The following points highlight the top six plant promoters for genes. The promoters are: 1. Core Promoter 2. Light Responsive Promoters 3. Stress Responsive Promoters 4. Plant Hormonal Responsive Promoters 5. Sucrose Responsive Promoters 6. Low-Oxygen Responsive Promoters. 1. Core Promoter: Core promoter elements are defined as minimal promoter that contain TATA box. These are indispensable for initiation of transcription [...]
In this article we will discuss about the regulation of zein gene. The molecular biology of the zein gene system is well established in plant system. Comparison of genomic and cDNA clones have shown that they are totally devoid of intervening sequences. The regulatory signals of zein is TATA box, which is found 30 bp upstream of the transcriptional initiation [...]
The following points highlight the nine main factors affecting in vitro androgenesis. The factors are: 1. Age and Physiology 2. Stages of Pollen 3. Thermal Stress 4. Genotype 5. Chemical Treatment 6. Medium Factor 7. Anther Wall Factor 8. Microspore Density 9. Cultural Conditions. Factor # 1. Age and Physiology: The physiological conditions of the donor plant have a considerable [...]