Genome-Wide Analysis of the Growth-Regulating Factor Family in Peanut (Arachis hypogaea L.)

International Journal of Molecular Sciences

Zhongfeng Li¹  Jialin He¹  Xingli Ma¹  Kunkun Zhao¹  Dongmei Yin¹  Longlong Ning¹  Xingguo Zhang¹  Ke Li¹ 

[1] College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China;

关键词: peanut;    GRF;    gene family;    expression analysis;   

DOI  :  10.3390/ijms20174120

来源: DOAJ

【 摘 要 】

Growth-regulating factors (GRFs) are plant-specific transcription factors that perform important functions in plant growth and development. Herein, we identified and characterised 24 AhGRF genes in peanut (Arachis hypogaea). AhGRF family genes were divided into six classes with OLQ and WRC domains. Transcriptome expression profile showed that more AhGRF genes, such as AhGRF5a gene, were at higher expression during pod development in Arachis monticola than cultivated species, especially at the pod rapid-expansion stage. AhGRF5a and AhGRF5b genes expressed at higher levels in pods than roots, leaves and stems tissues, existing in the difference between Arachis monticola and H8107. Exogenous GA3 application can activate AhGRF5a and AhGRF5b genes and H8107 line showed more positive response than Arachis monticola species. These results imply that these two AhGRF genes may be active during the peanut pod development.

【 授权许可】

Unknown