The DOI matches its Crossref record; 59 of the 62 references it cites were found in a registry or an index.
Phylogeny of Medusozoa and the evolution of cnidarian life cycles
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Abstract To investigate the evolution of cnidarian life cycles, data from the small subunit of the ribosome are used to derive a phylogenetic hypothesis for Medusozoa. These data indicate that Cnidaria is monophyletic and composed of Anthozoa and Medusozoa. While Cubozoa and Hydrozoa are well supported clades, Scyphozoa appears to be paraphyletic. Stauromedusae is possibly the sister group of either Cubozoa or all other medusozoans. The phylogenetic results suggest that: the polyp probably preceded the medusa in the evolution of Cnidaria; within Hydrozoa, medusa development involving the entocodon is ancestral; within Trachylina, the polyp was lost and subsequently regained in the parasitic narcomedusans; within Siphonophorae, the float originated prior to swimming bells; stauromedusans are not likely to be descended from ancestors that produced medusae by strobilation; and cubozoan polyps are simplified from those of their ancestors, which possessed polyps with gastric septa and four mesogleal muscle bands and peristomial pits.
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“The absence of precambrian planktonic metazoans is consistent with our Early Cambrian estimate for the origin of the last common ancestor of living cnidarians, a population of animals whose life cycle lacked a medusa stage and thus was entirely benthic (49).”
From Estimating metazoan divergence times with a molecular clock (2004) · cites this paper as [49]
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“Based on morphological and 18S ribosomal RNA data, the Anthozoa appear to be the most ancestral class within the phylum (Bridge et al., 1995;Collins, 2002).”
From Evolutionary aspects of developmentally regulated helix-loop-helix transcription factors in striated muscle of jellyfish (2003) · cites this paper as Collins, 2002
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Cites
Hall, T. A. (1999) · Nucleic Acids Symposium Series · doi:10.14601/phytopathol_mediterr-14998u1.29 · Cited by 38,156
MODELTEST: testing the model of DNA substitution.
Posada, D., & Crandall, K. A. (1998) · Bioinformatics · doi:10.1093/bioinformatics/14.9.817 · Cited by 19,820
PAUP^* : Phylogenetic Analysis Using Parsimony (and other methods) 4.0b8
Swofford, D. L. (2001) · Cited by 12,789
The characterization of enzymatically amplified eukaryotic 16S-like rRNA-coding regions
Medlin, L. K., Elwood, H. J., Stickel, S. K., & Sogin, M. L. (1988) · Gene · doi:10.1016/0378-1119(88)90066-2 · Cited by 3,041
THE LIMITS OF AMINO ACID SEQUENCE DATA IN ANGIOSPERM PHYLOGENETIC RECONSTRUCTION
Bremer, K. (1988) · Evolution · doi:10.1111/j.1558-5646.1988.tb02497.x · Cited by 2,480
Animal evolution: interrelationships of the living phyla
(2012) · Choice Reviews Online · doi:10.5860/choice.50-1469 · Cited by 1,041
Recent Advances in Our Knowledge of the Myxozoa
Kent, M. L., Andree, K. B., Bartholomew, J. L., El‐Matbouli, M., Desser, S. S., Devlin, R. H., Feist, S. W., Hedrick, R. P., HOFFMANN, R. W., Khattra, J. S., et al. (2001) · Journal of Eukaryotic Microbiology · doi:10.1111/j.1550-7408.2001.tb00173.x · Cited by 628
Peterson, K. J., & Eernisse, D. J. (2001) · Evolution & Development · doi:10.1046/j.1525-142x.2001.003003170.x · Cited by 529
Medina, M., Collins, A. G., Silberman, J. D., & Sogin, M. L. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.171316998 · Cited by 395
Self-citationSexual reproduction, development and larval biology in scleractinian corals
Fadlallah, Y. H. (1983) · Coral Reefs · doi:10.1007/bf00336720 · Cited by 395
Research works printed but not linked: 5
- Bouillon, 2000, Phylogeny and classification of Hydroidomedusae, Thal. Salent., 24, 1
- Brooks, 1886, Life history of the Hydromedusae. A discussion of the Medusae and of the significance of metagenesis, Mem. Boston Soc. Nat. Hist., 3, 359
- Kiderlen, 1937, Die conularien. Uber Bau und Leben der ersten Scyphozoa, Neues Jahrb Fur Mineralogie, Geologie, Palaontologie, 77, 113
- Leloup, 1955, Siphonophores, Rep. Scient. Res. M. Sars N. Atlant. Deep Sea Exped., 5, 1
- Uchida, 1926, The anatomy and development of rhizostome medusa, Mastigias papua L. Agassiz, with observations on the phylogeny of Rhizostomae, J. Fac. Sci. Univ. Tokyo, 1, 45
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Kreiser, B. R. (2004) · doi:10.21236/ada483487
“We chose to first examine 18S rRNA as it has been the molecule of choice for many molecular systematic studies within and among the major groups of cnidarians (e.g. Bernston et al. 1999, 2001; Collins 2002).”
