Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific

As close relatives of the vertebrates, cephalochordates have been the focus of significant evo–devo and genomic research; however, their biodiversity and systematics remain poorly known. In particular, few species have been documented in the eastern Pacific and there are few published observations f...

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Main Authors: Maycol Ezequiel Madrid Concepcion, Kenneth S. Macdonald, Amy C. Driskell, Regina Wetzer, Maikon Di Domenico, Rachel Collin
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Diversity
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Online Access:https://www.mdpi.com/1424-2818/17/6/411
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author Maycol Ezequiel Madrid Concepcion
Kenneth S. Macdonald
Amy C. Driskell
Regina Wetzer
Maikon Di Domenico
Rachel Collin
author_facet Maycol Ezequiel Madrid Concepcion
Kenneth S. Macdonald
Amy C. Driskell
Regina Wetzer
Maikon Di Domenico
Rachel Collin
author_sort Maycol Ezequiel Madrid Concepcion
collection DOAJ
description As close relatives of the vertebrates, cephalochordates have been the focus of significant evo–devo and genomic research; however, their biodiversity and systematics remain poorly known. In particular, few species have been documented in the eastern Pacific and there are few published observations for this region. Using sequences from COI and 16S DNA barcode markers and morphological observations from 16 animals collected incidentally during other studies, we document the presence of three species of amphioxus on the Pacific coast and one from the Caribbean coast of Panama. The high genetic diversity recovered from so few samples suggests that the application of molecular taxonomy to neotropical amphioxus would likely uncover additional species and could help to more easily delineate morphological differences among taxa.
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issn 1424-2818
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series Diversity
spelling doaj-art-1fe90cf165584232acd00ac94fdf9abc2025-08-20T03:27:14ZengMDPI AGDiversity1424-28182025-06-0117641110.3390/d17060411Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern PacificMaycol Ezequiel Madrid Concepcion0Kenneth S. Macdonald1Amy C. Driskell2Regina Wetzer3Maikon Di Domenico4Rachel Collin5NAOS Marine and Molecular Laboratories, Smithsonian Tropical Research Institute, Ancón 0843-03092, PanamaLaboratories of Analytical Biology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USALaboratories of Analytical Biology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USAMarine Biodiversity Center, Natural History Museums of Los Angeles County, Los Angeles, CA 90007, USACenter for Marine Studies (CEM), Universidade Federal do Paraná, (UFPR), Pontal do Paraná 83255-976, PR, BrazilNAOS Marine and Molecular Laboratories, Smithsonian Tropical Research Institute, Ancón 0843-03092, PanamaAs close relatives of the vertebrates, cephalochordates have been the focus of significant evo–devo and genomic research; however, their biodiversity and systematics remain poorly known. In particular, few species have been documented in the eastern Pacific and there are few published observations for this region. Using sequences from COI and 16S DNA barcode markers and morphological observations from 16 animals collected incidentally during other studies, we document the presence of three species of amphioxus on the Pacific coast and one from the Caribbean coast of Panama. The high genetic diversity recovered from so few samples suggests that the application of molecular taxonomy to neotropical amphioxus would likely uncover additional species and could help to more easily delineate morphological differences among taxa.https://www.mdpi.com/1424-2818/17/6/411CephalochordataamphioxusPanamaDNA barcodingtropical biodiversitymarine invertebrate larvae
spellingShingle Maycol Ezequiel Madrid Concepcion
Kenneth S. Macdonald
Amy C. Driskell
Regina Wetzer
Maikon Di Domenico
Rachel Collin
Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific
Diversity
Cephalochordata
amphioxus
Panama
DNA barcoding
tropical biodiversity
marine invertebrate larvae
title Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific
title_full Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific
title_fullStr Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific
title_full_unstemmed Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific
title_short Lots of Lancelets or Not? Diversity of Cephalochordates in the Tropical Eastern Pacific
title_sort lots of lancelets or not diversity of cephalochordates in the tropical eastern pacific
topic Cephalochordata
amphioxus
Panama
DNA barcoding
tropical biodiversity
marine invertebrate larvae
url https://www.mdpi.com/1424-2818/17/6/411
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