Jan 10, 2020

An improved protocol for efficient transformation and regeneration of Setaria italica

Plant Cell Reports
C M SantosD C Centeno

Abstract

An efficient and improved transformation method for functional genetics studies in S. italica, being a boon for the Setaria scientific community and for crop improvement. Foxtail millet (Setaria italica) is a short life cycle C4 plant, with sequenced genome, and a potential model plant for C4 species. S. italica is also important on a global food security and healthiness context due to its importance in arid and semi-arid areas. However, despite its importance, there are just few transformation protocols directed to this species. The current protocols reached about 5.5-9% of efficiency, which do not make it a valuable model organism. Different types of explants were used in the above mentioned methods, such as immature and mature inflorescence and shoot apex. However, these techniques have many limitations, such as unavailability of explants throughout the year and a crucial, laborious and considerable time-consuming selection. Aiming a simplified and efficient methodology, we adopted dry mature seeds as explants, which are available in abundance, are constant along the year and well responsive to tissue culture, in addition to a differentiated approach that reaches on an average 19.2% transformation efficiency of S. italica. T...Continue Reading

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Mentioned in this Paper

Research
Setaria italica
Transformation, Genetic
Breeding
Plant Shoots
Genome
Setaria italica antigen
Crops, Agricultural
Healthy Volunteers
Natural Regeneration

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