Molecular and morphological characterization of the spiral nematode Helicotylenchus oleae Inserra, Vovlas & Golden, 1979 (Nematoda: Hoplolaimidae) in the Mediterranean Basin
The spiral nematode Helicotylenchus oleae is an ectoparasite of olive roots and is distributed in some countries in the Mediterranean Basin. In this study, we provided morphological and molecular characterisation of topotypes from southern Italy, as well as of several other populations from Crete (Greece) and Spain. Correct identification of plant-parasitic nematode species is essential to establish appropriate control strategies and for preventing their spread to other areas. Helicotylenchus oleae is reported for the first time in Greece (Crete). Integrative morphometric and molecular data for H. oleae populations using D2-D3 expansion segments of 28S rDNA, ITS-rDNA, and the cytochrome c oxidase subunit 1 (coxI), were in agreement with the original descriptions of the species, except for some minor differences, which may be a result of intraspecific variability. The phylogenetic relationships of this species with other representatives of Helicotylenchus spp. using D2-D3 expansion segments and the ITS-rRNA region was studied showing a low intraspecific diversity for H. oleae species. For the first time, coxI molecular data is obtained for the genus Helicotylenchus.
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Springer Nature
2018-04
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| Subjects: | Bayesian inference, CoxI, D2-D3, Its, New record, Phylogeny, rDNA, Taxonomy, |
| Online Access: | http://hdl.handle.net/10261/179620 http://dx.doi.org/10.13039/100007652 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011011 |
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