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An example of a useful somaclonal variation is Shikonin dye production Short crop duration in sugarcane Male sterility White rust resistance in crucifers

An example of a useful somaclonal variation is
  1. Shikonin dye production
  2. Short crop duration in sugarcane
  3. Male sterility
  4. White rust resistance in crucifers

Grade:12th pass

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
6 years ago
The correct option is 2.
Somaclonal variation is the variation seen in plants that have been produced by plant tissue culture. Chromosomal rearrangements are an important source of this variation.

Somaclonal variation is not restricted to, but is particularly common in, plants regenerated from callus. The variations can be genotypic or phenotypic, which in the latter case can be either genetic or epigenetic in origin. Typical genetic alterations are: changes in chromosome numbers (polyploidy and aneuploidy), chromosome structure (translocations, deletions, insertions and duplications) and DNA sequence (base mutations). A typical epigenetics-related event would be gene methylation.

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