Transcriptomics analysis of salt stress tolerance in the roots of the mangrove Avicennia officinalis.

ABSTRACT: Salinity affects growth and development of plants, but mangroves exhibit exceptional salt tolerance. With direct exposure to salinity, mangrove roots possess specific adaptations to tolerate salt stress. Therefore, studying the early effects of salt on mangrove roots can help us better understand the tolerance mechanisms. Using two-month-old greenhouse-grown seedlings of the mangrove tree Avicennia officinalis subjected to NaCl treatment, we profiled gene expression changes in the roots by RNA-sequencing. Of the 6547 genes that were differentially regulated in response to salt treatment, 1404 and 5213 genes were significantly up- and down-regulated, respectively. By comparative genomics, 93 key salt tolerance-related genes were identified of which 47 were up-regulated. Upon placing all the

SUBMITTER: Krishnamurthy P 

PROVIDER: S-EPMC5577154 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature