分子分析解决了百慕大Laurencia复合体(Rhodomelaceae, Ceramiales)的分类问题，并发现了软骨藻和Laurenciella的新种

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-01-26 DOI:10.5252/cryptogamie-algologie2022v43a1

Thea R. Popolizio, C. Schneider, Walter M. Jongbloed, G. Saunders, C. Lane

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引用次数: 2

摘要

在过去的十年中，分子工具已经在百慕大的海洋植物区系中揭示了大量以前未被认识的分类群，特别是红水藻。一些物种由于形态上与其他地方的物种相似而被误认。有些已被分配到以前没有报道过的岛屿现有分类群，许多已被确定为新物种。最近，研究人员在全球几个地区对“劳伦西亚复合体”进行了实质性的改造。在此，我们确认了在该复杂群落中发现的8个属中的5个在百慕大的存在，即Laurencia J.V.Lamouroux, Chondrophycus (j.t tokida & Y.Saito) Garbary & j.t.h apper, Palisada (Yamada) K.W.Nam, Yuzurua (K.W.Nam) Martin-Lescanne和Laurenciella Cassano, Gil-Rodríguez, Senties, Díaz-Larrea, m.c.o oliveira和m.t.r ujii，并讨论了该物种的历史和目前在岛上已知的物种。rbcL叶绿体序列和COI-5P线粒体序列都支持百慕大至少两个物种的识别，这些物种在分子分析中被分配给L. dendroidea j.a agardh和L. catarinensis Cordeiro-Marino和M.T.Fujii。我们提出了两个新种，planiparvus Popolizio, c.w.s耐德和C.E.Lane, sp. 11和Laurenciella namii Popolizio, c.w.s耐德和C.E.Lane, sp. 11，后者在遗传上不同于L. marilzae (Gil-Rodriguez, Sentíes, Diaz-Larrea, Cassano和M.T.Fujii)， Gil-Rodriguez, Sentíes, Diaz-Larrea, Cassano和M.T.Fujii, L. mayaimii Collado-Vides, Cassano和M.T.Fujii和一个来自巴西的未描述物种。我们还利用ITS (rRNA)序列探索了Laurencia catarinensis、L. dendroidea和L. microcladik tzing的种限。基于最近从百慕大和加勒比海收集的Laurencia microcladia的完整描述也包括在本研究中。

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Molecular Analysis Resolves the Taxonomy of the Laurencia Complex (Rhodomelaceae, Ceramiales) in Bermuda and Uncovers Novel Species of Chondrophycus and Laurenciella

ABSTRACT In the last decade, molecular tools have revealed a significant number of previously unrecognized taxa in Bermuda's marine flora, especially among the Rhodophyta. A number of species have been persistently misidentified based on morphological similarities to species described from other localities. Some have been assigned to existing taxa not previously reported for the islands, and many have been determined to be novel species. Of late, researchers have substantially modified the ‘Laurencia complex’ in several regions around the globe. Herein, we confirm the presence in Bermuda of five of the eight genera recognized in this complex – Laurencia J.V.Lamouroux, Chondrophycus (J.Tokida & Y.Saito) Garbary & J.T.Harper, Palisada (Yamada) K.W.Nam, Yuzurua (K.W.Nam) Martin-Lescanne and Laurenciella Cassano, Gil-Rodríguez, Senties, Díaz-Larrea, M.C.Oliveira & M.T.Fujii, and discuss the species historically and presently known in the islands. Both rbcL chloroplast sequences and COI-5P mitochondrial sequences support the recognition of at least two species for what has historically been labeled L. obtusa in Bermuda, these assigned to L. dendroidea J.Agardh and L. catarinensis Cordeiro-Marino & M.T.Fujii in molecular analyses. We present two new species, Chondrophycus planiparvus Popolizio, C.W.Schneider & C.E.Lane, sp. nov. and Laurenciella namii Popolizio, C.W.Schneider & C.E.Lane, sp. nov., the latter genetically distinct from L. marilzae (Gil-Rodriguez, Sentíes, Diaz-Larrea, Cassano & M.T.Fujii) Gil-Rodriguez, Sentíes, Diaz-Larrea, Cassano & M.T.Fujii, L. mayaimii Collado-Vides, Cassano & M.T.Fujii and an undescribed species from Brazil. We also used ITS (rRNA) sequences to explore species limits for Laurencia catarinensis, L. dendroidea and L. microcladia Kützing. A full description of Laurencia microcladia, based on recent collections from Bermuda and the Caribbean Sea, is also included in this study.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.