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Steinernema shori n. sp., a new entomopathogenic nematode (Nematoda: Steinernematidae) from India

Published online by Cambridge University Press:  08 September 2023

S. Soni ,
J. Patil Open the ORCID record for J. Patil [Opens in a new window] ,
V. Linga ,
P.H. Mhatre ,
M.T. Gowda ,
J. Ganguli  and
V. Půža
S. Soni
Affiliation:
Indira Gandhi Krishi Vishwavidyalaya, Raipur–492012, Chhattisgarh, India
J. Patil*
Affiliation:
Indian Council of Agricultural Research (ICAR)–National Bureau of Agricultural Insect Resources, Bengaluru–560024, Karnataka, India
V. Linga
Affiliation:
Indian Council of Agricultural Research (ICAR)–National Bureau of Agricultural Insect Resources, Bengaluru–560024, Karnataka, India
P.H. Mhatre
Affiliation:
ICAR–Central Potato Research Station, Udhagamandalam, Nilgiris–643004, Tamil Nadu, India
M.T. Gowda
Affiliation:
ICAR–Indian Institute of Vegetable Research, Varanasi–221305, Uttar Pradesh, India
J. Ganguli
Affiliation:
Indira Gandhi Krishi Vishwavidyalaya, Raipur–492012, Chhattisgarh, India
V. Půža
Affiliation:
Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branišovská 1160/31, 370 05 Ceské Budejovice, Czech Republic
*
Corresponding author: J. Patil; Email: patiljaggi@gmail.com
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Abstract

In this study, morphological and molecular features were used to identify a new Steinernema sp. from Chhattisgarh, India. Morphological and molecular features provide evidence for placing the new species into the “bicornutum” clade. The new species is characterized by the following morphological features: infective juveniles with a body length of 587 (494–671) μm; a distance from the anterior end to excretory pore of 46 (43–50) μm; a distance from anterior end to nerve ring of 72 μm (61–85 μm); and E% of 88 (77–97). The first-generation males are characterised by 27 genital papillae and very short spicules, with a length of 61 μm (53–67) μm. The SW% and GS% ratio of S. shori n. sp. are 139 (107–190) and 75 (62–90), respectively. The new species is further characterized by sequences of the internal transcribed spacer and partial 28S regions of the ribosomal DNA. Phylogenetic analyses show that S. shori n. sp. is most closely related to S. abbasi, S. kandii, and S. yirgalemense.

Keywords

Descriptionmolecular characterizationphylogenetic systematicsSteinernemataxonomyIndia
Type
Research Paper
Information
Journal of Helminthology , Volume 97 , 2023 , e72
Copyright
© The Author(s), 2023. Published by Cambridge University Press

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Footnotes

*

Joint first authors.

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