Zea Mays
Genetic control of the number of leaves above the ear in maize
Authors: A.I. Freire, K.O.G. Dias, L.B.V. Oliveira, R.S. Nalin, F.L. Guedes and J.C. Souza
In this study, we examined the genetic control of the number of leaves above the first ear in maize. The F2 generations and the backcrosses were obtained from 2 contrasting lines for this trait. All generations were assessed in a completely randomized block design with 2 replications. The number of leaves above the ear was counted when the plants were in .. Read More»
- Genet. Mol. Res. 14(1):
- 2015.February.13.11
- DOI:
- 10.4238/2015.February.13.11
Genetic analysis of two new quantitative trait loci for ear weight in maize inbred line Huangzao4
Authors: X.-H. Liu, Z.-P. Zheng, Z.-B. Tan, Z. Li and C. He
Ear weight is one of the most important agronomic traits considered necessary in maize (Zea mays L.) breeding projects. To determine its genetic basis, a population consisting of 239 recombinant inbred lines, derived from the cross Mo17 x Huangzao4, was used to detect quantitative trait loci (QTLs) for ear weight under two nit.. Read More»
- Genet. Mol. Res. 9(4):
- vol9-4gmr858
- DOI:
- 10.4238/vol9-4gmr858
Genome-wide identification, classification, and analysis of two-component signal system genes in maize
Authors: Z.X. Chu, Q. Ma, Y.X. Lin, X.L. Tang, Y.Q. Zhou, S.W. Zhu, J. Fan and B.J. Cheng
Cytokinins play many vital roles in plant development and physiology. In plants, cytokinin signals are sensed and transduced by the two-component signal system. This signaling cascade is typically composed of three proteins: a sensory histidine kinase, a histidine phosphotransfer protein, and a response regulator. Through a co.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.December.8.3
- DOI:
- 10.4238/2011.December.8.3
Genome-wide analysis of cyclins in maize (Zea mays)
Authors: X. Hu, X. Cheng, H. Jiang, S. Zhu, B. Cheng and Y. Xiang
Cyclins are primary regulators of the activity of cyclin-dependent kinases and play crucial roles in cell cycle progression in eukaryotes. Although extensive studies have revealed the roles of some cyclins and underlying mechanisms in plants, relatively few cyclins have been functionally analyzed in maize. We identified 59 cyc.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr861
- DOI:
- 10.4238/vol9-3gmr861
Functional molecular markers (EST-SSR) in the full-sib reciprocal recurrent selection program of maize (Zea mays L.)
Authors: K.S.C. Galv�£o, H.C.C. Ramos, P.H.A.D. Santos, G.C. Entringer, J.C.F. Vettorazzi and M.G. Pereira
This study aimed to improve grain yield in the full-sib reciprocal recurrent selection program of maize from the North Fluminense State University. In the current phase of the program, the goal is to maintain, or even increase, the genetic variability within and among populations, in order to increase heterosis of the 13th cycle of reciprocal recurrent se.. Read More»
- Genet. Mol. Res. 14(3):
- 2015.July.3.10
- DOI:
- 10.4238/2015.July.3.10
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
Genetic loci mapping associated with maize kernel number per ear based on a recombinant inbred line population grown under different nitrogen regimes
Authors: X.H. Liu, S.L. He, Z.P. Zheng, Z.B. Tan, Z. Li and C. He
Kernel number per ear (KNE) is one of the most important yield-related agronomic traits in maize (Zea mays). To clarify its genetic basis, we made a quantitative trait locus (QTL) analysis of KNE in a recombinant inbred line population derived from lines Mo17 and Huangzao4, under two nitrogen (N) regimes. Seven QTLs, on chromo.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.December.22.5
- DOI:
- 10.4238/2011.December.22.5
Comparisons of DNA marker-based genetic diversity with phenotypic estimates in maize grown in Pakistan
Authors: M.M. Shah, S.W. Hassan, K. Maqbool, I. Shahzadi and A. Pervez
We compared DNA-based genetic diversity estimates with conventional estimates by investigating agronomically important traits in maize grown in the northwestern region of Pakistan. RAPD markers were used to characterize 10 commonly cultivated maize genotypes. The same material was tested for phenotypic variation of quantitativ.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr964
- DOI:
- 10.4238/vol9-3gmr964
Multicollinearity in canonical correlation analysis in maize
Authors: B.M. Alves, A. Cargnelutti Filho and C. Burin
The objective of this study was to evaluate the effects of multicollinearity under two methods of canonical correlation analysis (with and without elimination of variables) in maize (Zea mays L.) crop. Seventy-six maize genotypes were evaluated in three experiments, conducted in a randomized block design with three replication.. Read More»
- Genet. Mol. Res. 16(1):
- gmr16019546
- DOI:
- 10.4238/gmr16019546
Direct effects on scenarios and types of path analyses in corn hybrids
Authors: M. Toebe, A. Cargnelutti Filho, L. Storck and A.D. L�ºcio
The objective of this study was to estimate the direct effects of explanatory variables on the grain yield of corn in the combinations formed by three types of hybrids x two harvests x nine scenarios of explanatory variables x two types of path analyses. Eleven explanatory variables were measured in 361, 373, and 416 single-, .. Read More»
- Genet. Mol. Res. 16(1):
- gmr16019529
- DOI:
- 10.4238/gmr16019529