---
scientific_name: Glycine max
gene_symbols:
  - GmGA20ox_a
gene_symbol_long: Gibberellic Acid 20-Oxidase a
gene_model_pub_name: Glyma.04G244200
gene_model_full_id: glyma.Wm82.gnm4.ann1.Glyma.04G244200
confidence: 3
curators:
  - Marlene Dorneich-Hayes
  - Scott Kalberer
comments:
  - GmGA20ox_a is induced by inoculation with compatible rhizobia (e.g., Bradyrhizobium japonicum) in soybean root cortical cells during nodule primordia establishment. Mutant rhizobia (nodC-) that lack a chitin synthase gene, and thus cannot produce the Nod factor, don't induce nodulation and concomitant GA20ox_a gene expression.
  - GA20ox_a is expressed at the beginning of nodule development, with levels peaking at 12 hours after inoculation and then decreasing substantially by 48 hours post-inoculation.
  - GA20ox_a gene expression was substantially higher in newly-developing nodules than in other plant structures and is probably nodulation-specific.
phenotype_synopsis: GmGA20ox_a is a gibberellic acid biosynthesis gene that increases levels of gibberellin during early nodulation.
traits:
  - entity_name: gibberellin biosynthetic process
    entity: GO:0009686
  - entity_name: regulation of biological process involved in symbiotic interaction
    entity: GO:0043903
  - entity_name: nodulation
    entity: GO:0009877
references:
  - citation: Song, Montes-Luz et al., 2022
    doi: 10.3389/fpls.2022.820348
    pmid: 35498680
  - citation: Hayashi, Gresshoff et al., 2014
    doi: 10.1111/jipb.12201
    pmid: 24673766
  - citation: Hayashi, Reid et al., 2012
    doi: 10.1111/j.1467-7652.2012.00729.x
    pmid: 22863334
  - citation: Yang, Lan et al., 2022
    doi: 10.1111/jipb.13207
    pmid: 34962095
---
scientific_name: Glycine max
gene_symbols:
  - GmGA3ox_1a
gene_symbol_long:
  - Gibberellic Acid 3-Oxidase 1a
gene_model_pub_name: Glyma.15G012100
gene_model_full_id: glyma.Wm82.gnm4.ann1.Glyma.15G012100
confidence: 4
curators:
  - Marlene Dorneich-Hayes
  - Scott Kalberer
comments:
  - GmGA3ox_1a is induced by inoculation with compatible rhizobia (e.g., Bradyrhizobium japonicum) in soybean root cortical cells during nodule primordia establishment.
  - GA3ox_1a is expressed at the beginning of nodule development, with levels peaking at 12 hours after inoculation and then decreasing substantially by 48 hours post-inoculation.
  - GA3ox_1a expression is not exclusive to nodule development, appearing in multiple tissues, and likely serves general roles.
  - Nodulation was reduced by RNAi silencing of GA3ox_1a in transgenic soybean hairy roots.
phenotype_synopsis: GmGA3ox_1a is a gibberellic acid biosynthesis gene that increases levels of gibberellin during early nodulation.
traits:
  - entity_name: gibberellin biosynthetic process
    entity: GO:0009686
  - entity_name: regulation of biological process involved in symbiotic interaction
    entity: GO:0043903
  - entity_name: nodulation
    entity: GO:0009877
references:
  - citation: Song, Montes-Luz et al., 2022
    doi: 10.3389/fpls.2022.820348
    pmid: 35498680
  - citation: Hayashi, Gresshoff et al., 2014
    doi: 10.1111/jipb.12201
    pmid: 24673766
  - citation: Hayashi, Reid et al., 2012
    doi: 10.1111/j.1467-7652.2012.00729.x
    pmid: 22863334
  - citation: Yang, Lan et al., 2022
    doi: 10.1111/jipb.13207
    pmid: 34962095
---
scientific_name: Glycine max
gene_symbols:
  - GmGA20ox_b
gene_symbol_long: Gibberellic Acid 20-Oxidase b
gene_model_pub_name: Glyma.06G119100
gene_model_full_id: glyma.Wm82.gnm2.ann1.Glyma.06G119100
confidence: 2
curators:
  - Scott Kalberer
comments:
  - GmGA20ox_b is induced by inoculation with compatible rhizobia (e.g., Bradyrhizobium japonicum) in soybean root cortical cells during nodule primordia establishment.
phenotype_synopsis: GmGA20ox_b is a gibberellic acid biosynthesis gene that increases levels of gibberellin during early nodulation.
traits:
  - entity_name: gibberellin biosynthetic process
    entity: GO:0009686
  - entity_name: regulation of biological process involved in symbiotic interaction
    entity: GO:0043903
  - entity_name: nodulation
    entity: GO:0009877
references:
  - citation: Song, Montes-Luz et al., 2022
    doi: 10.3389/fpls.2022.820348
    pmid: 35498680