Journal
MOLECULAR BIOLOGY REPORTS
Volume 43, Issue 5, Pages 437-450Publisher
SPRINGER
DOI: 10.1007/s11033-016-3973-3
Keywords
Aquaporin; Phyllostachys edulis; Gene expression; Abiotic stresses
Categories
Funding
- Special Fund for Forest Scientific Research in the Public Welfare from State Forestry Administration of China [201504106]
- Sub-Project of National Science and Technology Support Plan of the twelfth five-year in China [2015BAD04B01, 2015BAD04B03]
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Aquaporins (AQPs) are known to play a major role in maintaining water and hydraulic conductivity balance in the plant system. Numerous studies have showed AQPs execute multi-function throughout plant growth and development, including water transport, nitrogen, carbon, and micronutrient acquisition etc. However, little information on AQPs is known in bamboo. In this study, we present the first genome-wide identification and characterization of AQP genes in moso bamboo (Phyllostachys edulis) using bioinformatics. In total, 26 AQP genes were identified by homologous analysis, which were divided into four groups (PIPs, TIPs, NIPs, and SIPs) based on the phylogenetic analysis. All the genes were located on 26 different scaffolds respectively on basis of the gene mapped to bamboo genome. Evolutionary analysis indicated that Ph. edulis was more close to Oryza sativa than Zea mays in the genetic relationship. Besides, qRT-PCR was used to analyze gene expression profiles, which revealed that AQP genes were expressed constitutively in all the detected tissues, and were all responsive to the environmental cues such as drought, water, and NaCl stresses. This data suggested that AQPs may play fundamental roles in maintaining normal growth and development of bamboo, which would contribute to better understanding for the complex regulation mechanism involved in the fast-growing process of bamboo. Furthermore, the result could provide valuable information for further research on bamboo functional genomics.
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