• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jgen/097/05/1353-1361

    • Keywords

       

      ERECTA; extracellular domain; receptor-like kinase; shade avoidance; soybean.

    • Abstract

       

      The receptor-like kinase ERECTA (ER) plays vital roles in plant adaptation under environmental stress including shade avoidance in Arabidopsis. In our previous study, we identified four ER paralogues in soybean (GmERs) that showed high similarities to Arabidopsis ER. Each GmER was predicted to generate diverse alternative splicing variants. However, whether soybean GmERs contribute to shade avoidance is unknown. Here we report our characterization of GmERs in response to shading. Promoter::GUS staining analysis shows that expression of GmER paralogous genes was differentially induced under shade stress. Further analyses show that GmERa.1 and GmERa.2 exhibit a larger distinction in length than the other GmER variants. GmERa.2 has the shortest length of amino acid with only 15 leucine-rich repeats which is the part of the extracellular domain of GmERa.1. Overexpression of GmERa.2 fully rescued the hypocotyl length, leaf area and petiole length, and the sensitivity of the hypocotyl of Arabidopsis mutant er-3 to shading, suggesting that the truncated extracellular domain of GmERa might contribute importantly to shade avoidance.

    • Author Affiliations

       

      JUNBO DU1 YAN LI1 XIN SUN1 LIANG YU1 HENGKE JIANG1 QIULIN CAO1 JING SHANG1 MENGYUAN SUN1 YI LIU1 KAI SHU1 JIANG LIU1 TAIWEN YONG1 WEIGUO LIU1 FENG YANG1 XIAOCHUN WANG1 CHUNYAN LIU1 WENYU YANG1

      1. College of Agronomy, Sichuan Agricultural University/Sichuan Engineering Research Center for Crop Strip Intercropping system/Key Laboratory of Crop Eco-physiology and Farming System in Southwest China (Ministry of Agriculture), Sichuan Agricultural University, Chengdu 611130, People’s Republic of China
    • Dates

       
    • Supplementary Material

       
  • Journal of Genetics | News

© 2017-2019 Indian Academy of Sciences, Bengaluru.