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Genetic analysis of the Linnaean Ulva lactuca (Ulvales, Chlorophyta) holotype and related type specimens reveals name misapplications, unexpected origins, and new synonymies.

Hughey, J. R., Maggs, C., Mineur, F., Jarvis, C., Miller, K. A., Shabaka, S. H. and Gabrielson, P. W., 2019. Genetic analysis of the Linnaean Ulva lactuca (Ulvales, Chlorophyta) holotype and related type specimens reveals name misapplications, unexpected origins, and new synonymies. Journal of Phycology, 55 (3), 503-508.

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DOI: 10.1111/jpy.12860

Abstract

Current usage of the name Ulva lactuca, the generitype of Ulva, remains uncertain. Genetic analyses were performed on the U. lactuca Linnaean holotype, the U. fasciata epitype, the U. fenestrata holotype, the U. lobata lectotype, and the U. stipitata lectotype. The U. lactuca holotype is nearly identical in rbcL sequence to the U. fasciata epitype, a warm temperate to tropical species, rather than the cold temperate species to which the name U. lactuca has generally been applied. We hypothesize that the holotype specimen of U. lactuca came from the Indo-Pacific rather than northern Europe. Our analyses indicate that U. fasciata and U. lobata are heterotypic synonyms of U. lactuca. Ulva fenestrata is the earliest name for northern hemisphere, cold temperate Atlantic and Pacific species, with U. stipitata a junior synonym. DNA sequences from type specimens provide an unequivocal method for applying names to Ulva species. This article is protected by copyright. All rights reserved.

Item Type:Article
ISSN:0022-3646
Uncontrolled Keywords:Ulva fasciata; Ulva fenestrata; Ulva lobata; Ulva stipitata; biogeography; rbcL
Group:Faculty of Science & Technology
ID Code:32245
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:07 May 2019 09:56
Last Modified:25 Mar 2020 01:08

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