Editing Daphnia (section)

==Systematics and evolution==
{{main|List of Daphnia species}}
''Daphnia'' is a large genus – comprising over 200 species – belonging to the cladoceran family Daphniidae.<ref name="Kotov"/> It is subdivided into several subgenera (''[[Daphnia (Daphnia)|Daphnia]]'', ''[[Daphnia occidentalis|Australodaphnia]]'', ''[[Ctenodaphnia]]''), but the division has been controversial and is still in development. Each subgenus has been further divided into a number of [[species complex]]es. The understanding of species boundaries has been hindered by phenotypic plasticity, hybridization, intercontinental introductions, and poor taxonomic descriptions.<ref>{{cite journal |author1=Niles Lehman |author2=Michael E. Pfrender |author3=Phillip A. Morin |author4=Teresa J. Crease |author5=Michael Lynch |year=1995 |title=A hierarchical molecular phylogeny within the genus ''Daphnia'' |journal=[[Molecular Phylogenetics and Evolution]] |pmid=8747296 |volume=4 |issue=4 |pages=395–407 |doi=10.1006/mpev.1995.1037|bibcode=1995MolPE...4..395L }}</ref><ref>{{cite journal|author1=Derek J. Taylor |author2=Paul D. N. Hebert |author3=John K. Colbourne |year=1996 |title=Phylogenetics and evolution of the ''Daphnia longispina'' group (Crustacea) based on 12S rDNA sequence and allozyme variation |journal=[[Molecular Phylogenetics and Evolution]] |volume=5 |pmid=8744763 |issue=3 |pages=495–510 |url=http://www.buffalo.edu/~djtaylor/publications_files/Tayloretal1996.pdf |archive-url=https://wayback.archive-it.org/all/20070418040641/http://www.buffalo.edu/~djtaylor/publications_files/Tayloretal1996.pdf |url-status=dead |archive-date=2007-04-18 |doi=10.1006/mpev.1996.0045 |bibcode=1996MolPE...5..495T }}</ref><ref>{{cite journal |author1=Sarah J. Adamowicz |author2=Paul D. N. Hebert |author3=María Christina Marinone |year=2004 |title=Species diversity and endemism in the ''Daphnia'' of Argentina: a genetic investigation |journal=[[Zoological Journal of the Linnean Society]] |volume=140 |pages=171–205 |doi=10.1111/j.1096-3642.2003.00089.x |issue=2|doi-access=free |hdl=20.500.12110/paper_00244082_v140_n2_p171_Adamowicz |hdl-access=free }}</ref> Modern members of ''Daphnia'' belonging to the subgenera ''Daphnia'' and ''Ctenodaphnia'' are known since the [[Cretaceous]], though the genus likely originated prior to the beginning of the Cretaceous.<ref>{{Cite journal|last1=Kotov|first1=Alexey A|last2=Taylor|first2=Derek J|date=19 May 2011|title=Mesozoic fossils (>145 Mya) suggest the antiquity of the subgenera of Daphniaand their coevolution with chaoborid predators|journal=BMC Evolutionary Biology|language=en|volume=11|issue=1|pages=129|doi=10.1186/1471-2148-11-129|issn=1471-2148|pmc=3123605|pmid=21595889 |bibcode=2011BMCEE..11..129K |doi-access=free }}</ref><ref>{{Cite journal|last1=Van Damme|first1=Kay|last2=Kotov|first2=Alexey A.|date=December 2016|title=The fossil record of the Cladocera (Crustacea: Branchiopoda): Evidence and hypotheses|url=https://linkinghub.elsevier.com/retrieve/pii/S0012825216303701|journal=Earth-Science Reviews|language=en|volume=163|pages=162–189|doi=10.1016/j.earscirev.2016.10.009|bibcode=2016ESRv..163..162V}}</ref> There are numerous poorly studied and cryptic species among crustaceans of the genus ''Daphnia''.<ref>
{{ Cite journal | year = 2021 | publisher = [[John Wiley & Sons Ltd]] | issue = 6 | volume = 30 | department = INVITED REVIEWS AND SYNTHESES | first2 = Melania | first1 = Tiffany | last2 = Cristescu | last1 = Chin | pages = 1398–1418 | title = Speciation in ''Daphnia'' | journal = [[Molecular Ecology]] | issn = 0962-1083 | doi = 10.1111/mec.15824 | pmid = 33522056 | bibcode = 2021MolEc..30.1398C | s2cid = 225026378| doi-access = free }}

This review cites this research.

{{Cite journal |last1=Kotov |first1=Alexey A. |last2=Garibian |first2=Petr G. |last3=Bekker |first3=Eugeniya I. |last4=Taylor |first4=Derek J. |last5=Karabanov |first5=Dmitry P. |date=2020-06-17 |title=A new species group from the ''Daphnia curvirostris'' species complex (Cladocera: Anomopoda) from the eastern Palaearctic: taxonomy, phylogeny and phylogeography |journal=[[Zoological Journal of the Linnean Society]] |volume=191 |issue=3 |pages=772–822 |doi=10.1093/zoolinnean/zlaa046 |issn=0024-4082 |doi-access=free}}
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