DNA Barcoding Reveals High Hidden Species Diversity of Chinese Waters in the Cephalopoda

Ran Xu; Ran Xu; Yuhan Lü; Yuhan Lü; Yan Tang; Yan Tang; Zhiwei Chen; Zhiwei Chen; Chenxi Xu; Chenxi Xu; Xiaoying Zhang; Xiaoying Zhang; Xiaodong Zheng; Xiaodong Zheng

doi:10.3389/fmars.2022.830381

Frontiers in Marine Science (Apr 2022)

DNA Barcoding Reveals High Hidden Species Diversity of Chinese Waters in the Cephalopoda

Ran Xu,
Ran Xu,
Yuhan Lü,
Yuhan Lü,
Yan Tang,
Yan Tang,
Zhiwei Chen,
Zhiwei Chen,
Chenxi Xu,
Chenxi Xu,
Xiaoying Zhang,
Xiaoying Zhang,
Xiaodong Zheng,
Xiaodong Zheng

Affiliations

Ran Xu: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Ran Xu: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
Yuhan Lü: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Yuhan Lü: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
Yan Tang: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Yan Tang: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
Zhiwei Chen: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Zhiwei Chen: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
Chenxi Xu: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Chenxi Xu: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
Xiaoying Zhang: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Xiaoying Zhang: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
Xiaodong Zheng: Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, China
Xiaodong Zheng: Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China

DOI: https://doi.org/10.3389/fmars.2022.830381
Journal volume & issue: Vol. 9

Abstract

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Species delimitation by traditional morphological methods is challenging in cephalopods due to their flexible bodies, changeable pigment traits, and sometimes high morphological homoplasy. Molecular information provides important assistance for taxonomic decision. In this study, we applied three species delimitation methods on 132 cephalopods from 7 families along Chinese waters, and we found anunderestimated species diversity in these taxa. A maximum of 56 molecular operational taxonomic units was detected, and possible cryptic diversities were revealed in Loliolus beka, Uroteuthis edulis, Octopus minor, Amphioctopus fangsiao, and Hapalochlaena lunulate. This study provides molecular evidence for the hidden species diversity along Chinese waters, and it provides insight into further taxonomic research on these morphologically variable taxa.

Published in Frontiers in Marine Science

ISSN: 2296-7745 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Natural history (General): General. Including nature conservation, geographical distribution
Website: https://www.frontiersin.org/journals/marine-science

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