Taxonomic revision of Gelidium tsengii and Gelidium honghaiwanense sp. nov. (Gelidiales, Rhodophyta) from China based upon molecular and morphological data analyses

Xulei Wang; Bangmei Xia; Antonella Bottalico; Guangce Wang

doi:10.1007/s00343-017-5340-1

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Taxonomic revision of Gelidium tsengii and Gelidium honghaiwanense sp. nov. (Gelidiales, Rhodophyta) from China based upon molecular and morphological data analyses

Updated：2023-05-16

- Taxonomic revision of Gelidium tsengii and Gelidium honghaiwanense sp. nov. (Gelidiales, Rhodophyta) from China based upon molecular and morphological data analyses
- Journal of Oceanology and Limnology Vol. 35, Issue 6, Pages: 1442-1453(2017)
- Affiliations：
  
  1. Key Laboratory of Experimental Marine Biology Institute of Oceanology Chinese Academy of Sciences
  2. Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and Technology
  3. University of Chinese Academy of Sciences
  4. Department of Marine Organism Taxonomy and Phylogeny Institute of Oceanology Chinese Academy of Sciences
  5. Department of Biology University of Bari A. Moro
- Author bio：
- Funds：
- DOI：10.1007/s00343-017-5340-1
  CLC：
- Online First：26 January 2017，
  
  Published：2017
- Accepted：
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Wang, X., Xia, B., Bottalico, A. et al. Taxonomic revision of Gelidium tsengii and Gelidium honghaiwanense sp. nov. (Gelidiales, Rhodophyta) from China based upon molecular and morphological data analyses., Chin. J. Ocean. Limnol. 35, 1442–1453 (2017). https://doi.org/10.1007/s00343-017-5340-1
DOI：

Wang, X., Xia, B., Bottalico, A. et al. Taxonomic revision of Gelidium tsengii and Gelidium honghaiwanense sp. nov. (Gelidiales, Rhodophyta) from China based upon molecular and morphological data analyses., Chin. J. Ocean. Limnol. 35, 1442–1453 (2017). https://doi.org/10.1007/s00343-017-5340-1 DOI：

摘要

Abstract

The taxonomic relationship of Chinese Gelidium tsengii and Gelidium johnstonii was ambiguous. For almost 20 years they have been regarded as distinct taxa and until 2002 G. johnstonii was considered as a misapplied name of G. tsengii. In this study

herbarium specimens that initially attributed to G. tsengii and fresh G. tsengii specimens were used to address the taxonomic issues. In phylogenetic studies

G. tsengii from Dayawan

China

near the type locality of G. tsengii and G. johnstonii from Sonora

Mexico

the type locality of G. johnstonii

formed a monophyletic group with maximum support in rbcL and COI genes analyses

indicating that they were genetically identical. In morphological studies

G. tsengii was similar to G. johnstonii in branching pattern

inner structures and fructiferous organs. Consequently

we considered that semi-circular outline of G. tsengii could no longer be treated as a discrimating feature. G. johnstonii had priority of publication and according to the International Code of Botanical Nomenclature

G. tsengii was proposed as a synonym of G. johnstonii. Gelidium honghaiwanense sp. nov. was described from Guangdong

China on the basis of morphological and molecular data. For vegetative structures

it was characterized by flattened upright frond

regular two-three times branches pinnate or alternate and clavate ultimate branchlets. For reproductive structures

the tetrasporangial sori were in the apical part of branches and the tetrasporangial branchlets were distichously distributed along second order branches. The present study clarified the relationship between G. tsengii and G. johnstonii from Guangdong and added a new Gelidium species to the Chinese algal flora.

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references

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