来自加那利群岛大加那利岛的新种线虫（线虫纲：异皮科）的形态学和分子特征

Morphological and molecular characterization of n. sp. (Nematoda: Heteroderidae) from Gran Canaria, Canary Islands.

作者信息

Singh Phougeishangbam Rolish, Karssen Gerrit, Couvreur Marjolein, Bert Wim

机构信息

Nematology Research Unit, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, 9000, Ghent, Belgium.

National Plant Protection Organization, Wageningen Nematode Collection, P.O. Box 9102, 6700, HC, Wageningen, The Netherlands.

出版信息

J Nematol. 2020 Nov 24;52. doi: 10.21307/jofnem-2020-098. eCollection 2020.

DOI:10.21307/jofnem-2020-098

PMID:33829181

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8015325/

Abstract

n. sp. from the coastal dunes of Gran Canaria, Canary Islands, is described. This new species belongs to the group of with ambifenestrate fenestration, presence of prominent bullae, and a strong underbridge of cysts. It is characterized by vermiform second-stage juveniles having a slightly offset, dome-shaped labial region with three annuli, four lateral lines, a relatively long stylet (27-31 µm), short tail (35-45 µm), and 46 to 51% of tail as hyaline portion. Males were not found in the type population. Phylogenetic trees inferred from D2-D3 of 28S, partial ITS, and 18S of ribosomal DNA and of mitochondrial DNA sequences indicate a position in the ' clade'.

摘要

描述了来自加那利群岛大加那利岛沿海沙丘的一个新物种。这个新物种属于具有双侧开孔的穿孔、显著大疱的存在以及囊肿强下桥的类群。其特征是蠕虫状的第二期幼虫，唇区略偏、呈圆顶形，有三个环纹，四条侧线，相对较长的口针（27 - 31微米），短尾（35 - 45微米），尾的46%至51%为透明部分。在模式种群中未发现雄性。从核糖体DNA的28S的D2 - D3、部分ITS和18S以及线粒体DNA序列推断的系统发育树表明其在“进化枝”中的位置。