Gene Details:

Functional Descriptions:

  • JAmyb overexpression in transgenic Arabidopsis improved tolerance to high-salinity stress during seed germination, seedling growth, and root elongation.
  • In this study, we identified a rice R2R3-type MYB transcription factor gene, JAmyb, as a gene whose overexpression causes tolerance to high salinity.
  • Several transcription factors involved in the jasmonate (JA)-mediated stress response are also regulated by JAmyb.
  • Role of the rice transcription factor JAmyb in abiotic stress response.
  • JAmyb has been reported to be associated with disease response.
  • In rice seedlings, JAmyb expression was induced by high-salinity and high-osmotic stresses and reactive oxygen species (ROS), suggesting that JAmyb is responsible for abiotic stress response.
  • Microarray analysis showed that the overexpression of JAmyb stimulates the expression of several defense-associated genes, some of which have been predicted to be involved in osmotic adjustment, ROS removal, and ion homeostasis.
  • Our observations suggest that JAmyb plays a role in JA-mediated abiotic stress response in addition to biotic stress response in rice.
  • After inoculation with the blast isolate Hoku1, the expression of OsJAmyb was more rapidly and strongly induced in the seedlings of blast-resistant Heikezijing compared with that in the blast-susceptible landrace Suyunuo.
  • The expression of OsJAmyb gene was detected in the root, stem, leaf, sheath, immature panicle and flowering panicle of rice, with highest expression in the leaf.
  • The OsJAmyb overexpressing transgenic lines (T3 generation) in Suyunuo showed increased resistance to blast infection with less lesion number in inoculated leaves compared with non-transgenic control plants.
  • The results indicate that OsJAmyb might be involved in the resistance to blast infection in rice.
  • In this study we identified one MYB transcription factor gene OsJAmyb from rice landrace Heikezijing, which encodes a protein with 283 amino-acid residues belonging to R2R3-type MYB transcription factor family.
  • Through combined analysis of differential expression and annotations of the predicted genes within qBBR11-4 between two sets of rice accessions selected based on haplotypes and disease phenotypes, we identified the transcription factor OsMYB21 as the candidate gene for qBBR11-4.
  • Genome-Wide Association Mapping and Gene Expression Analysis Reveal the Negative Role of OsMYB21 in Regulating Bacterial Blight Resistance in Rice.
  • The OsMYB21 overexpressing plants exhibited decreased resistance to bacterial blight, accompanied with down-regulation of several defense-related genes compared with the wild-type plants.
  • Conclusion: The results suggest that OsMYB21 negatively regulates bacterial blight resistance in rice, and this gene can be a promising target in rice breeding by using the gene editing method.

Literature:

Gene Resources:

Sequences:

