Occurrence of Dictyosphaeria (Cladophorales, Chlorophyta) species on the Brazilian coast and oceanic islands, based on morphological and molecular data

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-03 DOI:10.1515/bot-2023-0066

Jhullyrson Osman Ferreira de Brito, Michelle Cristine Santos Silva, Mariana Cabral Oliveira, Franciane Pellizzari, Valéria Cassano, Watson Arantes Gama

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引用次数: 0

Abstract

Molecular data related to morphology from the multicellular vesiculated genus Dictyosphaeria are scarce. We provide the first molecular data on Dictyosphaeria species from the southwestern Atlantic Ocean, sampled from the Brazilian northeastern coast, and two oceanic islands (Trindade, southeastern Brazil, and Fernando de Noronha, northeastern Brazil). The samples from Brazil were morphologically identified as Dictyosphaeria versluysii and D. ocellata. Our newly generated sequences of D. versluysii formed a monophyletic clade, while their relationship with D. versluysii from the Indo-Pacific Ocean, where the type locality of the species is located, was unresolved. Additionally, the newly generated sequences of D. ocellata confirm its status as a distinct species but reinforce the difficulties in morphologically separating this species. These results might be indicative of cryptic diversity in D. versluysii and highlight the need for molecular data from other geographic locations to understand the diversity and distribution of Dictyosphaeria species.

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根据形态学和分子数据，巴西海岸和大洋岛屿上出现的 Dictyosphaeria（Cladophorales，叶绿体）物种

与多细胞泡囊藻属 Dictyosphaeria 形态有关的分子数据非常稀少。我们首次提供了大西洋西南部 Dictyosphaeria 物种的分子数据，样本来自巴西东北海岸和两个大洋岛屿（巴西东南部的特林达德岛和巴西东北部的费尔南多-德诺罗尼亚岛）。来自巴西的样本经形态学鉴定为 Dictyosphaeria versluysii 和 D. ocellata。我们新生成的 D. versluysii 序列形成了一个单系支系，而它们与该物种模式产地所在的印度-太平洋地区的 D. versluysii 的关系尚未得到解决。此外，新产生的 D. ocellata 的序列证实了其作为一个独立物种的地位，但也增加了从形态学上区分该物种的困难。这些结果可能表明了 D. versluysii 的隐性多样性，并强调了从其他地理位置获取分子数据以了解 Dictyosphaeria 物种的多样性和分布的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.