Genome based Analysis:
        The use of molecular markers is increasingly important in breeding. Simple sequence repeats (SSRs), also known as microsatellites or short tandem repeats, are segments of DNA with a basic repeat unit of fewer than seven base pairs. SSRs are widely distributed in eukaryotic genomes and have been extensively applied in genetic studies and breeding programs. In recent years, genetic studies of tree species have been advanced by the development and application of SSR markers.