• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>other >Cthulhu Macrofasciculumque n. g. n. sp. and Cthylla Microfasciculumque n. g. n. sp. a Newly Identified Lineage of Parabasalian Termite Symbionts
【2h】

Cthulhu Macrofasciculumque n. g. n. sp. and Cthylla Microfasciculumque n. g. n. sp. a Newly Identified Lineage of Parabasalian Termite Symbionts

机译：邪神macrofasciculumqueñ。克正。 sp。和Cthylla microfasciculumqueñ。克正。属parabasalian白蚁共生的新发现的天堂

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The parabasalian symbionts of lower termite hindgut communities are well-known for their large size and structural complexity. The most complex forms evolved multiple times independently from smaller and simpler flagellates, but we know little of the diversity of these small flagellates or their phylogenetic relationships to more complex lineages. To understand the true diversity of Parabasalia and how their unique cellular complexity arose, more data from smaller and simpler flagellates are needed. Here, we describe two new genera of small-to-intermediate size and complexity, represented by the type species Cthulhu macrofasciculumque and Cthylla microfasciculumque from Prorhinotermes simplex and Reticulitermes virginicus, respectively (both hosts confirmed by DNA barcoding). Both genera have a single anterior nucleus embeded in a robust protruding axostyle, and an anterior bundle flagella (and likely a single posterior flagellum) that emerge slightly subanteriorly and have a distinctive beat pattern. Cthulhu is relatively large and has a distinctive bundle of over 20 flagella whereas Cthylla is smaller, has only 5 anterior flagella and closely resembles several other parababsalian genera. Molecular phylogenies based on small subunit ribosomal RNA (SSU rRNA) show both genera are related to previously unidentified environmental sequences from other termites (possibly from members of the Tricercomitidae), which all branch as sisters to the Hexamastigitae. Altogether, Cthulhu likely represents another independent origin of relatively high cellular complexity within parabasalia, and points to the need for molecular characterization of other key taxa, such as Tricercomitus.
机译：下白蚁后肠群落的parabasalian共生体以其巨大的规模和复杂的结构而闻名。最复杂的形式独立于较小和较简单的鞭毛虫多次进化，但是我们对这些小鞭毛虫的多样性或它们与更复杂谱系的系统发育关系知之甚少。为了了解Parabasalia的真正多样性及其独特的细胞复杂性是如何产生的，需要来自较小和较简单鞭毛的更多数据。在这里，我们描述了两个由小到中等大小和复杂性的新属，分别由Prorhinotermes simplex和Reticulitermes virginicus的Cthulhu macrofasciculumque和Cthylla microfaciciculumque类型物种代表（两个宿主均通过DNA条形码确认）。这两个属都有一个嵌入健壮的突出轴突的单个前核，以及一个在前下方稍稍出现并具有独特搏动模式的前束鞭毛（可能还有一个后鞭毛）。 Cthulhu相对较大，有超过20根鞭毛的独特束，而Cthylla较小，仅具有5根前鞭毛，非常类似于其他几个乳突动物属。基于小亚基核糖体RNA（SSU rRNA）的分子系统发育研究表明，这两个属均与其他白蚁（可能来自三角虫的成员）先前未鉴定的环境序列有关，这些序列均作为六头​​s的姐妹。总的来说，克苏鲁很可能代表了抛物面内相对较高的细胞复杂性的另一个独立起源，并指出需要对其他关键分类群（如三角恐龙）进行分子鉴定。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号