Information report for LPA1
Gene Details
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Functional Descriptions
- LPA1 regulates tiller angle and leaf angle by controlling the adaxial growth of tiller node and lamina joint.
- LPA1 is localized in the nucleus and functions as an active transcriptional repressor, an activity mainly conferred by a conserved ethylene response factor-associated amphiphilic repression-like motif.
- Expression pattern analysis suggested that LPA1 influences plant architecture by affecting the gravitropism of leaf sheath pulvinus and lamina joint.
- Here, we report the cloning and characterization of the Loose Plant Architecture1 (LPA1) gene in rice, the functional ortholog of the AtIDD15/SHOOT GRAVITROPISM5 (SGR5) gene in Arabidopsis (Arabidopsis thaliana).
- LPA1 was also found to affect shoot gravitropism.
- Genetic and biochemical data indicate that LPA1 suppresses the auxin signalling that interacts with C-22-hydroxylated and 6-deoxo BRs, which regulates lamina inclination independently of OsBRI1.
- RNA sequencing analysis and qRT-PCR indicate that LPA1 influences the expression of three OsPIN genes (OsPIN1a, OsPIN1c and OsPIN3a), which suggests that auxin flux might be an important factor in LPA1-mediated lamina inclination in rice.
- Mutant LPA1 plants are hypersensitive to indole-3-acetic acid (IAA) during the lamina inclination response, which is suppressed by the brassinazole (Brz) inhibitor of C-22 hydroxylase involved in BR synthesis.
- This study explores the role of LPA1 in determining lamina inclination in rice.
- LPA1 acts as a positive regulator to suppress lamina bending.
- A strong synergic effect is detected between LPA1 and d2 (the defective mutant for catalysis of C-23-hydroxylated BRs) during IAA-mediated lamina inclination.
- Novel allelic variant of LPA1 gene associated with a significant reduction in seed phytic acid content in rice (Oryza sativa L.).
- LPA1 expressed in pre-vascular cells of leaf primordia regulates genes associated with carbohydrate metabolism and cell enlargement.
- Narrow LPA1 Metaxylems Enhance Drought Tolerance and Optimize Water Use for Grain Filling in Dwarf Rice.
- Narrow metaxylem of LPA1 exhibit leaves curling on sunny day and convey drought tolerance but reduce grain yield in mature plants.
- However, the genetic combination of LPA1 with semi-dwarf mutant (dep1-ko or d2) offer optimal water supply and drought resistance without impacting grain-filling rates.
- We performed genetic combination of LPA1 with semi-dwarf mutant to offer the optimum rice architecture for more efficient water use.
