The alternative splicing of MaMYB16L might generate a self-controlled regulatory loop to regulate banana fruit ripening.
Alternative splicing of MaMYB16L regulates starch degradation in banana fruit during ripening.
MaMYB16L is a transcriptional repressor that directly binds with the promoters of many genes associated with starch degradation and MaDREB2, a positive ripening regulator, and represses their expression.
The downregulation of MaMYB16L and the upregulation of MaMYB16S, that is, a decreased ratio of active to non-active isoforms, facilitates the activation of ripening-related genes and thereby promotes fruit ripening.
