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BioMed Research International
Volume 2017, Article ID 7904162, 13 pages
Research Article

Characterization and Expression Profiling Analysis of Calmodulin Genes in Response to Salt and Osmotic Stresses in Pear (Pyrus bretschneideri Rehd.) and in Comparison with Arabidopsis

1Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
2Department of Plant Sciences, University of Tennessee, Knoxville, TN 37996, USA
3Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA

Correspondence should be addressed to Jing Lin; moc.621@42209348jl, Zong-Ming (Max) Cheng; nc.ude.uajn@cmz, and Youhong Chang;

Received 29 October 2016; Revised 16 January 2017; Accepted 8 February 2017; Published 8 March 2017

Academic Editor: Antonello Merlino

Copyright © 2017 Jun Tang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A genome-wide identification and cloning of CaM genes in pear was conducted and in compared with Arabidopsis that indicated a conserved expansion of CaM genes in pear, and PbCaMs and AtCaMs had a similar distribution of cis-elements and expressions in response to salt and osmotic stress. In particular, PbCaM1 and PbCaM3 were both significantly upregulated in response to salt and osmotic stress in pear.