Information report for LAX1
Gene Details
|
|
Functional Descriptions
- In addition to its role in forming lateral meristems, the wild-type LAX1 gene acts as a floral meristem identity gene which specifies the terminal spikelet meristem.
- LAX1 mRNA accumulates in two to three layers of cells in the boundary region between the initiating AM and the shoot apical meristem.
- In LAX1 mutants, the proliferation of meristematic cells is initiated but fails to progress into the formation of AM.
- In situ hybridization analysis using OSH1, a rice knotted1 (kn1) ortholog, confirmed the absence of lateral meristems in LAX1-2 panicles.
- These defects indicate that the LAX1 gene is required for the initiation/maintenance of axillary meristems in the rice panicle.
- A comparison of the defects in LAX1-1 and LAX1-2 plants suggested that the sensitivities to reduced LAX1 activity were not uniform among different types of meristems.
- The LAX1 and FRIZZY PANICLE 2 genes determine the inflorescence architecture of rice by controlling rachis-branch and spikelet development.
- In LAX1-2, which is a new and stronger allele of the previously reported lax mutant, initiation and/or maintenance of rachis-branches, lateral spikelets, and terminal spikelets was severely prevented.
- In rice (Oryza sativa), LAX PANICLE1 (LAX1) function is required for the generation of AM throughout the plant’s lifespan.
- The lax2 mutant is similar to lax panicle1 (LAX1) in that it lacks an AM in most of the lateral branching of the panicle and has a reduced number of AMs at the vegetative stage.
- The LAX1 lax2 double mutant synergistically enhances the reduced-branching phenotype, indicating the presence of multiple pathways for branching.
Functional Keywords
Literature and News
- The LAX1 and FRIZZY PANICLE 2 genes determine the inflorescence architecture of rice by controlling rachis-branch and spikelet development . DOI: 10.1006/dbio.2000.9988 ; PMID: 11237465
- Two-Step Regulation of LAX PANICLE1 Protein Accumulation in Axillary Meristem Formation in Rice . DOI: 10.1105/tpc.108.065425 ; PMID: 19346465
- LAX PANICLE2 of rice encodes a novel nuclear protein and regulates the formation of axillary meristems . DOI: 10.1105/tpc.111.088765 ; PMID: 21963665
- LAX and SPA: major regulators of shoot branching in rice . DOI: 10.1073/pnas.1932414100 ; PMID: 13130077
- Rice transcription factor MADS32 regulates floral patterning through interactions with multiple floral homeotic genes . DOI: 10.1093/jxb/eraa588 ; PMID: 33337484
