Shedding light on shade-avoidance: <i>SlPIF8a</i> plays a pivotal role in the tomato shade response

Sun-loving plants exhibit remarkable phenotypic plasticity through their shade-avoidance response.This 8 response triggers morphological and physiological changes, such as stem and petiole elongation, that enable 9 the plant to escape sub-optimal light-limiting conditions and maximize exposure to the sunlight required for 10 photosynthesis.In the shade, the proportion of far-red light increases, and the ratio of red to far-red light