MtDNA species-level phylogeny and delimitation support significantly underestimated diversity and endemism in the largest Neotropical cichlid genus (Cichlidae: Crenicichla)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F21%3A43902948" target="_blank" >RIV/60076658:12310/21:43902948 - isvavai.cz</a>
Result on the web
<a href="https://peerj.com/articles/12283/" target="_blank" >https://peerj.com/articles/12283/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7717/peerj.12283" target="_blank" >10.7717/peerj.12283</a>
Alternative languages
Result language
angličtina
Original language name
MtDNA species-level phylogeny and delimitation support significantly underestimated diversity and endemism in the largest Neotropical cichlid genus (Cichlidae: Crenicichla)
Original language description
Crenicichla is the largest and most widely distributed genus of Neotropical cichlids. Here, we analyze a mtDNA dataset comprising 681 specimens (including Teleocichla, a putative ingroup of Crenicichla) and 77 out of 105 presently recognized valid species (plus 10 out of 36 nominal synonyms plus over 50 putatively new species) from 129 locations in 31 major river drainages throughout the whole distribution of the genus in South America. Based on these data we make an inventory of diversity and highlight taxa and biogeographic areas worthy of further sampling effort and conservation protection. Using three methods of molecular species delimitation, we find between 126 and 168 species-like clusters, i.e., an average increase of species diversity of 65-121% with a range of increase between species groups. The increase ranges from 0% in the Missioneira and Macrophthama groups, through 25-40% (Lacustris group), 50-87% (Reticulata group, Teleocichla), 68-168% (Saxatilis group), 125-200% (Wallacii group), and 158-241% in the Lugubris group. We found a high degree of congruence between clusters derived from the three used methods of species delimitation. Overall, our results recognize substantially underestimated diversity in Crenicichla including Teleocichla. Most of the newly delimited putative species are from the Amazon-Orinoco-Guiana (AOG) core area (Greater Amazonia) of the Neotropical region, especially from the Brazilian and Guiana shield areas of which the former is under the largest threat and largest degree of environmental degradation of all the Amazon.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
<a href="/en/project/GA19-20012S" target="_blank" >GA19-20012S: Genomics of replicated cichlid diversification in rivers: The role of hybridization in adaptive radiation of Neotropical pike cichlids (Crenicichla)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PeerJ
ISSN
2167-8359
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
NOV 9 2021
Country of publishing house
GB - UNITED KINGDOM
Number of pages
29
Pages from-to
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UT code for WoS article
000718285700010
EID of the result in the Scopus database
2-s2.0-85119042763