The SNP polymorphisms associated with WSSV-resistance of prophenoloxidase in red swamp crayfish (Procambarus clarkii) and its immune response against white spot syndrome virus (WSSV)

作者: Long Zhang , Yanhe Li , Minglin Wu , Haofeng Ouyang , Ruixue Shi

DOI: 10.1016/J.AQUACULTURE.2020.735787

关键词:

摘要: Abstract Prophenoloxidase (proPO), a critical enzyme in innate immune, has been extensively studied various crustacean species including red swamp crayfish Procambarus clarkii. However, little is known about the genetic structure of proPO from P. clarkii and its role antivirals. In this study, expression pattern upon white spot syndrome virus (WSSV) infection was investigated, genomic DNA sequence obtained for first time analyzed. The results indicated that mRNA level could be significantly upregulated haemocytes, hepatopancreas, gill midgut. 9085 bp length, which includes five exons interrupted by four introns, an 82 bp 5′-flanking region, 1671 bp 3′-untranslated region. Two TATA boxes as well three repeat sequences were predicted intron region proPO. Subsequently, single nucleotide polymorphisms (SNPs) identified genotyped population association between SNPs anti-WSSV traits investigated. Three regions identified, SNP 7081 T > C showed significant (P

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