Question

Describe the use of microarrays in plant research. In your answer define what a Tiling Array is.

Answer 1

DNA microarrays involves transcription of many genes at once, so help researchers to study the expression of large groups of genes.

A DNA microarray has DNA sequences that are arranged on a grid which is used for transcription.

Researchers utilize microarrays in plant research such as in weed science research. Weed research includes weed biology, weed-crop competition, allelopathy, parasitic weeds, and biological control of weeds.

As DNA microarrays give information on the expression of thousands of genes in parallel that help researchers in plant–pathogen interactions.

This technology helps in the identification of new genes, their functioning and expression levels in different conditions.

Comparative analysis of the genes from a diseased and a normal cell help in identification of the biochemical constitution of the proteins that are synthesized by the diseased genes. So it help researchers to find any disease in plants.

This technology help in identification of plant varieties and their products derived.

Comparative analysis help in identification of GM plants from novel plant varieties and give profiling of this these.

An array contains tens of thousands of probes that accomplish many genetic transcription at once,

Tiling arrays is different from traditional microarrays in the nature of the probes. Tiling arrays probe used for sequences which are known to exist in a contiguous region such as region whose expression is not known.