cDNA Sequence
  • >LOC_Os11g45740.1
    AGCTGCACCCTTGCATCTTCTCTCTCTCTCTCTTCTTCTTCTTCTTCTTCTCCATATCTCCTACTCCTCGTGAAGATCGATCGACCATCGGCAATTTCATTCGGTAATAGTTAAGCTAAGATCAAATCAAGATTGGCGAAACGATGGAGATGGTGCTGCAGAGGACGAGCCACCACCCGGTGCCCGGGGAGCAGCAGGAGGCGGCGGCGGAGCTGTCGTCGGCTGAGCTCCGGCGAGGGCCGTGGACCGTCGATGAGGACCTCACCCTCATCAATTACATCTCTGATCACGGCGAGGGCCGCTGGAACGCACTCGCACGCGCCGCCGGTCTGAAGAGGACTGGGAAGAGCTGCCGGCTCCGGTGGCTGAACTATCTCCGGCCGGATGTGAAGCGCGGCAACTTCACCGCAGAGGAGCAGCTGCTCATCCTCGACCTCCACTCCCGATGGGGCAACCGATGGTCCAAGATAGCACAACATTTGCCTGGGAGGACCGACAACGAGATCAAGAACTACTGGAGGACCAGAGTGCAAAAGCATGCCAAGCAACTCAATTGTGATGTCAACAGCAAGAGGTTCAAGGATGCCATGAAGTACCTATGGATGCCTCGCCTTGCCGAGCGCATCCATGCCAGGGCTGGCGCTGTTGATGATAGCGGAGACTACAGCAACAACGACTTATCATGTGTATCTGGTGTAACAATGGCCACTGTTGCTAATTGTTTTGATGGCTCTCCGAGCATGGTGACTAGCTCATCTTCCGATTCGTTCACGTCGGAGTCACAAGATTTGAAGAAGATTAACTTACATGTGCATGGTGATGATGAGAAGATGAACTCTGAAGACTGGATGCAGGAGGTGGACCATGAGTTTTGGTCTACAGAGATTCAGCCTAATAATGAACAGTTTCAGGACCAACAGCTTAACGGTTGGGTGCAAGGTTTTTCTGAGGGTTTGTCCGAAACTCTATGGAGTCTAGAGGACATATGGAAGATGCAATAAATTTTACATTTACAAAGGACATATTTGTAAAATAGAATAGAGAGACATCAAGGAAGGCAAAGAGAAAAAGTTCTTTAGTCATATACTGTACGTTGAGACACTTAAGTTCTTTGCCAACTTCAATGTTTTTTTTCTTTTATTTTTGCTGCCTCTTTCGATCCCTGAAGGGGTTTTTGCCTTCTAGATGTCTAGGGGTTCAAAGAGGACCAGAGGAGATATATATGTGTTTGGATATGTTGATATATGAGCTGATATATGCCTTACTATATATATACTCCAGAATTGCACTGAGGATTACATATCCAATTCAGACATGCAAACCTTACCAGTTGCAATATTGTAAATTACATGTCCAATTTTGTAGTTTCATCTTCCTCATCATAAAAAAATTATGTTGTGTC
CDS Sequence
  • >LOC_Os11g45740.1
    ATGGAGATGGTGCTGCAGAGGACGAGCCACCACCCGGTGCCCGGGGAGCAGCAGGAGGCGGCGGCGGAGCTGTCGTCGGCTGAGCTCCGGCGAGGGCCGTGGACCGTCGATGAGGACCTCACCCTCATCAATTACATCTCTGATCACGGCGAGGGCCGCTGGAACGCACTCGCACGCGCCGCCGGTCTGAAGAGGACTGGGAAGAGCTGCCGGCTCCGGTGGCTGAACTATCTCCGGCCGGATGTGAAGCGCGGCAACTTCACCGCAGAGGAGCAGCTGCTCATCCTCGACCTCCACTCCCGATGGGGCAACCGATGGTCCAAGATAGCACAACATTTGCCTGGGAGGACCGACAACGAGATCAAGAACTACTGGAGGACCAGAGTGCAAAAGCATGCCAAGCAACTCAATTGTGATGTCAACAGCAAGAGGTTCAAGGATGCCATGAAGTACCTATGGATGCCTCGCCTTGCCGAGCGCATCCATGCCAGGGCTGGCGCTGTTGATGATAGCGGAGACTACAGCAACAACGACTTATCATGTGTATCTGGTGTAACAATGGCCACTGTTGCTAATTGTTTTGATGGCTCTCCGAGCATGGTGACTAGCTCATCTTCCGATTCGTTCACGTCGGAGTCACAAGATTTGAAGAAGATTAACTTACATGTGCATGGTGATGATGAGAAGATGAACTCTGAAGACTGGATGCAGGAGGTGGACCATGAGTTTTGGTCTACAGAGATTCAGCCTAATAATGAACAGTTTCAGGACCAACAGCTTAACGGTTGGGTGCAAGGTTTTTCTGAGGGTTTGTCCGAAACTCTATGGAGTCTAGAGGACATATGGAAGATGCAATAA
Protein Sequence
  • >LOC_Os11g45740.1
    MEMVLQRTSHHPVPGEQQEAAAELSSAELRRGPWTVDEDLTLINYISDHGEGRWNALARAAGLKRTGKSCRLRWLNYLRPDVKRGNFTAEEQLLILDLHSRWGNRWSKIAQHLPGRTDNEIKNYWRTRVQKHAKQLNCDVNSKRFKDAMKYLWMPRLAERIHARAGAVDDSGDYSNNDLSCVSGVTMATVANCFDGSPSMVTSSSSDSFTSESQDLKKINLHVHGDDEKMNSEDWMQEVDHEFWSTEIQPNNEQFQDQQLNGWVQGFSEGLSETLWSLEDIWKMQ*