Biotechnology Bulletin ›› 2016, Vol. 32 ›› Issue (7): 81-86.doi: 10.13560/j.cnki.biotech.bull.1985.2016.07.012

• Orignal Article • Previous Articles     Next Articles

Molecular Cloning and Expression Analysis of Aquaporins SIP2-1 Gene from Banana

XU Yi1, 2, HOU Xiao-wan3, XU Bi-yu2, JIN Zhi-qiang1, 2, HU Wei2, SONG Shun1   

  1. 1. Hainan Key Laboratory of Banana Genetic Improvement,Haikou Experimental Station,Chinese Academy of Tropical Agricultural Sciences,Haikou 570102;
    2. Key Laboratory of Biology and Genetic Resources of Tropical Crops,Institute of Tropical Bioscience and Biotechnology (Ministry of Agriculture),Chinese Academy of Tropical Agricultural Sciences,Haikou 571101;
    3. South Subtropical Crops Research Institute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang 524091
  • Received:2015-10-22 Online:2016-07-25 Published:2016-07-25

Abstract: In the present study,we isolated an aquaporin gene from banana,and designated as MaSIP2-1. MaSIP2-1’s complete ORF was 717 bp,and it encoded 239 amino acids. Alignment of amino acid sequences and phylogenetic analysis indicated that the protein encoded by MaSIP2-1 was in high similarity with AQP-encoding protein in the other known plants;and highly homologous with amino acid sequences in Musa acuminate,Elaeis guineensis,Jatropha curcas,and Camellia sinensis by 98%,74%,65%,and 63%,respectively. Organ-specific analysis showed that MaSIP2-1 constitutively expressed in roots,stems,leaves,flowers and fruits,and the highest in stems. Stress analysis demonstrated that MaSIP2-1 responded to the stress such as the drought,salt and waterlogging.

Key words: aquaporins, SIP, banana, bioinformatics, stress, real-time PCR