MethodRaible, F., & Steinmetz, P. R. H. (2010) · Springer eBooks · doi:10.1007/978-90-481-8639-6_5
Schmidt‐Rhaesa, A. (2007) · Oxford University Press eBooks · doi:10.1093/acprof:oso/9780198566687.003.0013
Schmidt‐Rhaesa, A. (2007) · Oxford University Press eBooks · doi:10.1093/acprof:oso/9780198566687.003.0012
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“Dentro de Medusozoa, a classe Scyphozoa é uma das quatro que compõem o subfilo (Collins 2002; Marques and Collins 2004; Collins et al. 2006) possuindo 241 morfoespécies descritas (Mianzan and Cornelius 1999; Daly et al. 2007; Jarms & Morandini, 2019).”
BackgroundInfluential(2007) · Oxford University Press eBooks · doi:10.1093/acprof:oso/9780198566687.002.0006
(2007) · Oxford University Press eBooks · doi:10.1093/acprof:oso/9780198566687.002.0003
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“The orientation of sail of this present specimen is in the northwest to the southeast direction which indicates the drift of this species in the left direction with the wind pattern (Collins 2002; Osis 2003).”
BackgroundAnálise comparada das estruturas gonadais de Cubozoa no contexto da evolução de Medusozoa (Cnidaria)
Rodríguez, J. G. (2024) · Digital Library of Theses and Dissertations (Universidade de São Paulo) · doi:10.11606/t.41.2024.tde-13052024-104419
Global Genomics of Man-O'-War (Physalia) Reveals Ocean Surface BiodiversityPreprint
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Prudkovsky, A. A. (2025) · Hydrobiologia · doi:10.1007/s10750-025-05973-4
“Many marine invertebrates have plank-tonic larvae, and medusozoan cnidarians have plank-tonic medusae (Collins, 2002; Young et al., 2002).”
Gamero-Mora, E., Osorio, I. A. C., Celis, L., & Mendoza-Becerril, M. A. (2026) · Biodiversity Data Journal · doi:10.3897/bdj.14.e182574
Toshino, S., Minemizu, R., & Kaneshiro, S. (2026) · Plankton and Benthos Research · doi:10.3800/pbr.21.63
Cilia-driven surface currents characterize specific cnidarian groups and lifecycle stages
Koch, T., Araslanova, K. R., Bouderlique, T., Fetisov, A., Link, O., Klimovich, A. V., Mičić, M., Mičić, K., Boström, J., Frade, P. R., et al. (2026) · Communications Biology · doi:10.1038/s42003-026-09827-0
“The remarkable morphological diversity observed within cnidarians can be mainly attributed to the pre-senceoftwodistinctbodyplans:thesessilepolyp,whichattachesitselftothe substrateattheseabed,andthefree-swimming,umbrella-shapedmedusa 3 .”
Pratlong, M. (2016) · theses.fr (ABES) · doi:10.70675/2f48e6ddza822z455eza9d5zf10fc679949c
“These relationships correspond to the most usual phylogeny of cnidarians [68, 311] although two recent papers uncovered a closer relationship of octocorals with medusozoans rather than with hexacorals [229, 168].”
ResultBolstad, K., & Babonis, L. S. (2026) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.64898/2026.03.31.715438
“Staurozoans represent an unusual lineage of medusozoans that completely lack the pelagic medusa stage [13].”
