6 research outputs found
SUPERNUMERARY CHROMOSOMES, ROBERTSONIAN REARRANGEMENT AND MULTIPLE NORS IN CORYDORAS-AENEUS (PISCES, SILURIFORMES, CALLICHTHYIDAE)
No full textKARYOTYPE AND NUCLEOLUS ORGANIZER REGIONS OF PYRRHULINA CF AUSTRALIS (PISCES, CHARACIFORMES, LEBIASINIDAE)
No full textThe mitotic chromosomes and nucleolus organizer regions (NORs) of the Upper Parana Basin fish Pyrrhulina cf. australis were studied. The karyotype (2n = 40; 6st + 34a) is characterized by the presence of four chromosome pairs with NORs, one of them with NORs in both terminal regions. Comparison of this karyotype with those of other Characiformes, revealed a strong similarity to the family Erythrinidae
BRDU REPLICATION PATTERNS DEMONSTRATING CHROMOSOME HOMEOLOGIES IN 2 FISH SPECIES, GENUS EIGENMANNIA
No full text
