台湾非膝状珊瑚藻属(单足目,红藻目)的系统订正,包括三个新种

IF 1.5 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY Phycologia Pub Date : 2023-05-29 DOI:10.1080/00318884.2023.2202533
Li-Chia Liu, Showe-Mei Lin
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Systematic revision of the non-geniculate coralline genus Phymatolithon (Hapalidiales, Rhodophyta) from Taiwan, including three new species
ABSTRACT Phymatolithon is a dominant genus in the algal reefs in Northwest Taiwan. In this study, we describe three new species of Phymatolithon, P. fragile sp. nov., P. taiwanense sp. nov. and P. variabile sp. nov., based on morpho-anatomical characters examined with both light and electron microscopy, and DNA sequence analyses. Phymatolithon fragile is only found in northern Taiwan (a subtropical area) and can be separated from the other species from Taiwan based on its thin thallus (<130 µm thick when mature vs >200 µm in other species) and the possession of bisporangia only. Phymatolithon taiwanense and P. variabile are widely distributed in both northern (subtropical) and southern (tropical) Taiwan and can only be distinguished by a combination of characters relating to the sizes of tetrasporangial compartments and the number of cell layers in cortex and medulla. In addition, P. taiwanense and P. variabile are the first two species of Phymatolithon shown to occur in tropical waters. This study suggests that our knowledge of the species diversity of Phymatolithon in tropical regions, particularly in the Indo-Pacific, will increase when more collections are made and analysed by a combination of morphological and molecular approaches.
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来源期刊
Phycologia
Phycologia 生物-海洋与淡水生物学
CiteScore
3.10
自引率
18.80%
发文量
54
审稿时长
3 months
期刊介绍: Phycologia is published bimonthly by the International Phycological Society and serves as a publishing medium for information about any aspect of phycology. Membership in the Society is not necessary for publication. Submitted manuscripts cannot be previously published or submitted elsewhere. Copyright ownership of all accepted papers is held by the International Phycological Society.
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