Ubiquitous presence of beta-glucuronidase (GUS) in plants and its regulation in some model plants.

The enzyme beta-glucuronidase (GUS) is well characterized in animals and microbes. However, this enzyme is not well studied in plants and is widely assumed to be absent in them. In this study we document the ubiquitous presence of GUS in the model plants Arabidopsis thaliana, Oryza sativa, Nicotiana tabacum and Zea mays and record its expression pattern.

A microsatellite marker based study of chromosomal regions and gene effects on yield and yield components in maize.

The genetic basis of different traits and the effect of chromosomal regions on the expression of such traits is the primary interest of this study. In the present investigation, the effect of chromosomal regions on yield and its two primary components was studied, and two genetic parameters, additive effect and degree of dominance, were estimated based on a single-locus model using markers with significant effects on the traits (informative markers). Eight inbred lines from diverse geographical regions of India were crossed in all possible pairs, and F1s were evaluated for the yield and yield components in a replicated trial in two environments.