Functional Keywords
- tiller , tiller-angle , ethylene , sheath , leaf , growth , lamina , shoot , architecture , auxin , BR , seed , grain , resistance , grain-yield , drought , tolerance , grain-filling , yield , drought-tolerance , dwarf , drought-resistance , grain-filling
Literature and News
- Loose Plant Architecture1, an INDETERMINATE DOMAIN protein involved in shoot gravitropism, regulates plant architecture in rice . DOI: 10.1104/pp.112.208496 ; PMID: 23124325
- Loose Plant Architecture1 (LPA1) determines lamina joint bending by suppressing auxin signalling that interacts with C-22-hydroxylated and 6-deoxo brassinosteroids in rice . DOI: 10.1093/jxb/erw002 ; PMID: 26826218
- Overexpression of Loose Plant Architecture 1 increases planting density and resistance to sheath blight disease via activation of PIN-FORMED 1a in rice . DOI: 10.1111/pbi.13072 ; PMID: 30623557
- Novel allelic variant of Lpa1 gene associated with a significant reduction in seed phytic acid content in rice (Oryza sativa L.) . DOI: 10.1371/journal.pone.0209636 ; PMID: 30870429
- Narrow lpa1 Metaxylems Enhance Drought Tolerance and Optimize Water Use for Grain Filling in Dwarf Rice . DOI: 10.3389/fpls.2022.894545 ; PMID: 35620680
Gene Resources
- UniProt: A0A0P0VV73
- EMBL: AP014959
- AlphaFoldDB: A0A0P0VV73
- EnsemblPlants: Os03t0237250-01
- Gramene: Os03t0237250-01
- KEGG: osa:9270511
- Orthologous matrix: AVMSMAA
- InterPro: IPR013087, IPR031140, IPR036236
- PANTHER: PTHR10593, PTHR10593:SF176
- SUPFAM: SSF57667
- PROSITE: PS00028, PS50157
- Gene3D: 3.30.160.60
- OrthoDB: A0A0P0VV73
- eggNOG: KOG1721
Sequences
cDNA Sequence
- >LOC_Os03g13400.1
ACACAAACACATACACACACAATGCACCTTCACCTTTCCACCCCATAAAGCCTCCCTTGGCACCCCTATCCCACTAAGGAGCAAAAAGAGAACCAAACCAAGGCAGCTGCTGCAGAGGCAGTAGTAGTAGTAGTAGAAGTAGCTGCTGTGATCTAGCCTCTTGTGGTGGTAGCTCTAGCTCTAGAAGTGGTATTGTGGTGATAAGCTTAAGCTTAAGCTTATTAGTGATCCTCTCCCTTAAAAAGAAGAAAAGCTCCTTGCAGTTATGGCACTGGTCAAGAGCCACCACCAAATGTTGGCCTCTTCTTCCACCTCGTCCTCCTCACCCTCCTCCCAGCAGCAGCAGCCTCCACCGCCGGCGTCGAACTCCTCCAGCCTCGCCGCCGCCGCCGCCGACCAGCCCTCCCCCGCCAAGCGCAAGAGGCGCCCTCCCGGCACGCCAGACCCAGATGCGGAGGTGGTGGCGCTGTCGCCGAGGACGCTGCTGGAGTCGGACAGGTACGTGTGCGAGATCTGCGGGCAGGGGTTCCAGCGGGAGCAGAACCTGCAGATGCACCGGCGCCGGCACAAGGTGCCGTGGCGGCTGGTCAAGCGCCCCGCGGCGGCGACGGCGGCGGAGGACGGCGGCGCCGCGGGTGGCGGCGGCGGCGCCGGCGGCGGCGCGGGCGGCGGAGGGGCGCGGAAGCGCGTGTTCGTGTGCCCGGAGCCGAGCTGCCTCCACCACGACCCGGCACACGCGCTGGGCGACCTCGTCGGCATCAAGAAGCACTTCCGGCGCAAGCACGGCGGCCGGCGGCAGTGGGTGTGTGCCCGCTGCGCCAAGGGCTACGCCGTCCAGTCCGACTACAAGGCCCACCTCAAGACCTGCGGCACCCGCGGCCACTCCTGCGACTGCGGCCGCGTCTTCTCCCGAGTGGAGAGCTTCATAGAGCACCAGGATGCGTGTAACTCTGGACGTGTGCGCGGTGAGGTCGTGCCCGTGGCCACGACGCTGCCGGTCATCCGTCCCGCGGCGCTGCGGCATCATCACCATCATCCGCCGCCGCCGCCGCCTGAGCTGCAGCTCCTCCCGGCGTCCACCACGGCGCCGTTGGCCGCCGCGTTCTCGTCCAACTCCACGACCACCGGCTCCTCCTCCCACGAGCAACACGCGACGACGATGACAACGACGAAGCTGCAGCTCTCAATCGGCCCCGCCGCCGTCGTCGCCGCGGCGTCCGGCGGCGGCGGCGCCTGCGCCGCGGCGGCAGGAGGGGAGGAGGAGCAGCAGCGGGAAGAGGTGAGGCGCGCGCTGGAGGAGAAGACCGCGGCGGACGCGGCGCGGGAGCGGGCGCGCGAGGAGGCCGCGGCGGCGGAGCGCGCGCTGGAGGACGCCCGCCGCGCGCGCCACCGGGCGCGCGGGGAGCTCGAGAAGGCGCTCGCGCTGCGGGACCACGCGGCGCGCCTGATCGCGCAGGTGACCTGCCACGCGTGCCGGCAGCGCTCGCTCGCCGTGATGTCCATGGCCGCCATCGACGGCCACGGCGCGTCGGCGGTGGCGCGCGAGCACCTGAGGGGCGGCGGCGTCGGCGCCGGCATCTAGCTGATATGTACATGCATGCACATGTACAACTTGTACGTTCACGTGTGTACGTGCACGCGTATGTATGTAAAGCAAGGGGGGTTGGGTGACGACGGTGTAATTCATCTTTTTTTTTAGCCGCAAATTGATGAAGTGTACGTAGTTTCGTAGGTCG
CDS Sequence
- >LOC_Os03g13400.1
ATGGCACTGGTCAAGAGCCACCACCAAATGTTGGCCTCTTCTTCCACCTCGTCCTCCTCACCCTCCTCCCAGCAGCAGCAGCCTCCACCGCCGGCGTCGAACTCCTCCAGCCTCGCCGCCGCCGCCGCCGACCAGCCCTCCCCCGCCAAGCGCAAGAGGCGCCCTCCCGGCACGCCAGACCCAGATGCGGAGGTGGTGGCGCTGTCGCCGAGGACGCTGCTGGAGTCGGACAGGTACGTGTGCGAGATCTGCGGGCAGGGGTTCCAGCGGGAGCAGAACCTGCAGATGCACCGGCGCCGGCACAAGGTGCCGTGGCGGCTGGTCAAGCGCCCCGCGGCGGCGACGGCGGCGGAGGACGGCGGCGCCGCGGGTGGCGGCGGCGGCGCCGGCGGCGGCGCGGGCGGCGGAGGGGCGCGGAAGCGCGTGTTCGTGTGCCCGGAGCCGAGCTGCCTCCACCACGACCCGGCACACGCGCTGGGCGACCTCGTCGGCATCAAGAAGCACTTCCGGCGCAAGCACGGCGGCCGGCGGCAGTGGGTGTGTGCCCGCTGCGCCAAGGGCTACGCCGTCCAGTCCGACTACAAGGCCCACCTCAAGACCTGCGGCACCCGCGGCCACTCCTGCGACTGCGGCCGCGTCTTCTCCCGAGTGGAGAGCTTCATAGAGCACCAGGATGCGTGTAACTCTGGACGTGTGCGCGGTGAGGTCGTGCCCGTGGCCACGACGCTGCCGGTCATCCGTCCCGCGGCGCTGCGGCATCATCACCATCATCCGCCGCCGCCGCCGCCTGAGCTGCAGCTCCTCCCGGCGTCCACCACGGCGCCGTTGGCCGCCGCGTTCTCGTCCAACTCCACGACCACCGGCTCCTCCTCCCACGAGCAACACGCGACGACGATGACAACGACGAAGCTGCAGCTCTCAATCGGCCCCGCCGCCGTCGTCGCCGCGGCGTCCGGCGGCGGCGGCGCCTGCGCCGCGGCGGCAGGAGGGGAGGAGGAGCAGCAGCGGGAAGAGGTGAGGCGCGCGCTGGAGGAGAAGACCGCGGCGGACGCGGCGCGGGAGCGGGCGCGCGAGGAGGCCGCGGCGGCGGAGCGCGCGCTGGAGGACGCCCGCCGCGCGCGCCACCGGGCGCGCGGGGAGCTCGAGAAGGCGCTCGCGCTGCGGGACCACGCGGCGCGCCTGATCGCGCAGGTGACCTGCCACGCGTGCCGGCAGCGCTCGCTCGCCGTGATGTCCATGGCCGCCATCGACGGCCACGGCGCGTCGGCGGTGGCGCGCGAGCACCTGAGGGGCGGCGGCGTCGGCGCCGGCATCTAG
Protein Sequence
- >LOC_Os03g13400.1
MALVKSHHQMLASSSTSSSSPSSQQQQPPPPASNSSSLAAAAADQPSPAKRKRRPPGTPDPDAEVVALSPRTLLESDRYVCEICGQGFQREQNLQMHRRRHKVPWRLVKRPAAATAAEDGGAAGGGGGAGGGAGGGGARKRVFVCPEPSCLHHDPAHALGDLVGIKKHFRRKHGGRRQWVCARCAKGYAVQSDYKAHLKTCGTRGHSCDCGRVFSRVESFIEHQDACNSGRVRGEVVPVATTLPVIRPAALRHHHHHPPPPPPELQLLPASTTAPLAAAFSSNSTTTGSSSHEQHATTMTTTKLQLSIGPAAVVAAASGGGGACAAAAGGEEEQQREEVRRALEEKTAADAARERAREEAAAAERALEDARRARHRARGELEKALALRDHAARLIAQVTCHACRQRSLAVMSMAAIDGHGASAVAREHLRGGGVGAGI*