Diallel
Potential use of molecular markers for prediction of genotypic values in hybrid maize performance
Authors: M. Balestre, R.G. Von Pinho, J.C. Souza and R.L. Oliveira
We evaluated the potential of genetic distances estimated by microsatellite markers for the prediction of the performance of single-cross maize hybrids. We also examined the potential of molecular markers for the prediction of genotypic values and the applicability of the Monte Carlo method for a correlation of genetic distanc.. Read More»
- Genet. Mol. Res. 8(4):
- vol8-4gmr644
- DOI:
- 10.4238/vol8-4gmr644
Use of elephant grass for energy production in Campos dos Goytacazes-RJ, Brazil
Authors: R.F. Daher, L.B. Souza, G.A. Gravina, J.C. Machado, H.C.C. Ramos, V.Q.R. Silva, B.R.S. Menezes, L.S.A. Schneider, M.L.F. Oliveira and R.D. Gottardo
Elephant grass is a tropical forage plant widely distributed throughout Brazil. It was first exclusively used in the livestock sector as cattle feed. The grass is characterized by its high productivity and photosynthetic capacity and is considered as an alternative source of renewable energy. Here, we estimated the general combining ability of the parents.. Read More»
- Genet. Mol. Res. 13(4):
- 2014
- DOI:
- 10.4238/2014
Efficiency of circulant diallels via mixed models in the selection of papaya genotypes resistant to foliar fungal diseases
Authors: M. Vivas, S.F. Silveira, A.P. Viana, A.T. Amaral Jr., D.L. Cardoso and M.G. Pereira
Diallel crossing methods provide information regarding the performance of genitors between themselves and their hybrid combinations. However, with a large number of parents, the number of hybrid combinations that can be obtained and evaluated become limited. One option regarding the number of parents involved is the adoption o.. Read More»
- Genet. Mol. Res. 13(3):
- 2014.July.2.9
- DOI:
- 10.4238/2014.July.2.9
Genetic parameters in parents and hybrids of circulant diallel in popcorn
Authors: R.M. Rangel1, A.T. Amaral J�ºnior1, C.A. Scapim2, S.P. Freitas J�ºnior1 and M.G. Pereira1
With the aim of estimating genetic parameters and identifying superior popcorn combinations, 10 parents were crossed in a circulant diallel and evaluated together with the 15 resulting hybrids at two locations in two growing seasons for grain yield, number of broken plants, number of partially husked ears and popping expansion. The hybrids were less sensi.. Read More»
- Genet. Mol. Res. 7(4):
Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement
Authors: R. Pereira, E.A. Souza, Q.L. Barcelos, A.F.B. Abreu and S.S. Librelon
The fungus Pseudocercospora griseola, the causal agent of angular leaf spot in the common bean (Phaseolus vulgaris L.), exhibits a broad pathogenic variability that complicates the development of resistant cultivars. For breeding programs to successfully obtain common bean cultivars with durable resistance, knowing the aggressiveness of different strains,.. Read More»
- Genet. Mol. Res. 14(2):
- 2015.May.12.7
- DOI:
- 10.4238/2015.May.12.7
Genetic analysis of drought tolerance with respect to fiber traits in upland cotton
Authors: R.A. Nasimi, I.A. Khan, M.A. Iqbal and A.A. Khan
Cotton germplasm was analyzed to investigate its potential for developing water stress tolerance in varieties in the future. Four tolerant (NIAB-78, CIM-482, BH-121, and VH-142) and four susceptible (CIM-446, FH-1000, FH-900, and FH-901) lines were identified of 50 accessions based on their seedling root length. A complete set.. Read More»
- Genet. Mol. Res. 15(4):
- gmr.15048626
- DOI:
- 10.4238/gmr.15048626
Combining ability of tropical and temperate inbred lines of popcorn
Authors: V.Q.R. da Silva, A.T. do Amaral J�ºnior, L.S.A. Gon�§alves, S.P. Freitas J�ºnior, L.S. Candido, C. Vittorazzi, L.M. Moterle, R.A. Vieira and C.A. Scapim
In Brazil, using combining ability of popcorn genotypes to achieve superior hybrids has been unsuccessful because the local genotypes are all members of the same heterotic group. To overcome this constraint, 10 lines (P1 to P10) with different adaptations to tropical or temperate edaphoclimatic environments were used to obtain.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr900
- DOI:
- 10.4238/vol9-3gmr900
Effect of generations and environments in the analysis of a partial diallel to improve bean earliness
Authors: N.M. Vale, L.D. Barili, M.H. Souza, L.M.M. Moura, J.E.S. Carneiro, P.C. Carneiro and F.L. Silva
The objective of this study was to select genitors based on F1 and F2 generations, evaluated in different environments, to obtain segregating populations for the identification of strains showing improved earliness, yield, and carioca-type grains. Nine bean strains were crossed in a partial diallel scheme (4 x 5), in which group 1 included 4 strains with .. Read More»
- Genet. Mol. Res. 14(3):
- 2015.July.27.9
- DOI:
- 10.4238/2015.July.27.9
Diallel analysis to choose parents for black bean (Phaseolus vulgaris L.) breeding
Authors: L.M. Moura, P.C.S. Carneiro, N.M. Vale, L.D. Barili, L.C. Silva, J.E.S. Carneiro and C.D. Cruz
In this study, conducted in two different seasons, we aimed to choose parents to obtain promising segregating populations for the extraction of black bean (Phaseolus vulgaris L.) lines that are superior in terms of disease resistance, plant architecture, and grain yield. Twelve parents were arranged in two groups to compose a .. Read More»
- Genet. Mol. Res. 15(3):
- gmr.15038574
- DOI:
- 10.4238/gmr.15038574
Differential interactions between Curtobacterium flaccumfaciens pv. flaccumfaciens and common bean
Authors: S.C.D. Valdo, A. Wendland, L.G. Ara�ºjo, L.C. Melo, H.S. Pereira, P.G. Melo and L.C. Faria
Bacterial wilt of common bean caused by Curtobacterium flaccumfaciens pv. flaccumfaciens is an important disease in terms of economic importance. It reduces grain yield by colonizing xylem vessels, subsequently impeding the translocation of water and nutrients to the superior plant parts. The existence of physiological races i.. Read More»
- Genet. Mol. Res. 15(4):
- gmr15048712
- DOI:
- 10.4238/gmr15048712