Revealing the species diversity of Neolyngbya (Cyanobacteria, Oscillatoriales) from subtropical coastal regions of Okinawa, Japan, with descriptions of Neolyngbya intertidalis sp. nov. and Neolyngby latusa sp. nov.
Revealing the species diversity of Neolyngbya (Cyanobacteria, Oscillatoriales) from subtropical coastal regions of Okinawa, Japan, with descriptions of Neolyngbya intertidalis sp. nov. and Neolyngby latusa sp. nov.
复制标题
揭示日本冲绳亚热带沿海地区的 Neolyngbya（蓝细菌，振荡目）物种多样性，并描述 Neolyngbya intertidalis sp。
DOI：
10.1111/pre.12482
复制
发表时间：
2022
影响因子：
1.5
通讯作者：
Shoichiro Suda
中科院分区：
文献类型：
--
作者：
Handung Nuryadi;Shoichiro Suda
由于珊瑚礁创造的栖息地多样性，冲绳海岸是生物多样性的丰富来源，包括丝状蓝藻。在冲绳的海岸线上，一些未被描述的物种，包括那些来自新大陆的物种，仍未被发现。在这项研究中，使用多相方法鉴定了两种形态相似的蓝藻物种。这两个分类群的形态特征与已知的新林亚种相似；但细胞大小和菌体形状不同。对16S rRNA基因和16S‐23S rRNA内部转录间隔区（ITS）的系统发育分析表明，这两个新种在新林属中形成了一个高度支持的独立亚枝。因此，ITS区域的三个信息域（D1‐D1′，Box B和V3）在结构形式和配置上也与先前描述的物种不同，呈现出不同的二级结构。总体而言，16S rRNA基因和16S‐23S rRNA ITS区域的形态和系统发育分析，以及ITS区域的二级结构，支持了新林亚种中两个新种的说法。在此，我们提议。intertidalissp。11月啊。latusasp。2011年11月，根据《国际藻类、真菌和植物命名规则》（ICN）的规定，成为国际藻类、真菌和植物命名规则的新成员。
Okinawan coasts are a rich source of biodiversity, including of filamentous cyanobacteria, owing to their habitat diversity created by coral reefs. Along the coastlines of Okinawa, several undescribed species, including those fromNeolyngbya, remain unexplored. In this study, two undescribed cyanobacterial species with morphological resemblance toNeolyngbyawere identified using a polyphasic approach. Both taxa had morphological features similar to known species ofNeolyngbya; however, the cell size and thallus shape were different. Phylogenetic analyses of the 16S rRNA gene and the 16S‐23S rRNA internal transcribed spacer (ITS) region showed that the two new species formed a highly supported independent subclade withinNeolyngbya. Accordingly, three informative domains of the ITS region (D1‐D1′, Box B and V3) also presented distinct secondary structures compared to previously described species ofNeolyngbya, both in structure form and configuration. Overall, analyses of morphology and phylogeny of the 16S rRNA gene and the 16S‐23S rRNA ITS region, as well as the secondary structures of ITS region, supported the proposal of two new species withinNeolyngbya. Herein, we proposeN. intertidalissp. nov. andN. latusasp. nov. as new members ofNeolyngbyaunder the provisions of the International Code of Nomenclature for Algae, Fungi and Plants (ICN).