ArticleJournal of experimental botany2022
Soybean GmHY2a encodes a phytochromobilin synthase that regulates internode length and flowering time.
Article in Journal of experimental botany, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 19 citations in OpenAlex.
- A Shade Intensity Threshold Triggers Gibberellin Metabolic Reprogramming to Drive Shade Avoidance in Soybean.International journal of molecular sciences · 2026Article
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- Loss of phytochromobilin synthase activity leads to larger seeds with higher protein content in soybean.BMC plant biology · 2025Article
- Physio-morphological and molecular characterization of ethyl methanesulfonate-derived mutant population of3 Biotech · 2024Article
- A Novel 10-Base Pair Deletion in the First Exon ofInternational journal of molecular sciences · 2024Article
- Identification of potential auxin response candidate genes for soybean rapid canopy coverage through comparative evolution and expression analysis.Frontiers in plant science · 2024Article
- Identification of potential Auxin Response Candidate genes for soybean rapid canopy coverage through comparative evolution and expression analysis.bioRxiv : the preprint server for biology · 2023Article
- Potential Role of Phytochromes A and B and Cryptochrome 1 in the Adaptation ofInternational journal of molecular sciences · 2023Article
- Auxin regulation on crop: from mechanisms to opportunities in soybean breeding.Molecular breeding : new strategies in plant improvement · 2023Article
- Establishment of a novel experimental system for studying the photoperiodic response of short-day dicots using soybean 'cotyledon-only plant' as material.Frontiers in plant science · 2022Article
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
Abstract
Plant height and flowering time are important agronomic traits that directly affect soybean [Glycine max (L.) Merr.] adaptability and yield. Here, the Glycine max long internode 1 (Gmlin1) mutant was selected from an ethyl methyl sulfonate (EMS)-mutated Williams 82 population due to its long internodes and early flowering. Using bulked segregant analysis (BSA), the Gmlin1 locus was mapped to Glyma.02G304700, a homologue of the Arabidopsis HY2 gene, which encodes a phytochromobilin (PΦB) synthase involved in phytochrome chromophore synthesis. Mutation of GmHY2a results in failure of the de-etiolation response under both red and far-red light. The Gmlin1 mutant exhibits a constitutive shade avoidance response under normal light, and the mutations influence the auxin and gibberellin pathways to promote internode elongation. The Gmlin1 mutant also exhibits decreased photoperiod sensitivity. In addition, the soybean photoperiod repressor gene E1 is down-regulated in the Gmlin1 mutant, resulting in accelerated flowering. The nuclear import of phytochrome A (GmphyA) and GmphyB following light treatment is decreased in Gmlin1 protoplasts, indicating that the weak light response of the Gmlin1 mutant is caused by a decrease in functional phytochrome. Together, these results indicate that GmHY2a plays an important role in soybean phytochrome biosynthesis and provide insights into the adaptability of the soybean plant.
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