RUP2 facilitates UVR8 redimerization via two interfaces

Wang, Lixia; Wang, Yidong; Chang, Hongfei; Ren, Hai; Wu, Xianping; Wen, Jia; Guan, Zeyuan; Ma, Ling; Qiu, Liang; Yan, Junjie; Zhang, Delin; Huang, Xi; Yin, Ping

doi:10.1016/j.xplc.2022.100428

Cited by 11 publications

(3 citation statements)

References 50 publications

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“…Glyma.06g156300 ( AT3G52430.1 ) was detected to be related to the function of alpha/beta-hydrolases superfamily protein [ 50 ]. Glyma.06g156400 ( AT5G63860.1 ) was detected to be related to the function of the regulator of chromosome condensation (RCC1) family protein [ 51 ]. Glyma.06g157800 ( AT1G07400.1 ) was detected to be related to the function of HSP20-like chaperones superfamily protein [ 52 ].…”

Section: Discussionmentioning

confidence: 99%

Construction of Genetic Map and QTL Mapping for Seed Size and Quality Traits in Soybean (Glycine max L.)

Gao,

Ma,

et al. 2024

IJMS

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Soybean (Glycine max L.) is the main source of vegetable protein and edible oil for humans, with an average content of about 40% crude protein and 20% crude fat. Soybean yield and quality traits are mostly quantitative traits controlled by multiple genes. The quantitative trait loci (QTL) mapping for yield and quality traits, as well as for the identification of mining-related candidate genes, is of great significance for the molecular breeding and understanding the genetic mechanism. In this study, 186 individual plants of the F2 generation derived from crosses between Changjiangchun 2 and Yushuxian 2 were selected as the mapping population to construct a molecular genetic linkage map. A genetic map containing 445 SSR markers with an average distance of 5.3 cM and a total length of 2375.6 cM was obtained. Based on constructed genetic map, 11 traits including hundred-seed weight (HSW), seed length (SL), seed width (SW), seed length-to-width ratio (SLW), oil content (OIL), protein content (PRO), oleic acid (OA), linoleic acid (LA), linolenic acid (LNA), palmitic acid (PA), stearic acid (SA) of yield and quality were detected by the multiple- d size traits and 113 QTLs related to quality were detected by the multiple QTL model (MQM) mapping method across generations F2, F2:3, F2:4, and F2:5. A total of 71 QTLs related to seed size traits and 113 QTLs related to quality traits were obtained in four generations. With those QTLs, 19 clusters for seed size traits and 20 QTL clusters for quality traits were summarized. Two promising clusters, one related to seed size traits and the other to quality traits, have been identified. The cluster associated with seed size traits spans from position 27876712 to 29009783 on Chromosome 16, while the cluster linked to quality traits spans from position 12575403 to 13875138 on Chromosome 6. Within these intervals, a reference genome of William82 was used for gene searching. A total of 36 candidate genes that may be involved in the regulation of soybean seed size and quality were screened by gene functional annotation and GO enrichment analysis. The results will lay the theoretical and technical foundation for molecularly assisted breeding in soybean.

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Section: Discussionmentioning

confidence: 99%

Construction of Genetic Map and QTL Mapping for Seed Size and Quality Traits in Soybean (Glycine max L.)

Gao,

Ma,

et al. 2024

IJMS

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“…Among the latter, REPRESSOR OF UV‐B PHOTOMORPHOGENESIS 1 ( RUP1 ) and RUP2 are transcriptionally activated and act as suppressors of the UV‐B response, as part of a negative feedback‐loop, through their direct interaction with UVR8 (Gruber et al, 2010). This leads to UVR8 re‐dimerisation, dampening the UV‐B response (Heijde and Ulm, 2013; Wang et al, 2023).…”

Section: Uv‐b Signalling Is An Important Inducer Of Photomorphogenic ...mentioning

confidence: 99%

UV‐B responses in the spotlight: Dynamic photoreceptor interplay and cell‐type specificity

