Overexpression of NHL6 affects seed production in transgenic Arabidopsis plants

编号 040018803

推送时间 20190527

研究领域 森林培育 

年份 2019 

类型 期刊 

语种 英语

标题 Overexpression of NHL6 affects seed production in transgenic Arabidopsis plants

来源期刊 Plant Growth Regulation

期 第188期

发表时间 20190320

关键词 Arabidopsis;  Development;  NHL6;  Seedproduction; 

摘要 In higher plants, NHL (NDR1/HIN1-like) genes play important roles in response to both biotic and abiotic stresses. However, their biological functions in plant growth and development are largely unknown. Previously, we identified an NHL6 gene from Arabidopsis. Overexpression of NHL6 inhibited seed germination under abiotic stress conditions. In this work, we demonstrate that NHL6 also has a function in seed development. Transgenic Arabidopsis plants overexpressing NHL6 produced shorter siliques and fewer seeds per silique, but increased seed size, leading to decreased seed yield per plant. Pollen viability and meiosis studies did not show any difference between wild type and transgenic plants. In a yeast-two-hybrid screening, a tubby-like F-box protein AtTLP11 was identified as a potential interacting protein of NHL6, which was negatively correlated with NHL6 expression. Our results reveal a critical role of NHL gene in the seed development and a possible connection between NHL and AtTLP families in plants.

服务人员 孙小满

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