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SLMBP21 is required for tomato AZ development

Date:2014-07-23Author:AdminSource:ICS

The research team led by Dr. Mao Long atInstitute of Crop Sciences(ICS), CAAS discovered a new MADS-box transcription factor that was responsible for tomato fruit abscission zone (AZ) development. This group used yeast two-hybrid system to find the MADS-box proteinSLMBP21can interact with two previously identified MADS-box proteinsJOINTLESS (J)andMACROCAYLYX (MC)that are also implicated in AZ development.SLMBP21was confirmed to be required for AZ development by a transgenic approach.

 

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The work further showed thatSLMBP21, J,andMCcould readily form higher order protein complexes in whichSLMBP21plays a key role as a transcription activator. BecauseSLMBP21belongs to theFBP9/23subclade of theSEPgene family, which is absent in the model plant Arabidopsis, theSLMBP21-J-MCcomplex may represent a distinct mechanism for plant AZ development. This discovery should assist scientists to generate new types of tomatoes with increased yield due to reduced loss and for improved mechanical harvesting.

 

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The results were published online on the interactional journalThe Plant Journal.
http://onlinelibrary.wiley.com/doi/10.1111/tpj.12387/abstract
The work is supported by National Science Foundation of China (NSFC).

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