Modèles et algorithmes pour l'évolution biologique
Chabrol, O. (2017) · theses.fr (ABES) · doi:10.70675/23889726zfc97z4d77zbbb6z436783a7cb06
Condamine, T. (2018) · theses.fr (ABES) · doi:10.70675/7bd509e2z4d99z495czafd0z1adf840e0228
“Les analyses de Collins (2002), également sur l’ADN de la petite sousunité ribosomale, mettent aussi en évidence cette dichotomie, en plus d’asseoir la monophylie des cubozoaires.”
BackgroundBases cellulaires et moléculaires de la régénération chez la méduse Clytia hemisphaerica
Péron, S. (2019) · theses.fr (ABES) · doi:10.70675/ffef6377z3968z4ab7zb677z254b4877f6a0 · Cited by 1
Molecular insight into ion transport for calcification in symbiotic and non-symbiotic corals
Capasso, L. (2021) · theses.fr (ABES) · doi:10.70675/341d37d1z90c5z4da7z8f7az77049c4699f4
Comparison of cell types across life cycle stages of the hydrozoan Clytia hemisphaerica
Ferraioli, A. (2022) · theses.fr (ABES) · doi:10.70675/3d74eba7z8f43z44c7zb7bbz37a96dd78d08 · Cited by 1
Structure et développement des muscles striés de Pelagia noctiluca
Salmon, B. (2025) · theses.fr (ABES) · doi:10.70675/e88112cez654fz4c1bz942ezafdc9e54973b
Souza, J. T., de Oliveira, A. D., Fonseca, C., Mendonça, J. D. O., Rondón, N. D. V. F., de Castro, A. P., Rios-Netto, A. D. M., Borghi, L., & Filho, J. G. M. (2026) · SSRN Electronic Journal · doi:10.2139/ssrn.6591899
Comparative gonadal histology reveals complex reproductive traits in Cubozoa (Cnidaria: Medusozoa)
García‐Rodríguez, J., Ames, C. L., Cunha, A. F., Jaimes‐Becerra, A., Fonfría, E. S., Bordehore, C., Collins, A. G., & Marques, A. C. (2026) · Frontiers in Ecology and Evolution · doi:10.3389/fevo.2026.1825604
“…of the subphylum Medusozoa (Hydrozoa, Scyphozoa, Staurozoa, and Cubozoa) (Marques and Collins, 2004) exhibit metagenetic life cycles (Campbell, 1974; Collins, 2002; Müller and Leitz, 2002; Morandini et al., 2016), with sexual reproduction occurring during the medusa stage (Collins, 2002; Marques…”
Self-citationDawson, M. N., Oatley, G., Sinclair, E., Aunin, E., Gettle, N., dos Santos, C. I., Paulini, M., Niu, H., McKenna, V., O’Brien, R. L., et al. (2026) · Wellcome Open Research · doi:10.12688/wellcomeopenres.27239.1
“…relatively basal in the clade, close to Linuchidae, this would support the inference that a polyp stage is plesiomorphic for Coronatae, consistent with ancestral state reconstruction for most medusozoans, and that polyps ancestrally reproduce asexually through polydisc strobilation (Collins, 2002).”
Laflamme (2004) · doi:10.1666/0022-3360(2004)078
Self-citation
Metadata
- Authors
- Collins, A. G.
- Affiliations
- University of California, Berkeley (US)
- Corresponding author
- Collins, A. G.
- ORCID
- Collins, A. G.
- Venue
- Journal of Evolutionary Biology
- Publisher
- Oxford University Press (OUP)
- Published
- 2002-05-01
- Volume
- 15
- Issue
- 3
- Pages
- 418-432
- ISSN
- 1010-061X (ISSN-L)
- 1420-9101
- OpenAlex
- W2098787235
- Cited by
- 355
- References
- 62
- Citations by year
- 2026: 11 · 2025: 8 · 2024: 9 · 2023: 12 · 2022: 16 · 2021: 10 · 2020: 6 · 2019: 13 · 2018: 15 · 2017: 19 · 2016: 21 · 2015: 27 · 2014: 15 · 2013: 9 · 2012: 7
- FWCI
- 17.71
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Evolutionary Biology (publishedVersion)
- Funders
- National Science Foundation (9814845)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Marine Invertebrate Physiology and Ecology
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Protist diversity and phylogeny
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Invertebrate Taxonomy and Ecology
- Keywords
- Medusozoa, Anthozoa, Cubozoa, Hydrozoa, Scyphozoa, Siphonophorae, strobilation, monophyly
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