Allozyme and morphological identification of Anisakis, Contracaecum and Pseudoterranova from Japanese waters (Nematoda, Ascaridoidea)
Allozyme and morphological identification of Anisakis, Contracaecum and Pseudoterranova from Japanese waters (Nematoda, Ascaridoidea)
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DOI：
10.1023/a:1005914926720
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发表时间：
1998-06-01
影响因子：
1.3
通讯作者：
Bullini, L
中科院分区：
文献类型：
--
作者：
Mattiucci, S;Paggi, L;Bullini, L
等位酶标记用于鉴定日本海洋沃茨中的异尖线虫，形态上分为三个种复合体：异尖线虫单纯（S。L.），Contracaecum osculatum（s.（l.）和Pseudoplanova decipiens（s. l.）。样品分配给A。单纯形（s.（l.）在遗传上与A. simplex（sensu stricro），C. Osculatum（s.（l.）梭具孔草A.没有形态特征可用于区分这两个复合体的兄弟种。至于P. decipiens复合体，检测到两个不同的物种：第一个对应于P. decipiens C，以前在北方大西洋发现，第二个对应于P. decipiens D来自日本。这两个物种在遗传上分化良好，19个位点中有5个显示出不同的固定等位基因。它们的生殖隔离证明了缺乏杂种或重组体在同域样品回收相同的终末寄主，Erignathuscavitatus。发现P. decipiens D在形态上对应于Porrocaecum azarasi，先前被认为是P. decipiens的同义词。因此，名称Pseudoplanova azarasi（Yamaguti & Arima，1942）n. comb.为P.decipiens D.同样，P，decipiens C在一般形态、模式产地和宿主上与球蛔虫（Ascaris bulbosa）相符合，球蛔虫以前也被认为是P，decipiens的同义词。学名Pseudoplanova bulbosa（Cobb，1888）n. comb.为P.decipiens C.
Allozyme markers were used to identify anisakid nematodes from marine Japanese waters, morphologically assigned to three species complexes: Anisakis simplex (s. l.), Contracaecum osculatum (s. l.) and Pseudoterranova decipiens (s. l.). Samples assigned to A. simplex (s. l.) were found to correspond genetically to A. simplex (sensu stricro), those of C. osculatum (s. l.) to C. osculatum A. No morphological characters are yet available to distinguish sibling species of these two complexes. As to the P. decipiens complex, two distinct species were detected: the first corresponded to P. decipiens C, previously recovered in the northern Atlantic, the second to P. decipiens D from Japan. The two species are genetically well differentiated, with five of the 19 loci tested showing distinct fixed alleles. Their reproductive isolation was proved by the lack of hybrids or recombinants in sympatric samples recovered from the same definitive host, Erignathus barbatus. P. decipiens D was found to correspond morphologically to Porrocaecum azarasi, previously considered a synonym of P. decipiens. Accordingly, the name Pseudoterranova azarasi (Yamaguti & Arima, 1942) n. comb. is proposed for P. decipiens D. Similarly, P, decipiens C fits in general morphology, type-locality and host with Ascaris bulbosa, also previously considered a synonym of P, decipiens. The name Pseudoterranova bulbosa (Cobb, 1888) n. comb. is proposed for P. decipiens C.