Depaepe

Vanhaelewyn

Straeten

2023

Plant Cell & Environment

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Plants are constantly exposed to a multitude of external signals, including light. The information contained within the full spectrum of light is perceived by a battery of photoreceptors, each with specific and shared signalling outputs. Recently, it has become clear that UV‐B radiation is a vital component of the electromagnetic spectrum, guiding growth and being crucial for plant fitness. However, given the large overlap between UV‐B specific signalling pathways and other photoreceptors, understanding how plants can distinguish UV‐B specific signals from other light components deserves more scrutiny. With recent evidence, we propose that UV‐B signalling and other light signalling pathways occur within distinct tissues and cell‐types and that the contribution of each pathway depends on the type of response and the developmental stage of the plant. Elucidating the precise site(s) of action of each molecular player within these signalling pathways is key to fully understand how plants are able to orchestrate coordinated responses to light within the whole plant body. Focusing our efforts on the molecular study of light signal interactions to understand plant growth in natural environments in a cell‐type specific manner will be a next step in the field of photobiology.

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“…Upon UV-B photon absorption, UVR8 monomerizes and accumulates in the nucleus in a COP1-dependent manner (Kaiserli and Jenkins, 2007; Rizzini et al, 2011; Yin et al, 2016; Fang et al, 2022). The two WD40-repeat proteins REPRESSOR OF UV-B PHOTOMORPHOGENESIS 1 (RUP1) and RUP2 act as negative feedback regulators of the UVR8 photocycle by facilitating UVR8 re-dimerization and thereby repressing UV-B signalling (Gruber et al, 2010; Heijde and Ulm, 2013; Wang et al, 2023). In agreement, rup1 rup2 mutants show enhanced UV-B responsiveness and acclimation (Gruber et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Photoreceptor–induced sinapate synthesis contributes to photoprotection in Arabidopsis

Leonardelli,

Tissot,

Podolec

et al. 2024

Preprint

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Plants must balance light capture for photosynthesis with protection from potentially harmful ultraviolet radiation (UV). Photoprotection is mediated by concerted action of photoreceptors, but the underlying molecular mechanisms are not fully understood. In this study, we provide evidence that UV RESISTANCE LOCUS 8 (UVR8) UV-B-, phytochrome red-, and cryptochrome blue-light photoreceptors converge on the induction of FERULIC ACID 5-HYDROXYLASE 1 (FAH1) that encodes a key enzyme in the phenylpropanoid biosynthesis pathway, leading to the accumulation of UV-absorbing sinapate esters. FAH1 induction depends on the bZIP transcription factors ELONGATED HYPOCOTYL 5 (HY5) and HY5-HOMOLOG (HYH) that function downstream of all three photoreceptors. Noticeably, mutants with hyperactive UVR8 signalling rescue fah1 UV sensitivity. Targeted metabolite profiling suggests that this phenotypic rescue is due to the accumulation of UV-absorbing metabolites derived from precursors of sinapate synthesis, namely coumaroyl-glucose and feruloyl-glucose. Our genetic dissection of the phenylpropanoid pathway combined with metabolomic and physiological analyses show that both sinapate esters and flavonoids contribute to photoprotection with sinapates playing a major role for UV screening. Our findings indicate that photoreceptor-mediated regulation of FAH1 and subsequent accumulation of sinapate "sunscreen" compounds is a key protective mechanism to mitigate damage, preserving photosynthetic performance, and ensuring plant survival under UV.

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RUP2 facilitates UVR8 redimerization via two interfaces

Cited by 11 publications

References 50 publications

Construction of Genetic Map and QTL Mapping for Seed Size and Quality Traits in Soybean (Glycine max L.)

Construction of Genetic Map and QTL Mapping for Seed Size and Quality Traits in Soybean (Glycine max L.)

UV‐B responses in the spotlight: Dynamic photoreceptor interplay and cell‐type specificity

Photoreceptor–induced sinapate synthesis contributes to photoprotection in Arabidopsis

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