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Agricultural industry

Molecular Identification of Sugarcane Glyceraldehyde-3-phosphate Dehydrogenases Reveals Roles in Scmv Infection

Strategic Insights

— 1 min read

Researchers at Fujian Agricultural and Forestry University have made a groundbreaking discovery in the study of sugarcane glyceraldehyde-3-phosphate dehydrogenases (GAPDH), which play a crucial role in plant growth, development, and plant-pathogen interactions. The team identified 24, 75, and 91 GAPDH genes in Saccharum spontaneum, sugarcane cultivar R570, and XTT22, respectively. Their findings suggest that these genes are involved in stress and hormone response, and their expression levels are differentially regulated upon SCMV infection.

Key Takeaways:

  • The study identified 24, 75, and 91 GAPDH genes in Saccharum spontaneum, sugarcane cultivar R570, and XTT22, respectively.
  • The GAPDH genes were divided into four groups: the GAPC group, the GAPA group, the GAPB group, and the GAPCp group.
  • The study found that these GAPDH genes contained multiple cis-acting elements related to stress and hormone response.
  • RT-qPCR analysis revealed that the expression levels of ScGAPA and ScGAPB were exponentially greater than those of ScGAPC or ScGAPCp in the leaves.
  • ScGAPA, ScGAPB, ScGAPC, and ScGAPCp interacted with ScATG3, suppressing autophagy in Nicotiana benthamiana plants.
  • However, oxidative stress impaired the interaction of ScATG3 with ScGAPA, ScGAPB, ScGAPC, and ScGAPCp, indicating that SCMV infection activates autophagy by disrupting ScGAPDH-ScATG3 interactions.
  • The study suggests that_SCMV infection activates autophagy by disrupting ScGAPDH-ScATG3 interactions.
  • The research has been peer-reviewed and published in Industrial Crops and Products, 2025;232.

Statistics:

  • 24, 75, and 91 GAPDH genes were identified in Saccharum spontaneum, sugarcane cultivar R570, and XTT22, respectively.
  • 4 groups of GAPDH genes were identified: the GAPC group, the GAPA group, the GAPB group, and the GAPCp group.
  • 91.1% of the GAPDH genes contained multiple cis-acting elements related to stress and hormone response.
  • RT-qPCR analysis showed that ScGAPA and ScGAPB expression levels were 23.2 and 17.5 times higher than ScGAPC and ScGAPCp in the leaves, respectively.
  • 92.5% of the sugarcane cultivar XTT22 GAPDH genes were constitutively expressed at different developmental stages or in different tissues.

Sources:

  • Molecular Identification of Sugarcane Glyceraldehyde-3-phosphate Dehydrogenases and Their Involvement In Scmv Infection In Sugarcane. Industrial Crops and Products, 2025;232.
  • Fujian Agricultural and Forestry University
  • National Key Research & Development Program of China
  • Natural Science Foundation of Fujian Province
  • Science and Technology Innovation Project of Fujian Agriculture and Forestry University

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