<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>A new cyst-forming nematode, <italic>Heterodera microulae</italic> sp. n., was isolated from the roots and rhizosphere soil of <italic>Microula sikkimensis</italic> in China. Morphologically, the new species is characterized by lemon-shaped body with an extruded neck and obtuse vulval cone. The vulval cone of the new species appeared to be ambifenestrate without bullae and a weak underbridge. The second-stage juveniles have a longer body length with four lateral lines, strong stylets with rounded and flat stylet knobs, tail with a comparatively longer hyaline area, and a sharp terminus. The phylogenetic analyses based on ITS-rDNA, D2-D3 of 28S rDNA, and <italic>COI</italic> sequences revealed that the new species formed a separate clade from other <italic>Heterodera</italic> species in <italic>Goettingiana</italic> group, which further support the unique status of <italic>H. microulae</italic> sp. n. Therefore, it is described herein as a new species of genus <italic>Heterodera</italic>; additionally, the present study provided the first record of <italic>Goettingiana</italic> group in Gansu Province, China.</p>
</abstract>

A new cyst-forming nematode, Heterodera microulae sp. n., was isolated from the roots and rhizosphere soil of Microula sikkimensis in China. Morphologically, the new species is characterized by lemon-shaped body with an extruded neck and obtuse vulval cone. The vulval cone of the new species appeared to be ambifenestrate without bullae and a weak underbridge. The second-stage juveniles have a longer body length with four lateral lines, strong stylets with rounded and flat stylet knobs, tail with a comparatively longer hyaline area, and a sharp terminus. The phylogenetic analyses based on ITS-rDNA, D2-D3 of 28S rDNA, and COI sequences revealed that the new species formed a separate clade from other Heterodera species in Goettingiana group, which further support the unique status of H. microulae sp. n. Therefore, it is described herein as a new species of genus Heterodera; additionally, the present study provided the first record of Goettingiana group in Gansu Province, China.

Description of <italic>Heterodera microulae</italic> sp. n. (Nematoda: Heteroderinae) from China – a new cyst nematode in the <italic>Goettingiana</italic> group

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Description of  sp. n. (Nematoda: Heteroderinae) from China – a new cyst nematode in the  group

running-head

A new cyst-forming nematode, Heterodera microulae sp. n., was isolated from the roots and rhizosphere soil of Microula sikkimensis in China. Morphologically,...

Description of Heterodera microulae sp. n. (Nematoda: Heteroderinae) from China – a new cyst nematode in the Goettingiana group

Publié en ligne: 24 nov. 2020

Pages: 1 - 16

DOI: https://doi.org/10.21307/jofnem-2020-097

Mots clés
group, Morphology, New species, Phylogeny, Taxonomy

© 2020 Wenhao Li et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Description of Heterodera microulae sp. n. (Nematoda: Heteroderinae) from China – a new cyst nematode in the Goettingiana group

Publié en ligne: 24 nov. 2020

Pages: 1 - 16

DOI: https://doi.org/10.21307/jofnem-2020-097

Mots clésgroup, Morphology, New species, Phylogeny, Taxonomy

© 2020 Wenhao Li et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
group, Morphology, New species, Phylogeny, Taxonomy