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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An improved protocol for efficient transformation and regeneration of Setaria italica

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Santos, C. M. [1] ; Romeiro, D. [1] ; Silva, J. P. [1] ; Basso, M. F. [2] ; Molinari, H. B. C. [2] ; Centeno, D. C. [1]
Total Authors: 6
[1] Univ Fed ABC, Sao Bernardo Do Campo, SP - Brazil
[2] Embrapa Agroenergy, Genet & Biotechnol Lab, Brasilia, DF - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Plant Cell Reports; v. 39, n. 4, p. 501-510, APR 2020.
Web of Science Citations: 0

Key message 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. Thus, we propose a protocol that optimizes the transformation efficiency of this cereal crop allowing a high increase on transformation and regeneration rates. Our transformation protocol provides an interesting tool for Setaria community research as well as enables new strategies for breeding enhanced productivity in the species. (AU)

FAPESP's process: 12/23838-7 - Change in carbon balance in grasses in order to increase sugar production
Grantee:Danilo da Cruz Centeno
Support type: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants
FAPESP's process: 18/15576-9 - Carbon metabolism in plants under different perspectives: searching alternatives for crop yield enhancement
Grantee:Danilo da Cruz Centeno
Support type: Research Grants - Young Investigators Grants - Phase 2