Posters and Spotlights
Analysis of reproductive development in Arabidopsis organ boundary mutants
Start Date
30-4-2025 11:30 AM
Document Type
Event
Description
Poster Presenter: Anita Shrestha
Research Team: Anita Shrestha and Sarah Liljegren
Abstract: Organ boundaries play crucial roles in coordinating the growth and development of plant organs. Within the developing gynoecium, an organ boundary known as the carpel margin meristem gives rise to a set of reproductive tissues that include the ovules, septum, transmitting tract, style and stigma. Previous studies have shown that disruption of organ boundary gene function is associated with female sterility. For instance, loss of the redundant CUC1 and CUC2 NAC transcription factors prevents septum fusion and interferes with ovule development. Our previous studies of the STM and ATH1 homeodomain transcription factors have shown that majority of the stm ath1 double mutant flowers lack gynoecia, which suggests that STM and ATH1 have potential roles in reproductive development. Our further studies revealed that STM and ATH1 act redundantly during the development of reproductive tissues like septum and ovules, and also play roles in ovule fertilization. In future, we aim investigate the correlation between reduced seed set with respect to septum and ovule development defects in the mutants.
Relational Format
poster
Recommended Citation
Shrestha, Anita, "Analysis of reproductive development in Arabidopsis organ boundary mutants" (2025). Showcase of Research and Scholarly Activity. 54.
https://egrove.olemiss.edu/ored_showcase/2025/posters/54
Analysis of reproductive development in Arabidopsis organ boundary mutants
Poster Presenter: Anita Shrestha
Research Team: Anita Shrestha and Sarah Liljegren
Abstract: Organ boundaries play crucial roles in coordinating the growth and development of plant organs. Within the developing gynoecium, an organ boundary known as the carpel margin meristem gives rise to a set of reproductive tissues that include the ovules, septum, transmitting tract, style and stigma. Previous studies have shown that disruption of organ boundary gene function is associated with female sterility. For instance, loss of the redundant CUC1 and CUC2 NAC transcription factors prevents septum fusion and interferes with ovule development. Our previous studies of the STM and ATH1 homeodomain transcription factors have shown that majority of the stm ath1 double mutant flowers lack gynoecia, which suggests that STM and ATH1 have potential roles in reproductive development. Our further studies revealed that STM and ATH1 act redundantly during the development of reproductive tissues like septum and ovules, and also play roles in ovule fertilization. In future, we aim investigate the correlation between reduced seed set with respect to septum and ovule development defects in the mutants.