Phenotypic and transcriptomic characterization of an ABA-sensitive mutant generated by microspore embryogenesis in barley
文献类型： 外文期刊
作者： Li, Yingbo 1 ; Guo, Guimei 1 ; Xu, Hongwei 1 ; Zong, Yingjie 1 ; Zhang, Shuwei 1 ; Huang, Linli 1 ; Gao, Runhong 1 ; Lu, Ruiju 1 ; Zhou, Longhua 1 ; Liu, Chenghong 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Biotech Res Inst, Shanghai 201106, Peoples R China
2.Shanghai Key Lab Agr Genet & Breeding, Shanghai 201106, Peoples R China
关键词： Barley; microspore embryogenesis; mutant; ABA sensitive; transcriptomic
期刊名称：JOURNAL OF PLANT INTERACTIONS （ 影响因子：4.029； 五年影响因子：5.124 ）
ISSN： 1742-9145
年卷期： 2022 年 17 卷 1 期
页码：
收录情况： SCI
摘要： Barley (Hordeum vulgare L.) has been recognized as an ideal model plant to study the mechanism of environmental adaptation for crop improvement owing to its wide adaption to abiotic stresses. Abscisic acid is an essential hormone involved in many abiotic stresses. Here, an ABA-sensitive barley mutant (abas1) was generated by microspore embryogenesis. On exogenous ABA treatment, the seedlings of abas1 presented less plant height, root length, shoot and root dry matter than the wild type, and more genes showedigher expressional intensity and up-regulation models by RNA-Seq profiling. The gene ontology analysis revealed that the regulation of DEGs may lead to the activation of the ROS pathway and consumption of more energy in abas1, specifically. Furthermore, the up-regulation of two candidate genes (P450 and NsLTP) in abas1 may contribute to the variation of ABA sensitivity. Our findings provide more valuable material and information toward the understanding of the mechanism of ABA response in barley.
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