Genetic control and combining ability of agronomic attributes and northern leaf blight-related attributes in popcorn

Authors: J.S. Santos, A.T. Amaral J�?ºnior, M. Vivas, G.S. Mafra, G.F. Pena,F.H.L. Silva and A.G. Guimar�?£es

The present study was conducted to investigate the genetic control and to estimate the general and specific combining abilities of popcorn for agronomic attributes and attributes related to resistance to northern leaf blight (NLB). The 56 hybrids (F1 and reciprocals), together with the eight parent lines and six controls, were.. Read More»

Genet. Mol. Res. 16(3): gmr16039772

DOI: 10.4238/gmr16039772

Genetic diversity of Bacillus sp producers of amylase isolated from the soil

Authors: A.R.E.O. Xavier, E.R. Lima, A.M.E. Oliveira, L. Cardoso, J. Santos, C.H.C. Cangussu, L.N. Leite, M.C.L. Quirino, I.G.C. J�?ºnior,D.A. Oliveira and M.A.S. Xavier

The microorganisms are the best source of extracellular enzymes since they allow an economical technology with low-resource consumption compared to animals and plants. The amylases are among the most important enzymes being the genus Bacillus one of the most investigated due to its ability to produce this enzyme. The objective.. Read More»

Genet. Mol. Res. 16(3): gmr16039771

DOI: 10.4238/gmr16039771

Indices estimated using REML/BLUP and introduction of a super-trait for the selection of progenies in popcorn

Authors: C. Vittorazzi, A.T. Amaral Junior, A.G. Guimar�?£es, A.P. Viana, F.H.L. Silva, G.F. Pena, R.F. Daher, I.F.S Gerhardt, G.H.F. Oliveira and M.G. Pereira

Selection indices commonly utilize economic weights, which become arbitrary genetic gains. In popcorn, this is even more evident due to the negative correlation between the main characteristics of economic importance - grain yield and popping expansion. As an option in the use of classical biometrics as a selection index, the .. Read More»

Genet. Mol. Res. 16(3): gmr16039769

DOI: 10.4238/gmr16039769

Anthropization as a determinant factor in the genetic structure of Copernicia prunifera (Arecaceae)

Authors: L.G. Pinheiro, K.P.T. Chagas, A.S.M. Freire, M.C. Ferreira,C.G. Fajardo and F.A. Vieira

This study uses ISSR molecular markers to characterize the demographic pattern, and spatial genetic structure (SGS) at different life stages of development (cohorts) in a natural population of Copernicia prunifera in the Rio Grande do Norte State, Brazil. All individuals were sampled and georeferenced in a 0.55-ha plot. The de.. Read More»

Genet. Mol. Res. 16(3): gmr16039768

DOI: 10.4238/gmr16039768

Analysis of melanopsin gene expression in the rabbit retina at different ages

Authors: M.M. Lira-Carrera, B.E. Guti�?©rrez-Amavizca, L.J. �?lvarez-Araujo, M. Aguirre-Ram�?­rez and J.A. P�?©rez-Le�?³n

Melanopsin is the photopigment of intrinsically photosensitive retinal ganglion cells that mediate non-visual responses to light. The aim of this study was to describe and analyze melanopsin gene expression in the rabbit retina at different ages and compare its expression with the prototypic gene of retinal ganglion cells (Thy.. Read More»

Genet. Mol. Res. 16(3): gmr16039767

DOI: 10.4238/gmr16039767

Intraspecific variability of popcorn S7 lines for phosphorus efficiency in the soil

Authors: I.F.S. Gerhardt, A.T. Amaral J�?ºnior, L.J.M. Guimar�?£es, I.A. Schwantes, A. Santos, S.H. Kamphorst, V.J. Lima, F.M. Poblete and G.O. Myers

The expansion of agriculture, coupled with the need for sustainable cropping, is one of the greatest challenges of the scientific community working on the generation of new cultivars adapted to abiotic stress conditions. The aim of this study was to evaluate the variability of popcorn lines as to responsiveness and efficiency .. Read More»

Genet. Mol. Res. 16(3):

Genetic diversity of arboreal cotton populations of the Brazilian semiarid: a remnant primary gene pool for cotton cultivars

Authors: I.P.P. de Menezes, L.V. Hoffmann, T.H. de Lima, A.R. da Silva, V.S. Lucena and P.A.V. Barroso

Mocó cotton belong to the same species as the cultivated species, Gossypium hirsutum, and cultivated forms were mainly landraces but also developed as cultivars, bearing good fiber quality and drought tolerant when cropped as a perennial species. The northeast Brazil crop system based on this cotton type is finished, wi.. Read More»

Genet. Mol. Res. 16(3): gmr16039659

DOI: 10.4238/gmr16039659

Identification of differentially expressed genes in pathways of cerebral neurotransmission of anovulatory mice

Authors: M.A. Azevedo Jr. and I.D.C.G. Silva

Polycystic ovary syndrome is the classic example of loss of functional cyclicity and anomalous feedback. In this case, the excessive extra-glandular production and conversion of androgens to estrogens are the pathophysiological basis of the chronic anovulation. The literature describes an experimental model of the polymicrocys.. Read More»

Genet. Mol. Res. 16(3): gmr16039622

DOI: 10.4238/gmr16039622