Wang Lulu, Liu Yanhui, Chai Mengnan, Chen Huihuang, Aslam Mohammad, Niu Xiaoping, Qin Yuan, Cai Hanyang
State Key Lab of Ecological Pest Control for Fujian and Taiwan Crops; Key Lab of Genetics, Breeding and Multiple Utilization of Crops, Ministry of Education; Fujian Provincial Key Lab of Haixia Applied Plant Systems Biology, College of Life Sciences, Fuji, Fuzhou, Fujian, China.
State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, Guangxi, China.
PeerJ. 2021 Apr 27;9:e11329. doi: 10.7717/peerj.11329. eCollection 2021.
Transcription factors (TFs), such as heat shock transcription factors (HSFs), usually play critical regulatory functions in plant development, growth, and response to environmental cues. However, no HSFs have been characterized in pineapple thus far. Here, we identified 22 genes from the pineapple genome. Gene structure, motifs, and phylogenetic analysis showed that families were distinctly grouped into three subfamilies (12 in Group A, seven in Group B, and four in Group C). The promoters contained various -elements associated with stress, hormones, and plant development processes, for instance, STRE, WRKY, and ABRE binding sites. The majority of were expressed in diverse pineapple tissues and developmental stages. The expression of / and were enriched in the ovules and fruits, respectively. Six genes ( , , , , and ) were transcriptionally modified by cold, heat, and ABA. Our results provide an overview and lay the foundation for future functional characterization of the pineapple gene family.
转录因子（TFs），如热休克转录因子（HSFs），通常在植物发育、生长以及对环境信号的响应中发挥关键的调控作用。然而，迄今为止，尚未在菠萝中鉴定出热休克转录因子。在此，我们从菠萝基因组中鉴定出22个基因。基因结构、基序和系统发育分析表明，这些基因家族明显分为三个亚家族（A组12个，B组7个，C组4个）。这些基因的启动子包含与胁迫、激素和植物发育过程相关的各种元件，例如，应激反应元件（STRE）、WRKY和脱落酸响应元件（ABRE）结合位点。大多数基因在菠萝的不同组织和发育阶段表达。其中两个基因分别在胚珠和果实中表达富集。六个基因（具体基因名未给出）受到冷、热和脱落酸的转录修饰。我们的研究结果提供了一个概述，并为菠萝热休克转录因子基因家族未来的功能表征奠定了基础。
