Genomic DNA quantification with special reference to evolutionary hierarchy: A pilot analysis

摘要

Genomic DNA is considered as the blueprint of life and much variation in amount of DNA among various plant species are documented. However, there exists a lacuna of knowledge with regard to quantification of DNA from various plant taxa and their evolutionary relationships. Aim of the present study is to establish the significant relation between molecular evolution and evolutionary hierarchy of organisms by taking DNA quantity per cell as the measure, and this comparative study will help us to betterunderstanding of evolution. The present study assessed DNA content among lower (Cham, Funaria and Adiantum) and higher (Gnetum, Michelia, Clematis, Ocimum and Duranta) plant groups. The presence of a higher amount of DNA among members of gymnosperms andangiosperms was observed and the DNA load between gym-nosperms and angiosperms exhibited a major difference.