Identification of AhAQ1 Encoding a Putative Aquaporin whose Expression is Regulated by Salt Stress In Peanut (Arachis hypogaea L.)  

Lijuan Pan , Qingli Yang , Yan Jiang , shanlin Yu
Shandong Peanut research institute, Qingdao 266100
Author    Correspondence author
Legume Genomics and Genetics, 2010, Vol. 1, No. 5   doi: 10.5376/lgg.2010.01.0005
Received: 21 Jun., 2010    Accepted: 11 Aug., 2010    Published: 18 Oct., 2010
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This article was first published in Molecular Plant Breeding (Regular Print Version), and here was authorized to redistribute under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Pan et al., 2009, Identification of AhAQ1 Encoding a Putative Aquaporin whose Expression is Regulated by Salt Stress In Peanut (Arachis hypogaea L.), Molecular Plant Breeding, 7(5): 867-872 (doi: 10.3969/mpb.007.000867)


The primary role of aquaporins is to control water transport in plants, which might function in plant response against salt stress. In this research, we obtained the full-length cDNA of an aquaporin gene AhAQ1 by RT-PCR approach from salt-stressed peanut leaves. AhAQ1 encodes a protein consisting of 287 amino acids with the calculated molecular mass of 30.57 KD and the isoelectric point of 9.04. Sequence analysis indicated that AhAQ1 contained six transmembrane domains and two NPA-boxes and phylogenetic analysis showed that the AhAQ1 clusters were the same with the PIP1 family. The expression pattern of AhAQ1 in peanut tissues under high-salt treatment was examined by semi-quantitative RT-PCR, The results showed that the accumulation of AhAQ1 transcripts was induced by salt stress . The combination of these results illustrate that AhAQ1 may play a role in peanut in response to salt stress.

Peanut; Aquaporin; Gene cloning; Expression analysis; Salt stress
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