Evaluation of Antibiotic-Based Selection Methods for Camelina sativa Stable Transformants

Area of Science:

• Plant Biotechnology
• Crop Science
• Molecular Biology

Background:

• Camelina sativa is an important oilseed crop with low agronomical needs.
• Efficient molecular and genetic modification protocols are crucial for exploring Camelina's potential.
• Existing transformation protocols for Camelina often rely on fluorescence screening, while many plant transformation vectors use antibiotic resistance.

Purpose of the Study:

• To evaluate the usability of different antibiotics for Camelina transformation.
• To optimize protocols for selecting transformants across generations and for crossing lines.
• To demonstrate the application of these methods for metabolic engineering in Camelina.

Main Methods:

• Evaluation of kanamycin, hygromycin, and BASTA for selection.
• Development of optimized protocols for T1 and subsequent generation selection.
• Demonstration of crossing Camelina lines and gene overexpression using antibiotic resistance markers.

Main Results:

• Optimized protocols for antibiotic-based selection of Camelina transformants were established.
• Successful crossing of Camelina lines and selection of transformants were achieved.
• Overexpression of seco-iridoid pathway genes from Catharanthus roseus was demonstrated in Camelina.

Conclusions:

• Antibiotic resistance selection is effective for Camelina transformation using Arabidopsis-based vectors.
• Optimized protocols enhance the efficiency of genetic modification and breeding in Camelina.
• These methods support the metabolic engineering of Camelina for biotechnological applications.