First molecular phylogeny of the subfamily Polycerinae (Mollusca, Nudibranchia, Polyceridae)

Palomar, Gemma; Pola, Marta; García‐Vázquez, Eva

doi:10.1007/s10152-013-0374-z

Cited by 16 publications

(12 citation statements)

References 62 publications

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“…The nudibranch species J. tomentosa (family Discodorididae) was chosen for outgroup taxa in the phylogenetic analyses based on the results of Palomar et al . (2014).…”

Section: Methodsmentioning

confidence: 99%

“…Additionally, 47 sequences of the cytochrome c oxidase subunit I (COI) of Polycera quadrilineata and other Polyceridae taxa, representing a total of 17 species, together with the outgroup species Jorunna tomentosa (Cuvier, 1804) were obtained from GenBank and BOLD databases ( Table 1). The nudibranch species J. tomentosa (family Discodorididae) was chosen for outgroup taxa in the phylogenetic analyses based on the results of Palomar et al (2014).…”

Section: Taxon Samplingmentioning

confidence: 99%

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Integrative taxonomy reveals a cryptic species of the nudibranch genusPolycera(Polyceridae) in European waters

et al. 2020

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This work aimed to test whether the colour variability featured by the European nudibranch Polycera quadrilineata is consistent with the concept of a single polychromatic species or may hide multiple lineages. Samples from across the geographic range of P. quadrilineata together with representatives from worldwide species with a focus on Atlantic diversity, were gathered and studied using an integrative taxonomic approach. Morpho-anatomical characters were investigated by light and scanning electron microscopy. Bayesian molecular phylogenetics using MrBayes, the Automatic Barcode Gap Discovery species delimitation method, and haplotype network analysis using the PopArt software were employed to help delimit species using the mitochondrial gene cytochrome c oxidase subunit I (COI). The results supported the existence of a second species, here described and named Polycera norvegica sp. nov., only known from Norway where it is sympatric with P. quadrilineata. The COI uncorrected p-genetic distance between the two species was estimated at 9.6–12.4%. Polycera norvegica sp. nov. differs by exhibiting a black dotted or patchy dotted pattern occasionally with more or less defined orange/brown patches, but never black continuous or dashed stripes as in P. quadrilineata. The two species share a common colouration with a whitish base and yellow/orange tubercles. Anatomically, P. norvegica sp. nov. has a weaker labial cuticle, a smaller radula with fewer rows, and only four marginal teeth, a reproductive system with a single lobed bursa copulatrix, shorter reproductive ducts, and a penis armed with two kinds of spines: needle-like and hook-shaped penile spines.

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“…The nudibranch species J. tomentosa (family Discodorididae) was chosen for outgroup taxa in the phylogenetic analyses based on the results of Palomar et al . (2014).…”

Section: Methodsmentioning

confidence: 99%

Section: Taxon Samplingmentioning

confidence: 99%

Integrative taxonomy reveals a cryptic species of the nudibranch genusPolycera(Polyceridae) in European waters

et al. 2020

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“…Although the monophyly of the subfamily Polycerinae was supported by molecular data (Palomar et al, 2014) confirming its phylogenetic identity as revealed by morphological studies (Alder and Hancock, 1845;Odhner, 1941), unfortunately, the relationships within Polycerinae as well as the monophyly of Polycera were never recovered (Palomar et al, 2014;Sørensen et al, 2020;Knutson and Gosliner, 2022).…”

Section: Introductionmentioning

confidence: 87%

“…They have paired jaws, the radula has up to 20 rows of teeth; the inner lateral teeth are hooked, the second lateral teeth being larger than the first, the outer laterals being small. They have a large prostate gland, and a penis armed with spines (Gray, 1857;Pruvot-Fol, 1954;Thompson, 1975;Palomar et al, 2014;Pola et al, 2014;Sørensen et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

New contributions to the subfamily Polycerinae (Nudibranchia, Polyceridae): description of three new species and one new genus

Pola,

Miguel-González,

Paz-Sedano

2023

J. Mar. Biol. Ass.

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The subfamily Polycerinae includes eight genera, from the monospecific Lamellana and Lecithophorus to the diverse Polycera and Gymnodoris, with 33 and 26 valid species, respectively. The monophyly of the subfamily has been tested by molecular data although not all genera were included. To date, relationships within the subfamily are not supported. In the present paper, three new species of polycerid nudibranchs are fully described based on specimens collected in Marshall Islands and Australia: one Palio species (Palio gaeli sp. nov.), one Polycera species (Polycera nimbsi sp. nov.) and a new genus (Paliota galactica gen. and sp. nov.). The new genus is described based on its peculiar radular teeth and genetic divergence. The internal anatomy was studied by dissections and scanning electron microscope photographs. Partial sequences of mitochondrial cytochrome oxidase c subunit I (COI) and 16S ribosomal RNA (16S) as well as nuclear histone H3 (H3) were also obtained. A phylogenetic framework for two of these three species is proposed, also including for the first time the species Paliolla templadoi and Polycera melanosticta.

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“…In addition to the ingroup specimens, a range of outgroup sequences were selected from GenBank (Wollscheid-Lengeling et al 2001;Shields 2009;Pola and Gosliner 2010;Jung et al 2014;Palomar et al 2014;Hulett et al 2015;Mahguib and Valdés 2015;Goodheart et al 2018) (see Supplementary Table S1) along with other available sequences for Doris kerguelenensis (Wilson et al 2009(Wilson et al , 2013. This was done as a robust sister group for Dorididae, across the Nudibranchia phylogeny is not yet certain (e.g.…”

Section: Specimen Collection and Preservationmentioning

confidence: 99%

One Antarctic slug to confuse them all: the underestimated diversity of

et al. 2022

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The Antarctic marine environment, although rich in life, is predicted to experience rapid and significant effects from climate change. Despite a revolution in the approaches used to document biodiversity, less than one percent of Antarctic marine invertebrates are represented by DNA barcodes and we are at risk of losing biodiversity before discovery. The ease of sequencing mitochondrial DNA barcodes has promoted this relatively ‘universal’ species identification system across most metazoan phyla and barcode datasets are currently readily used for exploring questions of species-level taxonomy. Here we present the most well-sampled phylogeny of the direct-developing, Southern Ocean nudibranch mollusc, Doris kerguelenensis to date. This study sampled over 1000 new Doris kerguelenensis specimens spanning the Southern Ocean and sequenced the mitochondrial COI gene. Results of a maximum likelihood phylogeny and multiple subsequent species delimitation analyses identified 27 new species in this complex (now 59 in total). Using rarefaction techniques, we infer more species are yet to be discovered. Some species were only collected from southern South America or the sub-Antarctic islands, while at least four species were found spanning the Polar Front. This is contrary to dispersal predictions for species without a larval stage such as Doris kerguelenensis. Our work demonstrates the value of increasing geographic scope in sampling and highlights what could be lost given the current global biodiversity crisis.

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First molecular phylogeny of the subfamily Polycerinae (Mollusca, Nudibranchia, Polyceridae)

Cited by 16 publications

References 62 publications

Integrative taxonomy reveals a cryptic species of the nudibranch genusPolycera(Polyceridae) in European waters

Integrative taxonomy reveals a cryptic species of the nudibranch genusPolycera(Polyceridae) in European waters

New contributions to the subfamily Polycerinae (Nudibranchia, Polyceridae): description of three new species and one new genus

One Antarctic slug to confuse them all: the underestimated diversity of

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