期刊
APPLICATIONS IN PLANT SCIENCES
卷 10, 期 3, 页码 -出版社
WILEY
DOI: 10.1002/aps3.11476
关键词
petal; protoplasts; Sinningia speciosa; transfection; transient expression
资金
- Taiwan's Ministry of Science and Technology [MOST 106-2313-B-002-035-MY3, MOST 110-2311-B-002-019]
This study optimized a petal protoplast transformation protocol for Sinningia speciosa and successfully localized the key transcription factor SsCYC inside the nuclei. The transient overexpression of SsCYC was consistent with gene network expectations.
Premise Transient gene expression systems are powerful tools for studying gene interactions in plant species without available or stable genetic transformation protocols. We optimized a petal protoplast transformation protocol for Sinningia speciosa, a model plant, to study the development of floral symmetry. Methods and Results A high yield of petal protoplasts was obtained using a 6-h enzyme digestion in a solution of 1.5% cellulase and 0.4% macerozyme. Modest transfection efficiency (average 41.4%) was achieved. The viability of the transfected protoplasts remained at more than 90%. A fusion of green fluorescent protein and CYCLOIDEA (SsCYC), the Teosinte branched 1/Cincinnata/Proliferating cell factor transcription factor responsible for floral symmetry, was subcellularly localized inside the nuclei of the protoplasts. Transiently overexpressing SsCYC indicates the success of this system, which resulted in the predicted increased (but nonsignificant) expression of its known target RADIALIS (SsRAD1), consistent with gene network expectations. Conclusions The transient transfection system presented herein can be effectively used to study gene-regulatory interactions in Gesneriaceae species.
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