Abstract:
Leucochloridium spp. have been established in Taiwan since the 1930s, with five species listed: Leucochloridium turdi, Leucochloridium passeri, Leucochloridium muscularae, Leucochloridium sime, and Leucochloridium taiwanese listed until now. Because of the similar morphology among the adults of the Leucochloridiidae family, the taxonomic status of most of them should be reconsidered. Broodsacs are the most distinct characteristic shared by Leucochloridium flukes, and L. passeri is, by far, the only one whose broodsacs have been described. In this study, broodsacs collected from an infected Succinea sp. (amber snails) in Taiwan were morphologically compared to previous descriptions and sequenced using both nuclear and mitochondrial genetic markers for identification. Our samples resembled broodsacs of L. passeri previously described in northern Taiwan and those recently collected in Okinawa, Japan. The conspecific status of the broodsacs collected in Taiwan and Okinawa was supported by the identical DNA sequences identified in this study. Broodsacs have rarely been reported in tropical and subtropical regions, although some Leucochloridium spp. have been recorded. In such cases, genetic markers will be crucial to link Leucochloridium broodsacs in snails (intermediate host) with their corresponding adult stage in birds (definitive host).
摘要:
白草藻属。自1930年代以来一直在台湾建立,列出了五个物种:白菜,白菜鸟,白螺,西姆白术,台湾白铜上市直到现在。由于白云母科成虫的形态相似,其中大多数的分类地位应该重新考虑。Broodsacs是Leucochloridium吸虫共有的最明显的特征,而L.Passeri是,到目前为止,唯一一个被描述过的人。在这项研究中,从受感染的Suceminiasp。台湾的(琥珀蜗牛)在形态上与以前的描述进行了比较,并使用核和线粒体遗传标记进行了测序以进行鉴定。我们的样本类似于先前在台湾北部描述的L.passeri和最近在冲绳收集的样本,日本。在本研究中鉴定出的相同DNA序列支持了在台湾和冲绳收集的broodsacs的同种状态。在热带和亚热带地区很少报道Broodsacs,虽然一些白菜属物种。已被记录下来。在这种情况下,遗传标记对于将蜗牛(中间宿主)中的Leucochloridiumbroodsacs与鸟类(最终宿主)中相应的成年阶段联系起来至关重要。