Plant Genetics
Genetic diversity of Schizolobium parahyba var. amazonicum (Huber ex. Ducke) Barneby, in a forest area in Brazil
Authors: A.L. Silva J�ºnior, L.C. Souza, A.G. Pereira, M.V.W. Caldeira and F.D. Miranda
Schizolobium parahyba var. amazonicum (Fabaceae) is an arboreal species, endemic to the Amazon Rainforest, popularly known as paricá. It is used on a commercial scale in the timber sector, pulp and paper production, reclamation projects in degraded and landscaped areas. However, there is no availability of genetically i.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039774
- DOI:
- 10.4238/gmr16039774
Genetic diversity in soybean genotypes using phenotypic characters and enzymatic markers
Authors: E.V. Zambiazzi, A.T. Bruzi, A.P. Sales, I.M.M. Borges, S.R. Guilherme, A.M. Zuffo, J.G. Lima, F.O. Ribeiro, A.E.S. Mendes, S.H.M Godinho and M.L.M. Carvalho
The objective of this study was to evaluate the genetic diversity of soybean cultivars by adopting phenotypic traits and enzymatic markers, the relative contribution of agronomic traits to diversity, as well as diversity between the level of technology used in soybean cultivars and genetic breeding programs in which cultivars .. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039770
- DOI:
- 10.4238/gmr16039770
Fertility restoration locus and cytoplasm types in onion
Authors: R.R. Ferreira, C.A.F. Santos and V.R. Oliveira
The objective of this study was the identification of the cytoplasmic types and the genotyping for the fertility restoration nuclear locus (Ms) in 59 onion accessions, aiming at the selection of ‘A’ and ‘B’ lines essential for the obtainment of hybrids. Three markers were used to identify the cytoplasm .. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039766
- DOI:
- 10.4238/gmr16039766
Mating system and intrapopulational genetic diversity of Copernicia prunifera (Arecaceae): a native palm from Brazilian semiarid
Authors: R.A.R. Silva, C.G. Fajardo and F.A. Vieira
The aim of this study was to investigate the mating system and genetic diversity of the palm Copernicia prunifera using inter-simple sequence repeat markers. We found that the C. prunifera has multiple inflorescences with hermaphroditic flowers and pollen viability of 62%. Outcrossing rates at the population level (N = 267) pr.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039764
- DOI:
- 10.4238/gmr16039764
Performance of grain sorghum hybrids under drought stress using GGE biplot analyses
Authors: P.S.C. Batista, C.B. Menezes, A.J. Carvalho, A.F. Portugal, E.A. Bastos, M.J. Cardoso, C.V. Santos and M.P.M. Julio Centro de
The objective of this study was to estimate the adaptability and stability of grain sorghum hybrids grown under post-flowering water stress and non-stress conditions. The trials were carried out in Nova Porteirinha-MG during the season of 2014 and 2015, and in Teresina-PI in the 2014 season. Twenty-nine-grain sorghum hybrids w.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039761
- DOI:
- 10.4238/gmr16039761
Genotypic variation and relationships among nitrogen-use efficiency and agronomic traits in tropical maize inbred lines
Authors: M.C. Rodrigues, W.M. Rezende, M.E.J. Silva, S.V. Faria, L.T. Zuffo, J.C.C. Galv�£o and R.O. DeLima
Improvement in nitrogen-use efficiency (NUE) on maize is among the best strategies to mitigate the problems of poor soil fertility in tropical conditions. The objectives of this study were: i) to quantify the genetic variability for NUE-components and agronomic traits in a set of tropical maize inbred lines; ii) to study the g.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039757
- DOI:
- 10.4238/gmr16039757
Contemporary pollen and seed dispersal in natural populations of Bertholletia excelsa (Bonpl.)
Authors: A.B. Baldoni, L.H.O. Wadt, T. Campos, V.S. Silva, V.C.R. Azevedo, L.R. Mata, A.A. Botin, N.O. Mendes, F.D. Tardin, H. Tonini, E.S.S. Hoogerheide and A.M. Sebbenn
Due to the nutritional content and commercial value of its seeds, Bertholletia excelsa is one of the most important species exploited in the Amazon region. The species is hermaphroditic, insect pollinated, and its seeds are dispersed by barochory and animals. Because the fruit set is dependent on natural pollinator activity, g.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039756
- DOI:
- 10.4238/gmr16039756
Chromosome variations and diversity of Epidendrum ibaguense Lindl. (Orchidaceae) on the Tepequ�©mâ��s Tepuy, Roraima, Brazil
Authors: S.R. N�³brega, A.L.F. Coelho, C.F. Verola, I.R. Costa, R. Vila�§a, F.J.F. Luz and W.F. Ara�ºjo
Studies addressing chromosome variations have elucidated many points regarding the taxonomy of the Orchidaceae. Epidendrum L. besides being one the largest orchid genera, present remarkable morphological, and inter- and intraspecific chromosome variations. Thus, based on a previous report on flower color variation in individua.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039754
- DOI:
- 10.4238/gmr16039754
Estimates of repeatability coefficients and the number of the optimum measure to select superior genotypes in Annona muricata L.
Authors: C.F.B. Sanch�©z, R.S. Alves, A.d.P. Garcia, P.E. Teodoro, L.A. Peixoto, L.A. Silva, L.L. Bhering and M.D.V. Resende
The aim of this study was to evaluate repeated measures over the years to estimate repeatability coefficient and the number of the optimum measure to select superior genotypes in Annona muricata L. The fruit production was evaluated over 16 years in 71 genotypes without an experimental design. The estimation of variance compon.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039753
- DOI:
- 10.4238/gmr16039753
Genetic parameters and selection of soybean lines based on selection indexes
Authors: F.G. Teixeira, O.T. Hamawaki, A.P.O. Nogueira, R.L. Hamawaki, G.L. Jorge, C.L. Hamawaki, B.Q.V. Machado and A.J.O. Santana
Defining selection criteria is important to obtain promising genotypes in a breeding program. The objective of this study was to estimate genetic parameters for agronomic traits and to perform soybean line selection using selection indices. The experiment was conducted at an experimental area located at Capim Branco farm, belo.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039750
- DOI:
- 10.4238/gmr16039750