Which organism is known as Drosophila of Plant kingdom?

Arabidopsis thaliana is known as Drosophila of the Plant kingdom. It is a small angiosperm, a dicot weed. Due to its small size, less number of chromosomes, faster growth and self-fertilization, it is used as a model organism for research in plant biology, genetics and molecular biology.

Many mutant varieties have also been identified.

It is the first plant, whose whole genome was sequenced. It is small in size around 20-25 cm tall. It belongs to the mustard family. Let’s know more about Arabidopsis thaliana key facts.

Key Facts About Arabidopsis thaliana

  • Common name – Mouse-ear cress or thale cress
  • Classification –

    Kingdom – Plantae

    Subkingdom – Tracheobionta

    Superdivision – Spermatophyta

    Division – Magnoliophyta

    Class – Magnoliopsida

    Subclass – Dilleniidae

    Order – Capparales

    Family – Brassicaceae – Mustard family

  • Number of Chromosomes – It contains 5 pairs of chromosomes (n = 5). The genome consists of ~ 135 Mbp of DNA, which is similar to Drosophila.
  • Number of genes in Arabidopsis thaliana – The genome codes for ~27000 genes, which code for around 35000 proteins.
  • Life Cycle – 6 to 8 weeks
  • It is also easier to make transgenic plants by using Agrobacterium tumefaciens as a vector.

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