This is the accepted version of the article: Duan, Liu; Ruiz-Sola, M. Águila; Couso, Ana; [et al.]. «Red and blue light differentially impact retrograde signalling and photoprotection in rice». Philo- sophical transactions of the Royal Society B, Vol. 375, issue 1801 (May 2020), art. 20190402. DOI 10.1098/rstb.2019.0402 This version is avaible at https://ddd.uab.cat/record/222100 under the terms of the license Red and blue light differentially impact retrograde signaling and photoprotection in rice Liu Duan1, M. Águila Ruiz-Sola1, Ana Couso1, Nil Veciana1, Elena Monte1,2,3 1Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, Barcelona, Spain. 2 Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain. 3Author for correspondence. Email:
[email protected] Author information: Liu Duan E- mail:
[email protected] ORCID: 0000-0003-4034-1152 M. Águila Ruiz-Sola E-mail:
[email protected] ORCID: 0000-0002-2281-6700 Ana Couso E-mail:
[email protected] Nil Veciana E-mail:
[email protected] Corresponding author: Elena Monte E-mail:
[email protected] ORCID: 0000-0002-7340-9355 1 Abstract Chloroplast-to-nucleus retrograde signaling (RS) is known to impact plant growth and development. In Arabidopsis, we and others have shown that RS affects seedling establishment by inhibiting deetiolation. In the presence of lincomycin, a chloroplast protein synthesis inhibitor that triggers RS, Arabidopsis light-grown seedlings display partial skotomorphogenesis with undeveloped plastids and closed cotyledons. In contrast, RS in monocotyledonous has been much less studied. Here, we show that emerging rice seedlings exposed to lincomycin do not accumulate chlorophyll but otherwise remain remarkably unaffected.