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http://krishi.icar.gov.in/jspui/handle/123456789/40626
Title: | A comparative synthesis of transcriptomic analyses reveals major differences between WSSV-susceptible Litopenaeus vannamei and WSSV-refractory Macrobrachium rosenbergii |
Authors: | L. Peruzza S. Thamizhvanan S. Vimal K. Vinaya Kumar MS. Shekhar V.J. Smith C. Hauton KK.Vijayan A. S. Sahul Hameed |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Central Institute of Brackishwater Aquaculture |
Published/ Complete Date: | 2019-11-30 |
Project Code: | BT/IN/Indo-UK/BBSRC-Aqua/38/MSS/ 2015–16 |
Keywords: | White spot syndrome virus Susceptible Litopenaeus vannamei Refractory Macrobrachium rosenbergii |
Abstract/Description: | Since the 1990s White Spot Syndrome Virus (WSSV) has severely affected shrimp aquaculture worldwide causing a global pandemic of White Spot Disease (WSD) in penaeid culture. However, not all decapod species that can be infected by WSSV show the same susceptibility to the virus, thus raising interesting questions regarding the potential genetic traits that might confer resistance to WSSV. In order to shed light into the genetic markers of WSSV resistance, we employed a dual approach: (i) we initially analysed the transcriptomes derived from the hepatopancreas of two species, the susceptible white shrimp Litopenaeus vannamei and the refractory fresh water prawn Macrobrachium rosenbergii, both infected with WSSV. We found a large number of differentially expressed genes (DEGs) belonging to the immune system (mostly anti-microbial peptides and haemolymph clotting components) that were generally up-regulated in M. rosenbergii and down-regulated in L. vannamei. Further, in both species we identified many up-regulated DEGs that were related to metabolism (suggesting a metabolic shift during the infection) and, interestingly, in L. vannamei only, we found several DEGs that were related to moult and suggested an inhibition of the moult cycle in this species following WSSV infection. (ii) we then identified a limited number of genetic markers putatively linked with WSD tolerance by employing an ecological genomics approach in which we compared published reports with our own RNA-seq datasets for different decapod species infected with WSSV. Using this second comparative approach, we found nine candidate genes which are consistently down-regulated in susceptible species and up-regulated in refractory species and which have a role in immune response. Together our data offer novel insights into gene expression differences that can be found in susceptible and refractory decapod species infected with WSSV and provide a valuable resource towards our understanding of the potential genetic basis of tolerance to WSSV. |
Type(s) of content: | Research Paper |
Sponsors: | This work was supported by the Newton Fund Global Research Partnership in Aquaculture for the project ‘Poverty alleviation through prevention and future control of the two major socioeconomically- important diseases in Asian aquaculture’, by the Department of Biotechnology, Ministry of Science and Technology India under Sanction Order BT/IN/Indo-UK/BBSRC-Aqua/38/MSS/ 2015–16, and from the UK BBSRC, UK ESRC and UK Aid under contract BB/N005058/1. |
Language: | English |
Name of Journal: | Development and Comparative Immunology |
NAAS Rating: | 9.19 |
Volume No.: | 104 |
Page Number: | 103564 |
Source, DOI or any other URL: | https:// doi.org/10.1016/j.dci.2019.103564. |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/40626 |
Appears in Collections: | FS-CIBA-Publication |
Files in This Item:
File | Description | Size | Format | |
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macrobrachium resistance.pdf | 3.16 MB | Adobe PDF | View/Open |
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