The first phylogenetic reconstruction of Nippostrongylinae (Nematoda: Heligmonellidae) reveals 3 new genera, the polyphyletic nature of Carolinensis and Vexillata, and identifies 5 clades with varying associations with mammals

The Nippostrongylinae is a group of strongylid nematodes that includes species typically associated with coprophagous mammals. In the New World, the taxon is represented by 82 species within 11 genera. To evaluate the phylogenetic signal from these characteristics, we use genetic data to reconstruct the first phylogeny for the Nippostrongylinae using nuclear and mitochondrial genes and include representatives of the most common and diverse genera. The reconstructed phylogeny features five distinct clades and allows us to identify three non-monophyletic taxa including Carolinensis, Vexillata and Hassalstrongylus. From these, Carolinensis s. l. is divided into four genera including Carolinensis, Boreostrongylus, Neoboreostrongylus n. gen. and Tepalcuanema n. gen. Stunkardionema is resurrected to include Vexillata noviberiae and Hassalstrongylus is divided into two, establishing Lovostrongylus n. gen. to include species that are closely related to Guerrerostrongylus and Trichofreitasi..., Datamatrix to reconstruct the phylogenetic relationships of the Nippostrongylinae in the New World. The datamatrix includes fragments of mitochondrial and nuclear gene regions. Mitochondrial genes include partial sequences of Cox1. Nuclear regions includes a fragment of ITS1, 5.8S ribosomal, ITS2, and a fragment of 28S ribosomal.  
Data were collected from Argentina, Canada, Ecuador, French Guiana, Mexico, Paraguay and the United States. Ancillary sequences were obtained from GenBank.  The phylogeny is used to propose a redefinition of several genera that were defined based on homoplastic characters.  Files are in nexus format, and there is a table to correlate the proposed taxon names, GenBank numbers and OTUs used by authors.
For ITS and 28S, the alignment was performed using MAFFT software for secondary structure alignment using default QINSI settings (Katoh & Standley, 2013).optimality criteria of Maximum Likelihood using RAXML with 1,000 bootstrap replicates. Bra..., # The first phylogenetic reconstruction of Nippostrongylinae (Nematoda: Heligmonellidae) reveals 3 new genera, the polyphyletic nature of Carolinensis and Vexillata, and identifies 5 clades with varying associations with mammals

Dataset DOI: [10.5061/dryad.p2ngf1w3f](10.5061/dryad.p2ngf1w3f)

## Description of the data and file structure

This dataset contains original sequences generated through Sanger chemistry using specimens collected from across the world. The matrices are made available so researchers can replicate and build upon the phylogeny proposed for the Nippostrongylinae of the New World. This phylogeny is available in  Jiménez et al. (in review). Parasitology.  Data were collected from Argentina, Canada, Ecuador, French Guiana, Mexico, Paraguay, and the United States. Ancillary sequences were obtained from GenBank.  The phylogeny is used to propose a redefinition of several genera that were defined based on homoplastic characters.  Files are in NEXUS format, and there is ...,