Conspecificity of the model organism Ulva mutabilis and Ulva compressa (Ulvophyceae, Chlorophyta).

Steinhagen, Sophie , Barco, Andrea, Wichard, Thomas and Weinberger, Florian (2019) Conspecificity of the model organism Ulva mutabilis and Ulva compressa (Ulvophyceae, Chlorophyta). Journal of Phycology, 55 (1). pp. 25-36. DOI 10.1111/jpy.12804.

[img] Text
Steinhagen_et_al-2019-Journal_of_Phycology.pdf - Published Version
Restricted to Registered users only

Download (1110Kb) | Contact
[img] Text
jpy12804-sup-0002-tables1.docx - Supplemental Material
Restricted to Registered users only

Download (48Kb) | Contact
[img] Image
jpy12804-sup-0001-figs1.tif - Supplemental Material
Restricted to Registered users only

Download (17Mb) | Contact

Supplementary data:

Abstract

As one of the most abundant and ubiquitous representatives of marine and brackish coastal macrophytobenthos communities, the genus Ulva is not only an important primary producer but also of ecological and morphogenetic interest to many scientists. Ulva mutabilis became an important model organism to study morphogenesis and mutualistic interactions of macroalgae and microorganisms. Here, we report that our collections of Ulva compressa Linnaeus (1753) from Germany are conspecific with the type strains of the model organism U. mutabilis Føyn (1958), which were originally collected at Olhão on the south coast of Portugal and have from that time on been maintained in culture as gametophytic and parthenogenetic lab strains. Different approaches were used to test conspecificity: (i) comparisons of vegetative and reproductive features of cultured material of U. mutabilis and German U. compressa demonstrated a shared morphological pattern; (ii) gametes of U. compressa and U. mutabilis successfully mated and developed into fertile sporophytic first‐generation offspring; (iii) molecular phylogenetics and species delimitation analyses based on the Generalized Mixed Yule‐Coalescent method showed that U. mutabilis isolates (sl‐G[mt+]) and (wt‐G[mt‐]) and U. compressa belong to a unique Molecular Operational Taxonomic Unit. According to these findings, there is sufficient evidence that U. mutabilis and U. compressa should be regarded as conspecific.

Document Type: Article
Keywords: conspecificity; model organism; morphology; mutation; species delimitation; taxonomy; tufA; Ulva
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-N Experimental Ecology - Food Webs
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-B Experimental Ecology - Benthic Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1111/jpy.12804
ISSN: 0022-3646
Projects: ChemBioSys
Date Deposited: 14 Dec 2018 09:18
Last Modified: 08 Mar 2019 08:02
URI: http://oceanrep.geomar.de/id/eprint/45013

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...