Evolutionary history of the heat shock protein 90 (Hsp90) family of 43 plants and characterization of Hsp90s in Solanum
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ORIGINAL ARTICLE
Evolutionary history of the heat shock protein 90 (Hsp90) family of 43 plants and characterization of Hsp90s in Solanum tuberosum Wan Li1 · Yue Chen1 · Minghui Ye1 · Dongdong Wang1 · Qin Chen2 Received: 28 May 2020 / Accepted: 2 August 2020 © Springer Nature B.V. 2020
Abstract Heat shock protein 90 genes/proteins (Hsp90s) are related to the stress resistance found in various plant species. These proteins affect the growth and development of plants and have important effects on the plants under various stresses (cold, drought and salt) in the environment. In this study, we identified 334 Hsp90s from 43 plant species, and Hsp90s were found in all species. Phylogenetic tree and conserved domain database analysis of all Hsp90s showed three independent clades. The analysis of motifs, gene duplication events, and the expression data from PGSC website revealed the gene structures, evolution relationships, and expression patterns of the Hsp90s. In addition, analysis of the transcript levels of the 7 Hsp90s in potato (Solanum tuberosum) under low temperature and high temperature stresses showed that these genes were related to the temperature stresses. Especially StHsp90.2 and StHsp90.4, under high or low temperature conditions, the expression levels in leaves, stems, or roots were significantly up-regulated. Our findings revealed the evolution of the Hsp90s, which had guiding significance for further researching the precise functions of the Hsp90s. Keywords Hsp90 · Heat resistance · Cold resistance · Potato (Solanum tuberosum) · Abiotic stress
Introduction
Wan Li and Yue Chen have contributed equally to this work. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11033-020-05722-x) contains supplementary material, which is available to authorized users. * Dongdong Wang dongdong‑[email protected] * Qin Chen [email protected] Wan Li [email protected] Yue Chen [email protected] Minghui Ye [email protected] 1
State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, China
College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, Shaanxi, China
2
Plants are continuously affected by various environmental factors, including temperature variations, salinity, and drought during the growth process. These stresses can lead to many undesirable consequences such as hindered plant growth and reduced crop yields. Under various adverse environment conditions, plants have a complex set of physiological, biochemical and molecular regulatory mechanisms to prevent cell damage and maintain the normal growth and development of plants [1]. The Hsps in plants is a family that is very sensitive to temperature changes [2–4], and has an important influence on the heat resistance of plants [5]. Hsps are widely found in animals, plants and microorganisms [6], and according to the molecular weight, they can be divided into 6 types: smH
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