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- W3202531314 abstract "Abstract South Africa harbors a rich and diverse terrestrial snail fauna. Despite their importance in ecosystem functioning and structure, their alpha taxonomic diversity is poorly understood, and most groups have not been the subject of molecular systematic scrutiny. During the present study, we used the mitochondrial cytochrome c oxidase subunit I ( COI ) locus to start a DNA barcode reference library, to examine intra‐ and interspecific genetic divergence, and to explore the presence of cryptic diversity among terrestrial gastropods from forested regions in the country. We generated 399 COI barcodes comprising 70 morphospecies in 26 genera and 15 families, representing nearly 10% of the described gastropod diversity in South Africa. Our results showed a substantial overlap between mean intraspecific and interspecific genetic variation and no barcoding gap. Three species delimitation methods—Poisson Tree Processes (PTP), Refined Single Linkage (RESL) algorithm in Barcode of Life Data Systems, and the Automatic Barcode Gap Discovery (ABGD)—applied to selected widespread species retrieved incongruent operational taxonomic units (OTUs). These results, coupled with high intraspecific variation, suggested cryptic diversity among several terrestrial gastropod genera in the country. We further demonstrated that DNA barcoding analysis holds the potential for highlighting cryptic lineages in snails and for revealing taxa in need of taxonomic revision. We recommend that future taxonomic studies of South African terrestrial snails incorporate multiple sources of information for species delimitation." @default.
- W3202531314 created "2021-10-11" @default.
- W3202531314 creator A5056269656 @default.
- W3202531314 creator A5072167991 @default.
- W3202531314 creator A5083153151 @default.
- W3202531314 date "2021-10-07" @default.
- W3202531314 modified "2023-10-15" @default.
- W3202531314 title "Barcoding of South African forest‐dwelling snails (Mollusca: Gastropoda) reveals widespread cryptic diversity" @default.
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- W3202531314 doi "https://doi.org/10.1111/ivb.12348" @default.
- W3202531314 hasPublicationYear "2021" @default.
- W3202531314 type Work @default.