Diagrams comparing mechanisms that lead to fertile vs male-sterile cotton lines. In the fertile cotton line 2074B, the long non-coding RNA lncRNA67 acted as an endogenous target mimic, regulating microRNA-mediated cleavage of GhCYP724B, encoding a cytochrome P450 that promotes brassinosteroid biosynthesis. In the cytoplasmic male sterile line 2074A, GhCYP724B interacted with a unique chimeric open reading frame, resulting in male sterility.
Cytoplasmic male sterile lines are crucial for #heterosis in crop plants. Using an integrative approach, Guo et al. identify a flower bud-specific lncRNA that regulates male sterility in upland cotton. doi.org/10.1111/jipb...
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