Authors: Alexandre S. Cristino, Adriana Mendes do Nascimento, Luciano da Fontoura Costa and Zil�¡ Luz Paulino Sim�µes
A comparison of the most conserved sex-determining genes between the fruit fly, Drosophila melanogaster, and the honey bee, Apis mellifera, was performed with bioinformatics tools developed for computational molecular biology. An initial set of protein sequences already described in the fruit fly as participants of the sex-det.. Read More»
Authors: M. Li, H.F. Chen, Z.F. Wang and S. Zhang
Bretschneidera sinensis is an endangered species that is mainly distributed in South China. As a tertiary relict and the single species in the Bretschneideraceae family, it has a high conservation value. To investigate the influence of human disturbance on its mating system, 63 new microsatellites were developed using restriction-site-associated DNA seque.. Read More»
Authors: Y.V. Reis, K.C.C. Alevi, F.F.F. Moreira and M.T.V. Azeredo-Oliveira
The Nesotriatoma genus consists of the species N. flavida N. bruneri and N. obscura, forming the Flavida complex. Variation in the size and morphological differences intraspecific of N. flavida led to the description of N. bruneri. Two years later, the same author proposed the synonymization of N. bruneri with N. flavida. Only in 1981 the specific status .. Read More»
Authors: A.M. da Silva, M.A.R. de Freitas, A.F.L. Rios, A. Renzi, R.B. L�´bo, M.A.V. Galerani, R.A. Vila and E.S. Ramos
The CYP21 (steroid 21-hydroxylase) gene is involved in the synthesis of steroid hormones. Bov-A2 is a retroposon that is common in ruminant genomes. The promoter region of bovine CYP21 contains a short interspersed nucleotide element of Bov-A2, which overlaps a putative Sp1 binding site. We looked for RFLP/HpaII polymorphism i.. Read More»
Authors: X.G. Zhang, H. Zhang, X.L. Liang, Q. Liu, H.Y. Wang, B. Cao, J. Cao, S. Liu, Y.J. Long, W.Y. Xie and D.Z. Peng
Maternal post-traumatic stress disorder (PTSD) increases the risk of adverse neurodevelopmental outcomes in the child. Epigenetic alternations may play an essential role in the negative effects of PTSD. This study was aimed to investigate the possible epigenetic alterations of maternal PTSD, which underpins the developmental and behavioral impact. 24 preg.. Read More»
Authors: Kleber Agari Campos and Carmem Silvia Fontanetti
Triple staining with fluorochromes (DA/DAPI/CMA) and C-banding were used to characterize the composition of Pseudonannolene strinatii heterochromatin. C-banding showed C+ bands of different labeling intensity on chromosomes 1 and 2 in some cells. Fluorochrome staining revealed DAPI+ regions corresponding to the C-banding patte.. Read More»
Authors: C. Pan Y.N. You Y. Diao Z.L. Hu J.M. Chen
Amorphophallus konjac is an herbaceous tuber crop with tremendous potential for commercial development. We report the development of microsatellite primers for this important crop species. Thirteen polymorphic microsatellite markers were developed and tested in two populations of A. konjac from the Wuling Mountain Region (WL p.. Read More»
Authors: R.O. Manoel, M.L.M. Freitas, E.V. Tambarussi, J. Cambuim, M.L.T. Moraes and A.M. Sebbenn
Genipa americana is a tropical tree species that is widely distributed in the humid tropical and subtropical regions of Central and South America. This study investigated Mendelian inheritance, genetic linkage, and genotypic disequilibrium at six microsatellite loci developed for G. americana. Adult trees (188) and regenerants (163) were sampled and genot.. Read More»
Authors: A.P.S. Pe�±aloza, A.L. C�´rtes, M.T. Pozzobon, S. Santos,G.H. Rua and J.F.M. Valls
Somatic chromosome numbers were determined for 20 new germplasm accessions of Paspalum, belonging to 17 species collected in Brazil. Chromosome number is reported for the first time for P. reduncum (2n = 18), P. cinerascens (2n = 20), P. cordatum (2n = 20), P. filgueirasii (2n = 24), P. ammodes (2n = 36), P. bicilium (2n = 40).. Read More»
Authors: M.C. Guidugli, R. Ferreira-Ramos, A.C.B. de Sousa, F.W. Cidade, T.G. Marconi, M.A. Mestriner, M. Groppo and A.L. Alzate-Marin
Metrodorea nigra (Rutaceae) is an endemic Brazilian tree of great ecological importance, frequently found in the submontane regions of ombrophilous dense and semideciduous forests. This tree is useful for reforesting degraded areas and the wood can be employed in construction. We developed 12 microsatellite markers from a geno.. Read More»