Phytochrome-interacting factor-like protein OsPIL15 integrates light and gravitropism to regulate tiller angle in rice

Xie, Chuanmiao; Zhang, Ge; An, L.; Chen, Xiaoying; Fang, Rongxiang

doi:10.1007/s00425-019-03149-8

Cited by 31 publications

(27 citation statements)

References 61 publications

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“…Rice mutants in which the rostrate growth 1 (PROG1) gene is disrupted show more upright growth 18,19 . The rice phytochrome-interacting factor (PIF) OSPIL15 plays a central role in negatively regulating the tiller angle 20 .…”

Section: Introductionmentioning

confidence: 99%

Transcriptome profiles reveal that gibberellin-related genes regulate weeping traits in crape myrtle

Zheng

Zhuo

et al. 2020

Hortic Res

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Plant architecture includes vital traits that influence and benefit crops, and economically important trees. Different plant architectures provide natural beauty. Weeping ornamental plants are aesthetically appealing to people. The regulatory mechanism controlling the weeping trait is poorly understood in crape myrtle. To investigate the weeping trait mechanism, transcriptional profiling of different organs in weeping and upright crape myrtle was performed based on phenotype. Phenotypic and histological analyses demonstrated that endodermal cells were absent, and that new shoot phenotypes could be rescued by the GA3 treatment of weeping plants. The transcriptional analysis and coexpression network analysis (WGCNA) of differentially expressed genes indicated that GA synthesis and signal transduction pathways play a role in weeping traits. When the expression level of a negative element of GA signaling, LfiGRAS1, was reduced by virus-induced gene silencing (VIGS), new branches grew in infected plants in a negatively geotropic manner. An integrated analysis implied that GA had a strong influence on weeping crape myrtle by interacting with other factors. This study helps to elucidate the mechanism governing the weeping trait and can improve the efficiency of breeding in Lagerstroemia.

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Section: Introductionmentioning

confidence: 99%

Transcriptome profiles reveal that gibberellin-related genes regulate weeping traits in crape myrtle

Zheng

Zhuo

et al. 2020

Hortic Res

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“…OsPIL15 expression is negatively regulated in etiolated seedlings exposed to light (Xie et al, 2019). In this study, up-regulated expression for OsPIL11, OsPIL13 and OsPIL16 was detected, and bHLH TFs were found to be CD-response DEGs at a higher percentage than any other TF family, suggesting that bHLH TFs play important roles to propagate light signal transduction in rice.…”

Section: The Mechanisms Of Leaf Color Controlmentioning

confidence: 53%

Integrated analyses of rice dark response and leaf color control reveal links with porphyrin and chlorophyll metabolism

Wang

Chen

Zhu

et al. 2020

Preprint

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Background: Light is a key regulatory signal for rice growth and development. Under dark stress, rice shows leaf yellowing. Whole genome transcriptomic analysis will identify differentially expressed genes (DEG) in dark-treated rice seedlings and DEG-enriched metabolic pathways. Rice leaf color is an essential agronomic trait. Traditional genetic experiments have reported over a hundred of leaf color control (LCC) genes and some of them were also regulated by light signal. Thus, an integrated analysis for the two set of data will be helpful for illustration of the mechanism for both dark-response and leaf color control.Results: Transcriptome changes in response to dark treatment were surveyed by RNA-Seq analysis. About 13,115 differentially expressed genes (DEGs) were identified. One hundred and fifty rice LCC genes were collected. It was found that 102 LCC genes (68.0%) were also dark-response DEGs, which suggests an overlap between dark response and LCC networks. Fifty DEG overlapped LCC genes was associated with chloroplast development. KEGG analysis revealed enrichment of LCC genes in porphyrin and chlorophyll metabolism (PCM) (18/44, 40.9%). Of the 18 LCC genes in the PCM pathway, 15 were dark-response DEGs (83.3%). More interestingly, all of them are involved in a central PCM sub-pathway, chlorophyll biosynthesis.Conclusions: Integrated analysis for dark stress-response and leaf color control identified the correlation between the two processes and mutually supported evidences were obtained. It was found that PCM pathway, particularly chlorophyll biosynthesis process, plays important roles in rice LCC and dark stress-response. This study provides important clues for understanding the mechanisms of dark response and leaf color control and identifying additional LCC genes.

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“…Accordingly, in the current study, we proved that OsPIL15 interacts physically with PHYB in vitro and in vivo (Fig. S11), which is consistent with the result from a recent study involving a bimolecular fluorescence complementation system (Xie et al ., ). However, it was unclear how OsPIL15 and PHYB coordinately control rice grain size.…”

Section: Discussionmentioning

confidence: 97%

“…Xie et al . () revealed that the light‐induced degradation of OsPIL15 is partially dependent on PHYB in rice. In this context, there should be more OsPIL15 in the phyB mutant than in the WT control.…”

Section: Discussionmentioning

confidence: 99%

OsmiR530 acts downstream of OsPIL15 to regulate grain yield in rice

Sun

et al. 2020

New Phytologist

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Summary MicroRNAs (miRNAs) are a class of small noncoding RNAs that play important roles in plant growth and development as well as in stress responses. However, little is known about their regulatory functions affecting rice grain yield. We functionally characterized a novel miRNA in rice, OsmiR530, its target OsPL3, and its upstream regulator phytochrome‐interacting factor‐like 15 (OsPIL15). Their effects on rice yield were dissected comprehensively. We determined that OsmiR530 negatively regulates grain yield. Blocking OsmiR530 increases grain yield, whereas OsmiR530 overexpression significantly decreases grain size and panicle branching, leading to yield loss. Additionally, OsPL3, which encodes a PLUS3 domain‐containing protein, is targeted directly by OsmiR530. Knocking out OsPL3 decreases the grain yield. In‐depth analyses indicated that OsPIL15 activates OsMIR530 expression by directly binding to the G‐box elements in the promoter. Analyses of genetic variations suggested that the OsMIR530 locus has likely been subjected to artificial selection during rice breeding. The results presented herein reveal a novel OsPIL15–OsmiR530 module controlling rice grain yield, thus providing researchers with a new target for the breeding of high‐yielding rice.

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Phytochrome-interacting factor-like protein OsPIL15 integrates light and gravitropism to regulate tiller angle in rice

Cited by 31 publications

References 61 publications

Transcriptome profiles reveal that gibberellin-related genes regulate weeping traits in crape myrtle

Transcriptome profiles reveal that gibberellin-related genes regulate weeping traits in crape myrtle

Integrated analyses of rice dark response and leaf color control reveal links with porphyrin and chlorophyll metabolism

OsmiR530 acts downstream of OsPIL15 to regulate grain yield in rice

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