Please use this identifier to cite or link to this item: https://doi.org/10.1163/18759866-08703002
Title: MOLECULAR AND ANATOMICAL ANALYSES REVEAL THAT PERONIA VERRUCULATA (GASTROPODA: ONCHIDIIDAE) IS A CRYPTIC SPECIES COMPLEX
Authors: Chang, Jia Jin Marc 
Tay, Ywee Chieh 
Ang, Hui Ping
Tun, Karenne Phyu Phyu
Chou, Loke Ming 
Meier, Rudolf 
Huang, Danwei 
Keywords: Science & Technology
Life Sciences & Biomedicine
Zoology
DNA barcoding
cytochrome c oxidase subunit I (COI)
scanning electron microscopy (SEM)
cryptic diversity
integrative taxonomy
Singapore
DNA BARCODES
TAXONOMY
MOLLUSCA
DIVERSITY
PULMONATA
COASTAL
EUPULMONATA
GENUS
OPISTHOBRANCHIA
RECONSTRUCTION
Issue Date: 1-Jan-2018
Publisher: NATURALIS BIODIVERSITY CENTER
Citation: Chang, Jia Jin Marc, Tay, Ywee Chieh, Ang, Hui Ping, Tun, Karenne Phyu Phyu, Chou, Loke Ming, Meier, Rudolf, Huang, Danwei (2018-01-01). MOLECULAR AND ANATOMICAL ANALYSES REVEAL THAT PERONIA VERRUCULATA (GASTROPODA: ONCHIDIIDAE) IS A CRYPTIC SPECIES COMPLEX 87 (3) : 149-165. ScholarBank@NUS Repository. https://doi.org/10.1163/18759866-08703002
Abstract: © 2018 SPB Academic Publishing bv. Recent years have seen an increase in the number of studies that use DNA sequence information in addition to morphological methods, as the latter alone can be inadequate for morphologically similar, cryptic species. Marine onchidiid slugs (Mollusca: Gastropoda: Onchidiidae), which commonly inhabit intertidal environments and have a near-global distribution, comprise 11 genera and 86 described species. Singapore has 19 recorded species of onchidiids with Peronia verruculata (Cuvier, 1830) being the most abundant. Here we present mitochondrial DNA sequence data from 63 P. verruculatalike specimens to show that they constitute two closely-related clades with distinct sequence signatures and a clear barcode gap. Intraclade distances are 0-1.8% while interclade distances range from 4.7 to 6.0%. Scanning electron microscopy of internal copulation organs reveals that the two clades have distinct penial and accessory gland spine structures, which also differ in size. Using an integrative taxonomic approach, we propose that what was initially thought to be P. verruculata in Singapore, actually are two different species of Peronia.
URI: https://scholarbank.nus.edu.sg/handle/10635/155352
ISSN: 1383-4517
1875-9866
DOI: 10.1163/18759866-08703002
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