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Título

Mitochondrial genome diversity in dagger and needle nematodes (Nematoda: Longidoridae)

AutorPalomares Rius, Juan E. ; Cantalapiedra-Navarrete, C. ; Archidona-Yuste, Antonio; Blok, Vivian C.; Castillo, Pablo
Fecha de publicación2-feb-2017
EditorSpringer Nature
CitaciónScientific Reports 7: 41813 (2017)
ResumenDagger and needle nematodes included in the family Longidoridae (viz. Longidorus, Paralongidorus, and Xiphinema) are highly polyphagous plant-parasitic nematodes in wild and cultivated plants and some of them are plant-virus vectors (nepovirus). The mitochondrial (mt) genomes of the dagger and needle nematodes, Xiphinema rivesi, Xiphinema pachtaicum, Longidorus vineacola and Paralongidorus litoralis were sequenced in this study. The four circular mt genomes have an estimated size of 12.6, 12.5, 13.5 and 12.7 kb, respectively. Up to date, the mt genome of X. pachtaicum is the smallest genome found in Nematoda. The four mt genomes contain 12 protein-coding genes (viz. cox1-3, nad1-6, nad4L, atp6 and cob) and two ribosomal RNA genes (rrnL and rrnS), but the atp8 gene was not detected. These mt genomes showed a gene arrangement very different within the Longidoridae species sequenced, with the exception of very closely related species (X. americanum and X. rivesi). The sizes of non-coding regions in the Longidoridae nematodes were very small and were present in a few places in the mt genome. Phylogenetic analysis of all coding genes showed a closer relationship between Longidorus and Paralongidorus and different phylogenetic possibilities for the three Xiphinema species.
Versión del editorhttp://dx.doi.org/10.1038/srep41813
URIhttp://hdl.handle.net/10261/166635
DOI10.1038/srep41813
E-ISSN2045-2322
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