin
et al.
Abstract:The genus Tetranematichthys has only three species, and none of them have undergone cytogenetic analyses. Therefore, this study brings for the first time the analysis of Tetranematichthys wallacei, collected from the Igarapé Apaú, Guamá River basin, municipality of Castanhal, Pará State, Brazil. The diploid number found was 52 chromosomes (32m+18sm+2st, NF = 104), in both sexes, with predominantly terminal and some interstitial heterochromatin. Telomeric sequences were observed exclusively in terminal regions.… Show more
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