TY  - SER
AU  - Morilha Néo,D.
AU  - Moreira Filho,Orlando
AU  - Camacho,J.P.M.
TI  - Altitudinal variation for B chromosome frequencyu in the characid fish Astyanax scabripinnis
KW  - Chromosomes
KW  - Isochromosome
ER  -