Localization of NORs in karyotypes of four Rana species V. J. Birstein OriginalPaper Pages: 149 - 154
The B-chromosomes of Locusta migratoria I. Detection of negative correlation between mean chiasma frequency and the rate of accumulation of the B's; a reanalysis of the available data about the transmission of these B-chromosomes J. CabreroE. ViserasJ. P. M. Camacho OriginalPaper Pages: 155 - 164
Complex sex chromosome system in Eigenmannia sp. (Pisces, Gymnotiformes) L. F. De Almeida ToledoH. ForestiS. De Almeida Toledo Filho OriginalPaper Pages: 165 - 169
Adriamycin-induced centric fusions in mouse chromosomes: in vivo and in vitro analysis F. N. Dulout OriginalPaper Pages: 171 - 176
Genome differentiation between two closely related species of Sideritis L. (Lamiaceae) A. M. Fernández-PeraltaJ. J. González-Aguilera OriginalPaper Pages: 177 - 183
Phylogenetic relationships in the family Resedaceae L. J. J. González-AguileraA. M. Fernández-Peralta OriginalPaper Pages: 185 - 197
Cladistical analysis of primitive G-band sequences for the karyotype of the ancestor of the Cricetidae complex of rodents B. F. KoopR. J. BakerM. D. Engstrom OriginalPaper Pages: 199 - 208
Heterosis in the flour moth, Ephestia kühniella F. LeibenguthM. Schäfer OriginalPaper Pages: 209 - 219
Genetic distance in inversion polymorphism among natural populations of Drosophila ananassae B. N. Singh OriginalPaper Pages: 221 - 224
The occurrence of G-bands in the mitotic chromosomes of the amphibian Xenopus muelleri A. D. Stock OriginalPaper Pages: 225 - 228
Cytological analysis of constitutive heterochromatin in two species of birds P. TandonI. NandaR. Raman OriginalPaper Pages: 229 - 234