关键词: Brachyura Crustacea Disease Ecology Fishery Virology Virus

Mesh : Animals Brachyura / metabolism Nudiviridae Florida Phylogeny Mercenaria

来  源:   DOI:10.1016/j.virol.2023.109910

Abstract:
Menippe mercenaria, the Florida stone crab, supports an unconventional fishery across the southern USA and Caribbean that involves claw-removal and the return of de-clawed animals to the sea. We provide pathological, ultrastructural, and genomic detail for a novel hepatopancreatic, nucleus-specific virus - Menippe mercenaria nudivirus (MmNV) - isolated from M. mercenaria, captured during fisheries-independent monitoring. The virus has a genome of 99,336 bp and encodes 84 predicted protein coding genes and shows greatest similarity to Aratus pisonii nudivirus (ApNV) (<60% protein similarity and 31 shared genes of greatest similarity), collected from the Florida Keys, USA. MmNV is a member of the Gammanudivirus genus (Naldaviricetes: Lefavirales: Nudiviridae). Comparisons of virus genome size, preferred host environment, and gene number revealed no clear associations between the viral traits and phylogenetic position. Evolution of the virus alongside the diversification of host taxa, with the potential for host-switching, remain more likely evolutionary pathways.
摘要:
MenippeMercenaria,佛罗里达石蟹,支持在美国南部和加勒比海地区进行非常规渔业,包括去除爪子和将去爪动物返回海洋。我们提供病理学,超微结构,和新的肝胰腺的基因组细节,细胞核特异性病毒-Menippemercenarianumdivirus(MmNV)-分离自M.mercenaria,在独立于渔业的监测过程中捕获的。该病毒具有99,336bp的基因组,编码84个预测的蛋白质编码基因,并显示出最大的相似性,比松病毒(ApNV)(<60%的蛋白质相似性和31个最大相似性的共享基因),从佛罗里达群岛收集的,美国。MmNV是Gammanudivirus属(Naldaviricetes:Lefavirales:Nubriridae)的成员。病毒基因组大小的比较,首选主机环境,基因数量显示病毒性状和系统发育位置之间没有明确的关联。随着宿主分类群的多样化,病毒的进化,具有主机交换的潜力,保持更有可能的进化途径。
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