A reference DNA barcode library for Austrian amphibians and reptiles

Area of Science:

• Zoology
• Genetics
• Conservation Biology

Background:

• DNA barcoding is crucial for biodiversity inventories and monitoring.
• Comprehensive reference databases are essential for accurate species identification.
• Previous studies highlighted the utility of DNA barcoding in various taxa.

Purpose of the Study:

• To create a comprehensive DNA barcode inventory of Austrian amphibian and reptile species.
• To assess the effectiveness of DNA barcoding for species identification and lineage detection in Austria.
• To identify new species, monitor gene flow, and detect alien populations.

Main Methods:

• Generated 194 DNA barcodes for Austrian amphibians and reptiles under the Austrian Barcode of Life (ABOL) initiative.
• Utilized DNA barcoding for species identification, lineage analysis, and detection of cryptic diversity.
• Compared generated data with existing European DNA barcoding datasets.

Main Results:

• Successful species identification for most Austrian amphibians and reptiles, with exceptions in hybridogenetic complexes (Pelophylax spp.) and sympatric newts (Triturus spp.).
• Detected deep conspecific lineages within species like Natrix natrix and Podarcis muralis, indicated by multiple Barcode Index Numbers (BINs).
• Confirmed the presence of Natrix helvetica and Pelophylax bergeri in Austria for the first time, alongside other genetic findings.

Conclusions:

• DNA barcoding is highly effective for identifying most Austrian amphibian and reptile species across all life stages.
• The method is valuable for discovering new species, monitoring genetic diversity, gene flow, and alien species.
• The generated DNA barcode data supports scientific research and national/transnational conservation initiatives.