Zhang Kai, Yue Dingyi, Wei Wei, Hu Yang, Feng Jiayue, Zou Zhirong
Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of AgricultureYangling, China; State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F UniversityYangling, China.
Front Plant Sci. 2016 Dec 1;7:1820. doi: 10.3389/fpls.2016.01820. eCollection 2016.
Calcium is a universal messenger that is involved in the modulation of diverse developmental and adaptive processes in response to various stimuli. Calmodulin (CaM) and calmodulin-like (CML) proteins are major calcium sensors in all eukaryotes, and they have been extensively investigated for many years in plants and animals. However, little is known about CaMs and CMLs in woodland strawberry (). In this study, we performed a genome-wide analysis of the strawberry genome and identified 4 and 36 genes. Bioinformatics analyses, including gene structure, phylogenetic tree, synteny and three-dimensional model assessments, revealed the conservation and divergence of and , thus providing insight regarding their functions. In addition, the transcript abundance of four genes and the four most related genes were examined in different tissues and in response to multiple stress and hormone treatments. Moreover, we investigated the subcellular localization of several FvCaMs and FvCMLs, revealing their potential interactions based on the localizations and potential functions. Furthermore, overexpression of five and genes could not induce a hypersensitive response, but four of the five genes could increase resistance to in leaves. This study provides evidence for the biological roles of and genes, and the results lay the foundation for future functional studies of these genes.
钙是一种通用信使,参与响应各种刺激对多种发育和适应性过程的调节。钙调蛋白(CaM)和类钙调蛋白(CML)蛋白是所有真核生物中的主要钙传感器,多年来它们在植物和动物中得到了广泛研究。然而,对于森林草莓中的CaM和CML却知之甚少。在本研究中,我们对草莓基因组进行了全基因组分析,鉴定出4个CaM基因和36个CML基因。包括基因结构、系统发育树、共线性和三维模型评估在内的生物信息学分析揭示了CaM和CML的保守性和差异性,从而为它们的功能提供了见解。此外,检测了4个CaM基因和4个最相关的CML基因在不同组织中的转录丰度以及对多种胁迫和激素处理的响应。此外,我们研究了几种草莓CaM和CML的亚细胞定位,基于定位和潜在功能揭示了它们的潜在相互作用。此外,5个CaM和CML基因的过表达不能诱导超敏反应,但5个基因中的4个可以增加草莓叶片对灰霉病的抗性。本研究为CaM和CML基因的生物学作用提供了证据,研究结果为这些基因未来的功能研究奠定了基础。