Plant Genetics
ITS2 as a molecular marker for the identification of Diatraea saccharalis and D. flavipennella and possible infection with Cotesia spp
Authors: M.S. Regueira Neto, R.P. Barros, M.A.J. Morais, V.Q. Balbino and V. Loreto
In Brazil, the species Diatraea flavipennella and D. saccharalis play an important role in the sugar and alcohol agribusiness by causing many damages in sugarcane fields. The egg, larva, pupa, and adult stages are very morphologically similar between these species, and the identification can be confused. The internal transcribed spacer 2 (ITS 2) from ribo.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039732
- DOI:
- 10.4238/gmr16039732
Diallel and prediction (REML/BLUP) for yield components in intervarietal maize hybrids
Authors: I.R. Carvalho, A.J. de Pelegrin, V.J. Szareski, M. Ferrari, T.C. da Rosa, T.S. Martins, N.L. dos Santos, M. Nardino, V.Q. de Souza, A.C. de Oliveira and L.C. da Maia
Genetic improvement is essential to achieve increments in maize (Zea mays L.) grain yield components. It may be obtained through crosses, which enable to exploit the effects of intervarietal heterosis, allelic complementarity, as well as gene actions and effects. This study estimated the components of variance and genetic para.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039734
- DOI:
- 10.4238/gmr16039734
Analysis of genetic variability of commercial melon cultivars using SSR molecular markers
Authors: N. Carvalho, F.M. Canela, P.H.S. Leite, M.A. Ferreira, V.R. Oliveira, M.F. Santos, N.O.S. Souza and G.S.C. Buso
Taking into account the scenario of melon production (Cucumis melo L.) in Brazil, it is notable the importance of the culture in the fruit market. The preference of the national market is concentrated in the fruits of the yellow type. Therefore, it is possible that the genetic base of the commercial cultivars is relatively nar.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039739
- DOI:
- 10.4238/gmr16039739
Morphological diversity of cassava accessions of the south-central mesoregion of the State of Mato Grosso, Brazil
Authors: B.W. Zago, M.A.A. Barelli, E.S.S. Hoogerheide, C.L. Corr�ªa,G.I.S. Delforno and C.J. da Silva
Genetic variability of cassava (Manihot esculenta Crantz) in Brazil is wide, being this the result of natural and cultural selection during pre- and post-domestication of the species in different environments. Given the number of species of the genus found in the region (38 of a total of 98 species), the central region of Braz.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039725
- DOI:
- 10.4238/gmr16039725
Internal amplification control of PCR for the Glu1-Dx5 allele in wheat
Authors: H.N. Heim, E.S.N. Vieira, L.R.T. Polo, N.K. Lima, G.J. Silva, G.A. Linde, N.B. Colauto and I. Schuster
One of the limiting factors in using dominant markers is the unique amplification of the target fragment. Therefore, failures in polymerase chain reaction (PCR) or non-amplifications can be interpreted as an absence of the allele. The possibility of false negatives implies in reduced efficiency in the selection process in gene.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039718
- DOI:
- 10.4238/gmr16039718
Stability of annual biomass energy production of elephant grass (Pennisetum purpureum Schum.) genotypes in the Northern region of the Rio de Janeiro State, Brazil
Authors: M.S.B. Ara�ºjo, R.F. Daher, B.R.S. Menezes, G.A. Gravina, V.B. Silva, A.T. Amaral J�ºnior, E.V. Rodrigues, B.O. Almeida and N.J. Ponciano
The objectives of this study were to estimate the stability of dry biomass production of elephant grass genotypes under an annual harvest regime, in soil-climatic conditions of the Northern region of the Rio de Janeiro State, Brazil, and to compare methodologies for stability analyses of Yates and Cochran (YC), Plaisted and Pe.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039041
- DOI:
- 10.4238/gmr16039041
Genotypic gain with simultaneous selection of production, nutrition, and culinary traits in cowpea crosses and backcrosses using mixed models
Authors: D.G. Oliveira, M.M. Rocha, K.J. Damasceno-Silva, F.V. S�¡, L.R.L. Lima, and M.D.V. Resende
The aim of this study was to estimate the genotypic gain with simultaneous selection of production, nutrition, and culinary traits in cowpea crosses and backcrosses and to compare different selection indexes. Eleven cowpea populations were evaluated in a randomized complete block design with four replications. Fourteen traits .. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039736
- DOI:
- 10.4238/gmr16039736
Stability and adaptability of soybean cultivars in Minas Gerais
Authors: I.O. Soares, A.T. Bruzi, E.V. Zambiazzi, S.R. Guilherme, M.C. Bianchi, K.B. Silva, V. Fronza and C.M. Teixeira
Genotypes x environment (G x E) interaction consists of different behavior of genotypes cultivated in different environments. This interaction occurs due to the performance variation of each genotype in different environments. To reduce the effect of the interaction in soybean crops, some studies have been reported in the lite.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039730
- DOI:
- 10.4238/gmr16039730
Evaluation of genotype x environment interactions in cotton using the method proposed by Eberhart and Russell and reaction norm models
Authors: R.S. Alves, P.E. Teodoro, F.C. Farias, F.J.C. Farias, L.P. Carvalho, J.I.S. Rodrigues, L.L. Bhering and M.D.V. Resende
Cotton produces one of the most important textile fibers of the world and has great relevance in the world economy. It is an economically important crop in Brazil, which is the world’s fifth largest producer. However, studies evaluating the genotype x environment (G x E) interactions in cotton are scarce in this country... Read More»
- Genet. Mol. Res. 16(3):
- gmr16039726
- DOI:
- 10.4238/gmr16039726
Correlation study of resistance components in the selection of Capsicum genotypes resistant to the fungus Colletotrichum gloeosporioides
Authors: A.C. Maracahipes, J.W.S. Correa, P.E. Teodoro, K.L. Ara�ºjo, M.A.A. Barelli and L.G. Neves
Anthracnose is among the major diseases of the Capsicum culture. It is caused by different species of the genus Colletotrichum, which may result in major damages to the cultivation of this genus. Studies aiming to search for cultivars resistant to diseases are essential to reduce financial and agricultural losses. The objectiv.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039720
- DOI:
- 10.4238/gmr16039720