insights into infraspecific diversity
Annalisa Falace (Author), Chiara Manfrin (Author), Giovanni Furnari (Author), Sara D’Ambros Burchio (Author), Alberto Pallavicini (Author), Emmanuelle Patricia Descourvières (Author), Sara Kaleb (Author), Ana Lokovšek (Author), Daniele Grech (Author), Giuseppina Alongi (Author)

Abstract

Gongolaria barbata (Sargassaceae, Fucales) is a widespread species for which several infraspecific taxa have been described, indicating its polymorphism. This study contributes to the understanding of the molecular, nomenclatural, morphological and ecological aspects of G. barbata in the Mediterranean and sheds light on the infraspecific diversity and its implications for the taxonomy of this species. Molecular analyses were performed using sequencing of the mitochondrial cox1 gene on both haptophytic and pleustophytic forms from different sites in the Adriatic and Tyrrhenian Seas. Vegetative and reproductive morphology was studied on thalli samples from the Adriatic. Our results showed that there are different morphotypes within G. barbata populations related to specific environmental conditions, suggesting infraspecific variation. In contrast, molecular analyses showed no differences between samples, regardless of whether individuals are growing “attached” to a substrate or “unattached”. We also discussed the taxonomic status and nomenclatural issues related to certain infraspecific taxa previously proposed for G. barbata. In particular, the confusion surrounding Cystoseira aurantia is clarified.

Keywords

ekotipi;taksonomija;severni Jadran;Cystoseira s.l.;ecotypes;taxonomy;Northern Adriatic;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: NIB - National Institute of Biology
UDC: 582.24
COBISS: 183199491 Link will open in a new window
ISSN: 1179-3155
Views: 76
Downloads: 33
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Other data

Secondary language: Slovenian
Secondary keywords: ekotipi;taksonomija;severni Jadran;Cystoseira s.l.;
Pages: str. 191–205
Volume: ǂVol. ǂ635
Issue: ǂno. ǂ3
Chronology: 2024
DOI: 10.11646/PHYTOTAXA.635.3.1
ID: 23688081