Newton Freire-Maia (1918-2003) _ from Boa Esperança to the world
Francisco M. Salzano

Genetic relationships among native americans based on b-globin gene cluster haplotype frequencies
Rita de Cassia Mousinho-Ribeiro, Gabriella Pante-de-Sousa, Eduardo José Melo dos Santos and João Farias Guerreiro - pages 229

Allele frequency distributions of six hypervariable loci (D1S80, APOB, D4S43, vW1, F13A and DYS19) in two African-Brazilian communities from the Amazon region
Izaura Maria Vieira Cayres Vallinoto, Antonio Carlos Rosário Vallinoto, Cristina Maria Duarte Valente and João Farias Guerreiro - pages 235

Distribution of the CCR2-64I allele in three Brazilian ethnic groups
Angelina Xavier Acosta, Rogério Grimaldi Sampaio, Juliana Lima Spínola and Bernardo Galvão-Castro - pages 241

Twinning rate trend in a population sample from the city of São Paulo, Brazil
Glória. M.D.D. Colletto - pages 245

A rare case of Acute Lymphocytic Leukemia (ALL) presenting with double Philadelphia chromosome - relapse or secondary leukemia?
Mireille Guimarães Vaz de Campos, Maria de Lourdes L. Ferrari Chauffaille, Celso Arrais Rodrigues, Everson A. Krum and Mihoko Yamamoto pages 249

Multiple interstitial ribosomal sites (NORs) in the Brazilian squirrel Sciurus aestuans ingrami (Rodentia, Sciuridae) with 2n = 40. An overview of Sciurus cytogenetics
Valéria Fagundes, Alexandre Uarth Christoff, Renata Cecília Amaro-Ghillard, Daniel R. Scheibler and Yatiyo Yonenaga-Yassuda - pages 253

QTL affecting body weight in a candidate region of cattle chromosome 5
Mariana B.B. Machado, Maurício M. Alencar, Andréa P. Pereira, Henrique N. Oliveira, Eduardo Casas, Luis L. Coutinho and Luciana C.A. Regitano - pages 259

Genetic parameters of wool colour and skin traits in Corriedale sheep
M.V. Benavides and P. Maher - pages 267

Polymorphism analysis of the hsp70 stress gene in Broiler chickens (Gallus gallus) of different breeds
Carmen Maria Mazzi, Jesus Aparecido Ferro, Maria Inês Tiraboschi Ferro, Vicente José Maria Savino, Antonio Augusto Domingos Coelho and Marcos Macari - pages 275

Karyotype description of two Neotropical Psittacidae species: the endangered Hyacinth Macaw, Anodorhynchus hyacinthinus, and the Hawk-headed Parrot, Deroptyus accipitrinus (Psittaciformes: Aves), and its significance for conservation plans
Vitor de Oliveira Lunardi, Mercival Roberto Francisco, Guaracy Tadeu Rocha, Beatriz Goldschmidt and Pedro Manoel Galetti Junior - pages 283

Comparative cytogenetic studies of Bufo ictericus, B. paracnemis (Amphibia, Anura) and an intermediate form in sympatry
MFC Azevedo, F. Foresti, PRR Ramos and J Jim - pages 289

A growth hormone-based phylogenetic analysis of euteleostean fishes including a representative species of the Atheriniformes Order, Odontesthes argentinensis
Luis F. Marins, Jose A. Levy, Josep M. Folch and Armand Sanchez - pages 295

Population structure analysis of Pimelodus maculatus (Pisces, Siluriformes) from the Tietê and Paranapanema Rivers (Brazil)
Fernanda Simões de Almeida, Leda Maria Koelblinger Sodré and Eucleia Primo Betioli Contel - pages 301

Evolutionary dynamics of the karyotype of the wasp Trypoxylon (Trypargilum) nitidum (Hymenoptera, Sphecidae) from the Rio Doce State Park, Minas Gerais, Brazil
Ricardo Scher and Silvia das Graças Pompolo - pages 307

Clonal stability of latex yield in eleven clones of Hevea brasiliensis Muell. Arg.
K.O.Omokhafe and J.E. Alika - pages 313

Genetic relationship in Coffea species and parentage determination of interspecific hybrids using ISSR (Inter- Simple Sequence Repeat) markers
Paulo M. Ruas, Claudete F. Ruas, Leandro Rampim, Valdemar P. Carvalho, Eduardo A. Ruas and Tumoru Sera - pages 319

Assessment of genetic variability within and among coffee progenies and cultivars using RAPD markers
Sheila Recepute Silveira, Paulo Maurício Ruas, Claudete de Fátima Ruas, Tumoru Sera, Valdemar de Paula Carvalho, and Alexandre Siqueira Guedes Coelho pages 329

Isolation of (GA)n Microsatellite Sequences and Description of a Predicted MADS-box Sequence Isolated from Common Bean (Phaseolus vulgaris L.)
M.W.F. Yaish and M. Pérez de la Vega - pages 337

Predicting performance of soybean populations using genetic distances estimated with RAPD markers
Paulo Augusto Vianna Barroso, Isaias Olívio Geraldi, Maria Lúcia Carneiro Vieira, Carlos Eduardo Pulcinelli, Roland Vencovsky and Carlos Tadeu dos Santos Dias - pages 343

Microsatellite polymorphism in wheat from Brazilian cultivars; inter- and intra-varietal studies
Vitor Lopes de Abreu Lima, Homiko Abreu Seki and Franklin David Rumjanek - pages 349

Reciprocal recurrent selection effects on the genetic structure of tropical maize populations assessed at microsatellite loci
Luciana Rossini Pinto, Maria Lucia Carneiro Vieira, Claudio Lopes de Souza Jr. and Anete Pereira de Souza - pages 355

Chromosome number in Brazilian germplasm accessions of Paspalum hydrophilum, P. modestum and P. palustre (Gramineae; Paniceae)
Marisa T. Pozzobon and José F.M. Valls - pages 365

Chromosomes of Bromus auleticus Trin. ex Nees (Poaceae)
Gilmar Efrem Martinello1 and Maria Teresa Schifino-Wittmann - pages 369

Mating system in a natural population of Theobroma grandiflorum Willd. ex Spreng.) Schum., by microsatellite markers
Rafael M. Alves, Angela S. Artero, Alexandre M. Sebbenn and Antonio Figueira - pages 373

Increase in mitotic recombination in diploid cells of Aspergillus nidulans in response to ethidium bromide
Tânia C.A. Becker, Simone J.R. Chiuchetta, Francielle Baptista and Marialba A.A. de Castro-Prado - pages 381

Theodosius Dobzhansky and the development of Genetics in Brazil
Crodowaldo Pavan and Antonio Brito da Cunha - pages 387