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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Species delimitation integrative approach reveals three new species in the Nemertopsis bivittata complex

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Author(s):
Mendes, Cecili B. [1] ; Norenburg, Jon L. [2] ; Andrade, Sonia C. S. [1]
Total Authors: 3
Affiliation:
[1] IB USP, Dept Genet & Biol Evolut, Lab Diversidade Genom, 277 Matao St, Sao Paulo, SP - Brazil
[2] Smithsonian Inst, Natl Museum Nat Hist, 10th St & Constitut Ave NW, Washington, DC 20560 - USA
Total Affiliations: 2
Document type: Journal article
Source: INVERTEBRATE SYSTEMATICS; v. 35, n. 6 AUG 2021.
Web of Science Citations: 0
Abstract

The presence of cryptic species is fairly frequent in many invertebrate groups and even more so among invertebrates with simple morphology, such as nemerteans. Consequently, the use of molecular methods for species delimitation has become a needed tool to complement morphological analyses to better recognise such species. Nemertopsis bivittata is one example of species with subtle morphological variation, but ample geographic distribution, being a good candidate for a species complex study. Here we applied two mitochondrial genes, and 2903 single nucleotide polymorphism (SNP) variants in addition to morphological characters to investigate the presence of cryptic species among specimens previously identified as N. bivittata along the Brazilian Coast. To do so, specimens were collected at 15 different sites in the north-east, south-east and southern regions. Three new species of Nemertopsis are described based on morphological and molecular analyses: Nemertopsis caete sp. nov., Nemertopsis pamelaroeae sp. nov. and Nemertopsis berthalutzae sp. nov. The species N. pamelaroeae and N. berthalutzae present broad distributions from north-east to south-east; N. caete, however, is restricted to the north-east coast. This is the first study to use this combined approach in nemerteans and shows the advantages of integrating genomic markers with classical taxonomy, and applying objective approaches to delimiting species as independently evolving entities. (AU)

FAPESP's process: 15/20139-9 - Seascape genetics and evaluation of expression profiles on marine invertebrates on Brazilian Southeast coast
Grantee:Sónia Cristina da Silva Andrade
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 16/20005-5 - Nemertopsis bivittata (Nemertea) e Perinereis ponteni (Polychaeta:Annelida): validity of species, gene flow and genetic diversity on Brazilian coast
Grantee:Cecili Barrozo Mendes
Support type: Scholarships in Brazil - Doctorate