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Identification for Rotylenchus spp.

Please fill in your matrix codes following the matrix code of Castillo and Vovlas (2005):

A) Lip annulation:
- 1: absent or smooth labial region
- 2: labial region with 2-3 annuli
- 3: labial region with four annuli
- 4: labial region with five annuli
- 5: labial region with six annuli
- 6: labial region with 7-8 annuli
- 7: labial region with 9-10 annuli
B) Labial region shape:
- 1: labial region hemispherical
- 2: labial region rounded
- 3: labial region conoid
- 4: labial region truncate
C) Lateral field areolation:
- 1: areolated only in pharyngeal region
- 2: areolated in pharyngeal region and irregularly areolated at mid-body
- 3: areolated in pharyngeal region and incompletely areolated at mid-body
- 4: areolated in pharyngeal region and near phasmids
- 5: areolated along whole length of body except at tail region
- 6: areolated along whole length of body including the tail region
- 7: incompletely areolated along whole body
D) Body longitudinal striations:
- 1: punctated along body annuli
- 2: longitudinally striated in pharyngeal region
- 3: longitudinally striated over whole body
- 4: without body striations
E) Stylet length:
- 1: stylet shorter than 30 micrometer
- 2: stylet between 30 and 35.9 micrometer
- 3: stylet between 36 and 40.9 micrometer
- 4: stylet longer than 41 micrometer
F) Dorsal pharyngeal gland outlet to stylet base:
- 1: DGO less than 2 micrometer
- 2: DGO between 2 and 6.9 micrometer
- 3: DGO between 7 and 12 micrometer
- 4: DGO >12 micrometer
G) Dorsal pharyngeal gland overlapping:
- 1: pharyngeal gland overlapping less than 5 micrometer
- 2: pharyngeal gland overlapping by 6-20.9 micrometer
- 3: pharyngeal gland overlapping by 21-30.9 micrometer
- 4: pharyngeal gland overlapping by 31-40.9 micrometer
- 5: pharyngeal gland overlapping by > 41 micrometer
H) Tail shape:
- 1: hemispherical
- 2: rounded
- 3: conoid
- 4: pointed
- 5: with ventral projection
I) Ratio V:
- 1: ratio V < 50%
- 2: ratio V of 50-70%
- 3: ratio V > 70%
J) Presence of males:
- 1: males present
- 2: males absent
K) Phasmid position:
- 1: well anterior to level of anus (> five annuli anterior to anus)
- 2: at level of anus (from five annuli anterior to five annuli posterior to anus)
- 3: well posterior to level of anus (> five annuli posterior to anus)





Expected Bray-Curtis similarity: %



Note: feature D in matrix code for R. goodeyi has been changed from D4-->D2 due to the mistake of Castillo and Vovlas in coding

Contact: tien.quelampb@gmail.com

Please cite:
Nguyen, T. Huu., Quang, P. Trinh., Couvreur, M., Singh, R. Phougeishangbam., Decraemer, W. and Bert, W. 2019. Molecular and morphological characterisation of a new root-lesion nematode, Pratylenchus horti n. sp. (Tylenchomorpha: Pratylenchidae) from Ghent University Botanical Garden
Nguyen, T. Huu., Quang, P. Trinh., Couvreur, M., Singh, R. Phougeishangbam., Decraemer, W. and Bert, W. 2019. Description of Rotylenchus rhomboides n. sp. and a Belgian population of Rotylenchus buxophilus (Tylenchomorpha: Hoplolaimidae). DOI: 10.21307/jofnem-2019-023