Results: 8

Efficiency of biological control for fall armyworm resistant to the protein Cry1F

Braz. j. biol; 81 (1), 2021
Abstract Understanding the ecological and toxicological relationship between genetically modified cultivars (GM) and biological control agents is of great importance for discussions related to the compatability of GM cultivars and integrated management strategies for pest resistance. The present study ev...

Transient expression of a green fluorescent protein in tobacco and maize chloroplast

BACKGROUND: Maize is one of the most important crops worldwide and has been a target of nuclear-based transformation biotechnology to improve it and satisfy the food demand of the ever-growing global population. However, the maize plastid transformation has not been accomplished due to the recalcitrant c...

Identificación de marcadores moleculares (SNP) y genes candidatos asociados a la tolerancia genética al complejo mancha de asfalto en variedades nativas de maíz (Zea mays L)

Cienc. tecnol. salud; 7 (2), 2020
El complejo mancha de asfalto (CMA) en maíz (ZeamaysL.), causado por los hongos Phyllachora maydis Maubl. Y Monographella maydis Müller & Samuels, es una enfermedad de importancia económica en Guatemala, que ha causado pérdida en el rendimiento entre 30 a 50%, inclusive del 100% si las condiciones so...

Effect of Salinity Stress on Various Growth and Physiological Attributes of Two Contrasting Maize Genotypes

Abstract The response of two local maize (Zea mays L.) genotypes designated as Sahwal-2002 (salt-tolerant) and Sadaf (salt-sensitive) to salt stress was investigated under controlled growth conditions. The role of phenylalanine and seed priming under salt stress in maize with different morphological para...

Estudo proteômico de variedades de milho ( Zea mays L. ) obtidas por melhoramento clássico e por recombinação genética

O melhoramento genético clássico de sementes milho (Zea mays L.) permitiu desenvolver inúmeras variedades, incluindo o milho com qualidade proteica melhorada (Quality Protein Maize, QPM), que visava aumentar os teores proteicos e as propriedades nutricionais. Por outro lado, novas variedades comerciai...

Caracterização in silico dos genes envolvidos no metabolismo do nitrogênio em milho (Zea mays)

O N é o nutriente mineral requerido pelas plantas em maior quantidade e frequentemente limita o crescimento e produtividade. A partir de uma análise in silico foram identificados 26 genes envolvidos na assimilação do nitrogênio: quatro genes que codificam a enzima nitrato redutase (ZmNR), oito nitra...

Population structure and genetic diversity of Brazilian popcorn germplasm inferred by microsatellite markers

Electron. j. biotechnol; 18 (3), 2015
Background The genetic diversity and structure of 31 popcorn accessions of the germplasm bank of the State University of Maringá were assessed using 30 microsatellite primers. Results 127 alleles were identified from 30 evaluated loci. The number of alleles per locus ranged from two to eight. The overal...

Analysis of gene expression profiles in response to Sporisorium reilianum f. sp. zeae in maize (Zea mays L.)

Electron. j. biotechnol; 17 (5), 2014
Background Head smut of maize, which is caused by Sporisorium reilianum f. sp. zeae (Kühn), is a serious disease in maize. In order to reveal the molecular mechanism of the resistance to head smut in maize, a microarray containing ~ 14,850 probes was used to monitor the gene expression profiles between ...