Journal of Proteomics & Bioinformatics
Open Access
ISSN: 0974-276X
ISSN: 0974-276X
Olawuyi Odunayo Joseph
University of Ibadan, Nigeria
Posters & Accepted Abstracts: J Proteomics Bioinform
The genetic architecture and bio-fortification of tryptophan and lysine in maize resulted to protein expression in maize genome. Quality Protein maize (QPM) boosts the nutritional status of man and animal through enrichment of protein. Their roles are increasing in Agriculture to ensure food security and sustainable development of the nation. This study therefore explored the gene action involved in expression of phenotypic traits and molecular profile in QPM maize which included; ILEI-OB, ART/OB/98/SW1, ART/OB/98/SW4, ART/OB/98/SW5 and ART/OB/98/SW6. The damaging effect of Striga lutea in endemic zones of Eruwa, South-west of Nigeria had been suppressed due to tolerating genes expressed by ART/OB/98/ SW5 and ART/OB/98/SW6. The disease resistance expressed by ART/OB/98/SW6 was also confirmed in in-vitro and field assessment of its interaction with Aspergillus niger. The gene interaction and protein expression in ART/OB/98/SW6 and ART/OB/98/SW1 had significantly (p<0.05) enhanced drought tolerance and amelioration of mutagenic effects caused by ultraviolet radiation and sodium azide mutagens. Again, the early and maturing genes, morpho-agronomic and yield related traits had been expressed by QPM genotypes. The genomic evaluation of QPM using RAPD marker had also revealed mean total Polymorphic Information Contents (87%), gene diversity (0.88) and allele frequency (9.0) under varied temperature storage levels compared to other maize varieties. The genotype x treatment interaction which was highly significant (p<0.01) for most of the phenotypic traits, indicated genetic variation. Therefore, QPM gene should be introgressed for favorable alleles to ensure genetic variation, and thus be encouraged in breeding for maize improvement.
Email: olawuyiodunayo@yahoo.com