What is somaclonal variation PPT?
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What is somaclonal variation PPT?
➢ Somaclonal variation is the variation seen in plants that have been produced by plant tissue culture. ➢ Genetic variation (genetic mutation) in plants that have been produced by plant tissue culture and can be used detected as genetic or phenotypic traits (caused by in-vitro conditions or by chimeral separation).
What is somaclonal variation PDF?
Genetic variation found to occur between. somaclones in plant tissue cultures was called somaclonal variation. This variation. includes aneuploids, sterile plants and morphological variants, sometimes involving traits. of economic importance in case of crop plants.
What is the meaning of somaclonal variation?
The term somaclonal variation is defined as genetic variation that is present in plants regenerated from tissue cultures, either uncovered or induced by a tissue culture process (Larkin and Scowcroft, 1981).
What is somaclonal variation and its application?
ADVERTISEMENTS: This article throws light upon the five applications of somaclonal variations. The five applications are: (1) Production of agronomically useful plants (2) Resistance to diseases (3) Resistance to abiotic stresses (4) Resistance to herbicides and (5) Improved seed quality.
What is the causes of somaclonal variation?
Cause of Somaclonal Variation The somaclonal variation developed due to physiological activity such as plant hormone, plant growth regulators, and culture conditions of the media. This type of variation caused when the sample expose a longer time in a particular conditions.
What is somaclonal variation BYJU’s?
A. Somaclonal variation is the variation seen in animal that have been produced by animal tissue culture. Chromosomal rearrangements are an important source of this variation.
Why is somaclonal variation important?
Somaclonal variation is a valuable tool in plant breeding, wherein variation in tissue culture regenerated plants from somatic cells can be used in the development of crops with novel traits.
Who discovered somaclonal variation?
In 1981, Larkin and Scowkraft coined a general term “somaclonal variation” for plant variants derived from any form of cell or tissue cultures.
What are the types of somaclonal variation?
There appear to be two types of somaclonal variation: heritable and epigenetic. Heritable variation is stable through the sexual cycle or repeated asexual propagation; epigenetic variation may be unstable even when asexually propagated.
What are advantages of somaclonal variation?
Advantages. The major likely benefit of somaclonal variation is plant/crop improvement. Somaclonal variation leads to the creation of additional genetic variability.
What causes somaclonal variation?
Tissue culture is an efficient method of clonal propagation; however, the resulting regenerants often has a number of somaclonal variations (Larkin and Scowcroft 1981). These somaclonal variations are mainly caused by newly generated mutations arising from tissue culture process (Sato et al. 2011b).