Gene Resources
- UniProt: Q7XAQ6
- EMBL: AB115668, AP003252, AP008207
- AlphaFoldDB: Q7XAQ6
- EnsemblPlants: Os01t0831000-01
- Gramene: Os01t0831000-01
- KEGG: dosa:Os01g0831000
- Orthologous matrix: CRAGACE
- InterPro: IPR011598, IPR036638, IPR045843
- PANTHER: PTHR45914, PTHR45914:SF2
- SUPFAM: SSF47459
- PROSITE: PS50888
- Gene3D: 4.10.280.10
- OrthoDB: Q7XAQ6
- SWISS-MODEL: Q7XAQ6
- Conserved Domain Database: cd11454
- eggNOG: ENOG502S37F
Sequences
cDNA Sequence
- >LOC_Os01g61480.1
CAGGGGCTGAAACAAACCCAGCACATTTGTGTTTGTACGCGCAGCTAGCTAGCCACGAGCGCGGATCCATCTCCTAGCTAGCGCACCATCTATGGATCCATACCACGACTAAAACATGCATGACCCACGCGGCTTCCCCATCCACCCGCAGCCGTACCACCTCCACCCCACGGCCGGCGGCCTCGGCGAGGGCAGGATGCGGGGCGGCGGGCGGCGGCGCCCCGGCGCCAAGCTCTCCACCGACCCGCAGAGCGTGGCGGCGCGGGAGCGGCGGCACCGGATCAGCGACCGCTTCCGCGTGCTCCGCAGCCTCGTGCCGGGCGGCAGCAAGATGGACACGGTGTCCATGCTGGAGCAGGCCATCCACTACGTCAAGTTCCTCAAGGCGCAGGTCACCCTGCACCAGGCCGCGCTCGTGCAGCACGAGGAGGGCTGCCAGCACGCCGACGTCGCCGCGGCGTTCTCCGCCGCCGACGCCGATCTGGCCCTTGAGCTGAACCATCGCCACGGCGGCGCCGGCGATGATGACGCCGGGATGACGACGCTGGAGATGGCGCCGATGCAAGAGGCGGTGGGCTACGGCGACGGCCCGGCTCATCAGATGATGCAGCAAGCGCTCGATCCAGCGGGGCAGCTGATGATGGGCGGCGCTCATCAGCTGCCTCCTTTGCCTTGCTGTGTCTTCGTCCAGGAGACTGACCCCTCGTGCTACTCGGTGTGCAATGTCCACGGTGAGGAGTCTGGTGCGCAAGGATCTTATTAGCTAGCTAGTGAGACAGTGGCTTGCTTAGGTAGTTAATTTCCTTAAGTATGCTCGAATATTGGCTCTACCCACTAGCTGTCTAGCTCTACTTAGCTTACCTAGGTCGTCAACCAATATATTACCGGTTGGTCATGGTCCCTTAAATTAGCTAGACTCTTGATTTCTGTAAGAATGCATATATGCATGCATGGGGTTCTGTTGGAGCAATGCATAACAGAGCTTTGTTTTACATGCATGCGTGCATGCTTCCTAGATATCATTCTGAAATCTGAACTTGTTTGCTCGATCGCTTAATTGCTATCTCACCATTTCGGT
CDS Sequence
- >LOC_Os01g61480.1
ATGCATGACCCACGCGGCTTCCCCATCCACCCGCAGCCGTACCACCTCCACCCCACGGCCGGCGGCCTCGGCGAGGGCAGGATGCGGGGCGGCGGGCGGCGGCGCCCCGGCGCCAAGCTCTCCACCGACCCGCAGAGCGTGGCGGCGCGGGAGCGGCGGCACCGGATCAGCGACCGCTTCCGCGTGCTCCGCAGCCTCGTGCCGGGCGGCAGCAAGATGGACACGGTGTCCATGCTGGAGCAGGCCATCCACTACGTCAAGTTCCTCAAGGCGCAGGTCACCCTGCACCAGGCCGCGCTCGTGCAGCACGAGGAGGGCTGCCAGCACGCCGACGTCGCCGCGGCGTTCTCCGCCGCCGACGCCGATCTGGCCCTTGAGCTGAACCATCGCCACGGCGGCGCCGGCGATGATGACGCCGGGATGACGACGCTGGAGATGGCGCCGATGCAAGAGGCGGTGGGCTACGGCGACGGCCCGGCTCATCAGATGATGCAGCAAGCGCTCGATCCAGCGGGGCAGCTGATGATGGGCGGCGCTCATCAGCTGCCTCCTTTGCCTTGCTGTGTCTTCGTCCAGGAGACTGACCCCTCGTGCTACTCGGTGTGCAATGTCCACGGTGAGGAGTCTGGTGCGCAAGGATCTTATTAG
Protein Sequence
- >LOC_Os01g61480.1
MHDPRGFPIHPQPYHLHPTAGGLGEGRMRGGGRRRPGAKLSTDPQSVAARERRHRISDRFRVLRSLVPGGSKMDTVSMLEQAIHYVKFLKAQVTLHQAALVQHEEGCQHADVAAAFSAADADLALELNHRHGGAGDDDAGMTTLEMAPMQEAVGYGDGPAHQMMQQALDPAGQLMMGGAHQLPPLPCCVFVQETDPSCYSVCNVHGEESGAQGSY*