PbrMYB4, a R2R3-MYB protein, regulates pear stone cell lignification through activation of lignin biosynthesis genes

Pear (Pyrus bretschneideri) fruit stone cells are primarily composed of lignin and have strongly lignified cell walls. The presence of stone cells has a negative influence on fruit texture and taste, and thus the reduction of stone cell content in pear fruit is a key goal of breeding efforts. Howeve...

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