The presence of exotic Hypnea flexicaulis (Rhodophyta) in the Mediterranean Sea as indicated by morphology, rbcL and cox1 analyses

作者：Wolf Marion Adelheid; Sfriso Adriano; Andreoli Carlo; Moro Isabella^*

来源：Aquatic Botany, 2011, 95(1): 55-58.

DOI：10.1016/j.aquabot.2011.02.009

• Exotic macroalgae
• Hypnea flexicaulis
• Mediterranean Sea
• Venice Lagoon
• cox1
• rbcL

Here we report the first finding of Hypnea flexicaulis Yamagishi and Masuda in the Mediterranean Sea (Lagoon of Venice, Italy), identified through molecular analyses using the plastid ribulose-1,5-bisphosphate carboxylase/oxygenase (rbcL) and the mitochondrial protein-coding cytochrome c oxidase subunit! (cox1)genes. The phylogenetic reconstruction, based on rbcL + cox1 multiple alignment, showed that all specimens of H. flexicaulis from Venice, Korea, Philippines and Taiwan were included in a monophyletic group supported by a bootstrap value of 100%.
It is highly probable that H. flexicaulis has been introduced from Indo-Pacific populations, in particular the Korean one, probably via ship traffic or shellfish transfers.
The use of DNA barcoding combined with morphological observations was, in this case, a rapid way to identify this allochthonous species.

• 出版日期2011-7