Identification and expression characterisation of SbERECTA family genes in Sorghum bicolor

文献类型： 外文期刊

第一作者： Zheng, Jia Cheng

作者： Zheng, Jia Cheng;Xu, Zhao Shi;Ma, You Zhi;Zheng, Jia Cheng;Yu, Jie;Liu, Ting;Wang, Xin;Zhan, Qiu Wen;Li, Jie Qin

作者机构：

关键词： correlation analysis; ERECTA family; expression characteristics; SbER; sorghum

期刊名称：CROP & PASTURE SCIENCE （ 影响因子：2.286； 五年影响因子：2.507 ）

ISSN： 1836-0947

年卷期： 2021 年 72 卷 2 期

页码：

收录情况： SCI

摘要： ERECTAs are receptor-like kinases that regulate plant biomass and stress resistance. In this study, the wheat (Triticum aestivum) TaERECTA gene was used as a probe to identify the SbERECTA family genes (SbERs) in the sorghum (Sorghum bicolor) genome, analyse their subcellular localisation and characterise their expression. Results showed that the two SbER members, SbER10 with three copies (SbER10_X1, SbER10_X2, and SbER10_X3) and SbER4 with two copies (SbER4_X1 and SbER4_X2), were found on chromosomes 10 and 4 of sorghum, respectively. SbER10 had the highest expression level in the pedicel tissue and showed a remarkable response under treatment with abscisic acid, brassinolide, gibberellin and indole-3-acetic acid. SbER10_X1, functioning on the cell membrane and chloroplast, exhibited abundant transcript in only a few sorghum varieties that are grown in mountainous areas and receive strong light, heat, and water supply. Expression of SbER10_X1 was significantly and positively correlated with plant biomass of 32 sorghum germplasm resources. These results indicate that SbER10 genes have an important regulatory role in sorghum growth, and increasing SbER10 transcription level offers a potential strategic target for breeding or biotechnological approaches to enhance sorghum biomass and environmental adaptability.

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