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首页> 外文期刊>Bulletin de la Societe Zoologique de France >ETUDE COMPAREE DU POLYMORPHISME ENZYMATIQUE CHEZ DEUX FAMILLES DE BRYOZOAIRES CELLULARINES: LES BUGULIDAE ET LES CANDIDAE
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ETUDE COMPAREE DU POLYMORPHISME ENZYMATIQUE CHEZ DEUX FAMILLES DE BRYOZOAIRES CELLULARINES: LES BUGULIDAE ET LES CANDIDAE

机译：纤维素素苔藓虫的两个家族中的酶多态性的比较研究：BUGULIDAE和CANDIDAE

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摘要

Eight species of Cellularine Bryozoans were compared, belonging to the family Bugulidae (Bugula neritina, B. fulva, B. stolonifera and B. angustiloba) and to the family Candidae {Scrupocellaria reptans, S. bertholleti and S. scruposa, Tricellaria inopinata). All the species have short-lived planktonic larval stages. Twenty populations were studied, taken from Europe (North Sea, English Channel, Bay of Biscay and lagoon of Venice) and Japan (Hokkaido Island). The electrophoregrams of a number of enzymatic systems were obtained on polyacrylamide gels with porosity gradient. The following systems were considered: acid phosphatase, alkaline phosphatase, non specific esterases, leucine aminopepti-dase, malate dehydrogenase, malic enzyme, phosphoglucomutase, glucose-6-phosphate dehydrogenase. The ubiquitous Bugula neritina (known as a common fouling organism, tolerant of environmental conditions) shows the greatest affinities among the different populations. The other species, having more discontinuous distributions, exhibit a greater genetic divergence: in particular for Bugula fulva and Scrupocellaria reptans; each population seems to have evolved independently from the others. In general the populations at the extremes of the geographic range considered (Texel, The Netherlands, and Venice, Italy) are the most divergent. Also Bugula stolonifera shows a small number of co-occu-ring bands; the population from the Arcachon harbour, having a completely different pro-teinogram, has been probably introduced recently, while the one from Le Havre harbour could be issued of successive conspecific introductions from different geographic sources. Very low affinities were present among the zymograms of the examined species of a given genus. However, the phenotypes that could be used a species markers, though existent, are generally few and the diagnostic systems differ according to individual species. Strong affinities were revealed between the Italian and Japanese populations of Tricellaria inopinata, thus confirming the probable North Pacific geographic origin of the population invasive in the lagoon of Venice.
机译：比较了8种Cellularine苔藓虫，它们属于Bugulidae科（Bugula neritina，B.fulva，B。stolonifera和B.angustiloba）和Candidae科（Scrupocellaria reptans，S。bertholleti和S.scruposa，Tricellaria inopinata）。所有物种都有短暂的浮游幼虫阶段。研究了20个种群，分别来自欧洲（北海，英吉利海峡，比斯开湾和威尼斯泻湖）和日本（北海道岛）。在具有孔隙率梯度的聚丙烯酰胺凝胶上获得了许多酶系统的电泳图。考虑了以下系统：酸性磷酸酶，碱性磷酸酶，非特异性酯酶，亮氨酸氨基肽酶，苹果酸脱氢酶，苹果酸酶，磷酸葡萄糖变位酶，葡萄糖6-磷酸脱氢酶。无处不在的Bugula neritina（被称为常见的结垢生物，可以耐受环境条件）显示出不同人群之间的亲和力最大。其他物种，具有更多的不连续分布，表现出更大的遗传差异：特别是对富虫（Bugula fulva）和破壁念珠菌（Scrophorcellaria reptans）；每个人似乎都独立于其他人而进化。通常，所考虑的地理范围极端（荷兰的特塞尔和意大利的威尼斯）的人口差异最大。 Bugula stolonifera也显示出少量的共咬环带。阿卡雄（Arcachon）港口的种群具有完全不同的蛋白质，可能是最近引入的，而勒阿弗尔（Le Havre）港口的种群可能会发布来自不同地理来源的连续具体介绍。在给定属的被检查物种的酶谱图之间存在非常低的亲和力。然而，尽管可以使用物种标记物，但其表型通常很少，并且诊断系统会根据单个物种而有所不同。意大利和日本的Tricellaria inopinata种群之间具有很强的亲和力，从而证实了入侵威尼斯泻湖的人口的北太平洋地理起源。

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