Species Diversity of Shallow Water Zoanthids (Cnidaria: Anthozoa: Hexacorallia) in Florida

Q1 Agricultural and Biological Sciences
J. Reimer, C. Foord, Yuka Irei
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引用次数: 39

Abstract

Shallow water zooxanthellate zoanthids are a common component of the coral reef ecosystems of the Caribbean. Despite this, their species diversity remains poorly understood. In this study, collected Palythoa, Zoanthus, Isaurus ,a ndTerrazoanthus specimens from the waters of Florida were phylogenetically examined to obtain a better understanding of zoanthid species diversity in the Caribbean. Surprisingly, the results from analyses utilizing three DNA markers (mitochondrial 16S ribosomal DNA, cytochrome oxidase subunit I, and the internal transcribed spacer of ribosomal DNA) showed the presence of at least eleven species, of which up to four appear undescribed. Additionally, the presence of the genus Terrazoanthus in the Caribbean was confirmed for the first time. Attempts to match phylogenetic species or clades with original literature were hampered by vague and short original descriptions, and it is clear that for Atlantic Palythoa and Zoanthus species an in-depth and multidisciplinary investigation is needed to reconcile recent phylogenetic results such as in this study with traditional taxonomy. Furthermore, most shallow water zoanthid species from Florida were observed to have close, sister-species relationships with previously investigated species in the Pacific Ocean. These results indicate that many brachycnemic zoanthid species likely had a Caribbean-Pacific distribution until the formation of the Isthmus of Panama. However, due to inadvertent redescriptions, overall species diversity in these two common genera is likely much lower than literature indicates.
佛罗里达浅水虫虫纲(刺胞纲:刺虫纲:刺虫纲)的物种多样性
浅水虫黄藻是加勒比海珊瑚礁生态系统的共同组成部分。尽管如此,它们的物种多样性仍然知之甚少。为了更好地了解加勒比海地区的虫纲物种多样性,本研究对佛罗里达水域收集的Palythoa、Zoanthus、Isaurus、a和terrazoanthus标本进行了系统发育研究。令人惊讶的是,利用三种DNA标记(线粒体16S核糖体DNA,细胞色素氧化酶亚基I和核糖体DNA的内部转录间隔物)的分析结果显示,至少存在11种,其中多达4种似乎未被描述。此外,在加勒比地区首次确认了水陆虫属的存在。由于原始文献描述的模糊和简短,阻碍了系统发育物种或分支与原始文献的匹配,很明显,对于大西洋Palythoa和Zoanthus物种,需要进行深入的多学科研究,以使最近的系统发育结果与传统的分类相一致。此外,佛罗里达州的大多数浅水虫种被观察到与太平洋中先前调查的物种有密切的姐妹种关系。这些结果表明,在巴拿马地峡形成之前,许多短速虫纲物种可能在加勒比海-太平洋地区分布。然而,由于无意的重新描述,这两个常见属的总体物种多样性可能远低于文献所示。
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
Journal of Marine Biology
Journal of Marine Biology Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
3.10
自引率
0.00%
发文量
3
审稿时长
18 weeks
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