Morphology, 18S rDNA sequence and rbcL phylogeny of Navicula veneta (Bacillariophyceae) from thermal muds in Italy

作者：Moroi Isabella; Maistro Silvia; Cassaro Laura; Rascio Nicoletta; Andreoli Carlo^*

来源：Cryptogamie Algologie, 2010, 31(2): 209-219.

• ADNr 18S
• Bacillariophyceae
• boues thermales
• morphologie
• Navicula
• rbcL
• ultrastructure

A new culture strain of Navicula veneta Kutzing (Bacillariophyceae) was isolated from brown mats covering thermal muds in the SPA town of Abano Terme, Padova, Italy. The morphology, 18S rDNA and rbcL gene sequences of this strain were analysed. The results do not support an existing taxonomic proposal to lower the taxonomic rank of Navicula veneta to a variety of Navicula cryptocephala Kutzing. Therefore, we consider Navicula veneta as a good species in its own right. We also hypothesize that the species Navicula veneta, as defined morphologically, contains a number of cryptic species yet to be discovered and analysed genetically.

• 出版日期2010-5