Cryptic species, life cycles, and the phylogeny of Clytia (Cnidaria: Hydrozoa: Campanulariidae)

Lindner, Alberto; Govindarajan, Annette F.; Migotto, Álvaro Esteves

doi:10.11646/zootaxa.2980.1.2

Cited by 40 publications

(52 citation statements)

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“…According to the tree-based identification, C. xiamenensis sp. nov. is most closely related to the clade containing C. hemisphaerica (two individuals, collected from the North Sea and the north-east Atlantic; see Lindner et al, 2011 andLicandro et al, 2010, respectively). diagnosis Clytia xiamenensis sp.…”

Section: Dna Barcodingmentioning

confidence: 98%

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Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Zhou

Zheng

et al. 2013

J. Mar. Biol. Ass.

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The genus Clytia is distributed worldwide, but most accepted species in this genus have been examined either only at the hydroid or medusa stage. The challenge in identifying Clytia species reflects their complex life cycles and phenotypic plasticity. In this study, molecular and morphological investigations of Clytia specimens from the coastal waters of China revealed an as yet unreported species, designated C. xiamenensis sp. nov., that was considered as conspecific to two nearly cosmopolitan species, C. hemisphaerica and C. gracilis. DNA barcoding based on partial mitochondrial cytochrome c oxidase subunit I (COI) and large subunit ribosomal RNA gene (16S) confirmed the highly distinct lineage of C. xiamenensis sp. nov. These results were corroborated by the detailed observations of its mature medusae and its colonies, which showed that C. xiamenensis sp. nov. was morphologically distinct from other species of Clytia. Thus, based on our findings, the nearly cosmopolitan distribution attributed to some species of Clytia might rather be due to the misidentification, and it is necessary to elucidate their whole life cycle in order to establish the systematic validity of all species within the genus Clytia.

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Section: Dna Barcodingmentioning

confidence: 98%

“…Yet, for most Clytia species, life cycle studies may also be problematic since the developmental relationship between polyp and medusa stages is poorly understood. As reviewed by Lindner et al (2011), only ten species have had their life cycles investigated.…”

Section: Introductionmentioning

confidence: 99%

Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Zhou

Zheng

et al. 2013

J. Mar. Biol. Ass.

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“…28a-b.-Wirtz, 2007: 14.-Lindner et al, 2011 fig. 4 Lindner et al (2011) already evidenced higly divergent cryptic taxa within the nominal species, solely with few taxa from the western Atlantic. The type locality of C. gracilis is in Norway.…”

Section: Sertularella Ornata (Fig 4c)mentioning

confidence: 99%

The hydrozoan fauna (Cnidaria: Hydrozoa) from the peaks of the Ormonde and Gettysburg seamounts (Gorringe Bank, NE Atlantic)

Moura

2015

Zootaxa

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Twenty-seven species of hydroids were collected from the peaks (35-42 meters depth) of the Gorringe Bank (NE Atlantic) during the oceanographic campaign 'LusoExpedição Olympus 2008'. Twenty-one of these species are new for the Gorringe Bank that now has published records for a total of 37 hydroid species. Lafoeina tenuis, Sertularella ellisii and Clytia hemisphaerica were the most abundant hydroid species collected. Results revealed spatial differences in the composition of species assemblages along the summits of the Gorringe, as only 14 of the species sampled were found both in the Ormonde and Gettysburg seamounts. The large density of algae at the peaks of the seamounts sustain a considerable hydrozoan diversity (23 species), but visibly inhibits the establishment of hydroids to the rocky substrates (only 2 species found). All the known hydrozoan species from the peaks of the Gorringe were exclusively collected during summer, thus sampling in other seasons may reveal further hydrozoan diversity due to seasonal patterns of growth of algae and hydroids. Nevertheless, the reasonably high levels of hydrozoan biodiversity demonstrated only from a small portion the summits of the Gorringe, corroborate its seamounts as 'biodiversity hotspots'. In agreement with previous investigations with shallow-water molluscs and sponges, the shallow-water hydroid fauna of the Gorringe revealed greater biogeographical affinities with the Mediterranean and mainland Portugal. This is the first report of Eudendrium armatum outside of the Mediterranean.

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“…; Cartwright & Nawrocki ; Lindner et al . ), highlighting the need for a systematic revision of this cnidarian class.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic relationships within Aglaopheniidae (Cnidaria, Hydrozoa) reveal unexpected generic diversity

et al. 2015

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International audienceMorphology can be misleading in the representation of phylogenetic relationships, especially in simple organisms like cnidarians and particularly in hydrozoans. These suspension feeders are widely distributed in many marine ecosystems, and the family Aglaopheniidae Marktanner-Turneretscher, 1890 is among the most diverse and visible, especially on tropical coral reefs. The taxonomy of this family is based on morphological characters with emphasis on reproductive structures for the identification of genera. This study is the most comprehensive molecular phylogeny of the Aglaopheniidae to date, including six genera and 38 species, of which 13 were investigated for the first time and sampled on tropical coral reefs throughout the Indo-Pacific region. For newly sampled individuals, we sequenced the 16S rRNA, the nuclear locus comprising the complete ITS1-5.8S rRNA gene-ITS2 and the first intron of the calmodulin nuclear gene. Phylogenetic analyses of the data revealed and confirmed a general polyphyly, or doubtful monophyly, of all sampled genera in tropical regions based on both the mitochondrial and nuclear markers. Our results revealed that several morphological characters used today are unsuited to resolve phylogenetic relationships between species and genera, as well as the high phyletic diversity within this family. Future revision of the classification of this family will require extensive geographic sampling and the use of an integrative approach

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Cryptic species, life cycles, and the phylogeny of Clytia (Cnidaria: Hydrozoa: Campanulariidae)

Cited by 40 publications

References 0 publications

Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

Detection of a newClytiaspecies (Cnidaria: Hydrozoa: Campanulariidae) with DNA barcoding and life cycle analyses

The hydrozoan fauna (Cnidaria: Hydrozoa) from the peaks of the Ormonde and Gettysburg seamounts (Gorringe Bank, NE Atlantic)

Phylogenetic relationships within Aglaopheniidae (Cnidaria, Hydrozoa) reveal unexpected generic diversity

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