Heligmosomoides neopolygyrus Asakawa & Ohbayashi, 1986, a cryptic Asian nematode infecting the striped field mouse Apodemus agrarius in Central Europe
Heligmosomoides neopolygyrus Asakawa & Ohbayashi, 1986, a cryptic Asian nematode infecting the striped field mouse Apodemus agrarius in Central Europe
复制标题
浅川黑蝽
作者：
G. Zaleśny;J. Hildebrand;A. Paziewska;J. Behnke;P. D. Harris
背景多回拟卷尾线虫（Heligmosomoides polygyrus）是一种广泛分布于欧洲的野生黑线姬鼠（Apodemus）胃肠道线虫。利用分子和形态学证据，我们回顾了来自波兰黑线姬鼠的Heligmosomoides的地位，以前被认为是H. polygyrus，以进一步解决实验室模式种的地位，H.方法对雄性腔上囊和合生囊进行形态学分析，并对连接的核蛋白进行分子生物学分析。（28S rDNA，ITS1和ITS2）和线粒体（CO1和cytb）基因，并与欧亚大陆田鼠和小鼠的相关Heligmosomides进行比较。在西欧首次发现感染了波兰的黑线姬鼠。它与H.多脑回由雄性交配囊的丝状外背射线和身体上的小的、均匀分布的纵向分泌物组成。来自A.黑线姬鼠与黑线姬鼠在核糖体（ITS1和ITS2）核基因座上存在20%的差异，在线粒体cytb基因座上存在10%的差异。多脑回，并在系统发育分析组与田鼠感染属Heligmosomum。neopolygyrus与H. polygyrus来自西欧的姬鼠，并可能更密切相关的田鼠感染类群。它是由最近宿主小鼠的快速迁移带入欧洲的。包括H。neopolygyrus的发现表明，Heligmosomoides是并系的，感染高原鼠兔的Ohbayashinema和感染田鼠的Heligmosomum在其中筑巢。neopolygyrus也允许H. bakeri是H. polygyrus，而不是作为后者分类的内部分支。
BackgroundHeligmosomoides polygyrus is a widespread gastro-intestinal nematode infecting wild Apodemus (wood mice) throughout Europe. Using molecular and morphological evidence, we review the status of Heligmosomoides from Apodemus agrarius in Poland previously considered to be an outlying clade of H. polygyrus, to further resolve the status of the laboratory model species, H. bakeri.MethodsMorphological analysis of the male bursa and the synlophe, and molecular analyses of concatenated nuclear (28S rDNA, ITS1 and ITS2) and mitochondrial (CO1 and cytb) genes, of Heligmosomoides collected from Apodemus agrarius from two sites in Poland and comparison with related heligmosomids from voles and mice in Eurasia.ResultsHeligmosomoides neopolygyrus, a heligmosomid nematode from Apodemus species from China and Japan, is recognised for the first time in western Europe infecting Apodemus agrarius in Poland. It can be distinguished from H. polygyrus by the filiform externo-dorsal rays of the male copulatory bursa and the small, equally distributed longitudinal crêtes on the body. Specimens from A. agrarius are 20% different at ribosomal (ITS1 and ITS2) nuclear loci, and 10% different at the mitochondrial cytb locus from H. polygyrus, and in phylogenetic analyses group with the vole-infecting genus Heligmosomum.ConclusionsDespite morphological similarity, H. neopolygyrus is only distantly related to H. polygyrus from western European Apodemus, and may be more closely related to vole-infecting taxa. It was brought into Europe by the recent rapid migration of the host mice. Inclusion of H. neopolygyrus in phylogenies makes it clear that Heligmosomoides is paraphyletic, with the pika-infecting Ohbayashinema and the vole-infecting Heligmosomum nesting within it. Clarification of the European status of H. neopolygyrus also allows H. bakeri, the laboratory model species, to be seen as a terminal sister clade to H. polygyrus, rather than as an internal clade of the latter taxon.
影响因子：
14.9
作者：
Koetschan C;Förster F;Keller A;Schleicher T;Ruderisch B;Schwarz R;Müller T;Wolf M;Schultz J
通讯作者：
Schultz J