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A Very Rare Malformation Affecting the Female Genital System of one Labronema Specimen (Dorylaimida, Dorylaimidae) Cover

A Very Rare Malformation Affecting the Female Genital System of one Labronema Specimen (Dorylaimida, Dorylaimidae)

Open Access
|Apr 2019

Figures & Tables

Figure 1

Light micrographs of Labronema sp. A–E and G–I, abnormal female; F, normal female. A: anterior region in median lateral view; B: posterior genital branch (arrow pointing at the supposed position of vulva); C, E: genital system (arrow pointing at the supposed position of vulva); F: posterior genital branch; G: lip region in lateral surface view; H: entire body; I: caudal region (arrow pointing at anus). (Scale bars: A, G, I = 10 µm; B, D = 50 µm; C, E, F = 100 µm).
Light micrographs of Labronema sp. A–E and G–I, abnormal female; F, normal female. A: anterior region in median lateral view; B: posterior genital branch (arrow pointing at the supposed position of vulva); C, E: genital system (arrow pointing at the supposed position of vulva); F: posterior genital branch; G: lip region in lateral surface view; H: entire body; I: caudal region (arrow pointing at anus). (Scale bars: A, G, I = 10 µm; B, D = 50 µm; C, E, F = 100 µm).

Morphometrics of Labronema sp_ from Spain_ Measurements in µm, except L in mm, and in the form: average ± sd (range)_

Character♀*11♀♀**
L1.801.81 ± 0.15 (1.56–2.07)
a22.521.5 ± 1.8 (17.8–23.6)
b3.93.8 ± 0.3 (3.3–4.3)
c56.266.1 ± 8.5 (56.4–79.6)
V?58.1 ± 0.9 (56.7–59.5)
c’0.70.6 ± 0.1 (0.5–0.8)
Lip region diameter2322.2 ± 1.0 (20–23)
Odontostyle length2625.1 ± 1.9 (22–28)
Odontophore length4240.8 ± 3.8 (33–44)
Neck length466472 ± 25 (417–514)
Pharyngeal expansion length239241 ± 20 (205–272)
Body diam. at neck base7579.2 ± 9.0 (65–98)
Mid-body8084.6 ± 8.1 (72–99)
Anus/cloaca4943.5 ± 2.9 (40–47)
Distance vulva – anterior end?1054 ± 99 (889–1232)
Prerectum length102118 ± 24 (84–160)
Rectum/cloaca length5959.8 ± 5.0 (52–68)
Tail length3227.8 ± 4.0 (24–34)

Malformations observed in the female genital system of dorylaims_

AnomalySpeciesHabitatCountryReference
Two duplicate systems Aporcelaimellus obtusicaudatus ?? Geraert (1963)
Eudorylaimus sp.?Spain Peña-Santiago (1986)
Xiphinema diversicaudatum WoodlandUK–Scotland Brown and Coiro (1984)
Xiphinema dentatum ?Serbia Radivojević (1991)
Didelphic-opisthodelphic Xiphinema coxi coxi Alfalfa fieldUSA–Florida Cho and Robbins (1990)
Loss of anterior genital branch Xiphinema coxi coxi Alfalfa fieldUSA–Florida Cho and Robbins (1990)
Vulvaless Xiphinema dentatum ?Serbia Radivojević (1991)
Two vulvae Longidorus danuvii Salix alba Poland Kornobis (2012)
Longidorus euonymus ?? Barsi (1994)
Longidorus juvenilis VineyardSlovenia Sirca et al. (2007)
Longidorus laevicapitatus CoffeeSao Tome Lamberti et al. (1987)
Longidorus sp.?? Jairajpuri and Ahmad (1969)
Mesodorylaimus bastiani ?? Loof (1969)
?? Valocká and Sabová (1980)
Nygolaimus sp.?? Jairajpuri and Ahmad (1969)
Xiphinema dentatum ?Serbia Radivojević (1991)
Xiphinema diversicaudatum ?? Barsi (1994)
Peach orchardCzech Republic Kumari and Decraemer (2009)
Xiphinema index FigItaly Catalano (1991)
Xiphinema turcicum ?Yugoslavia Radivojević (1991)
Xiphinema vuittenezi VineyardItaly Coiro and Lamberti (1980)
?? Barsi (1994)
Apple orchardCzech Republic Kumari and Decraemer (2006)
Apple orchardCzech Republic Kumari and Decraemer (2009)
Three vulvae Mesodorylaimus bastiani ?? Valocká and Sabová (1980)
DOI: https://doi.org/10.21307/jofnem-2019-017 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Page range: 1 - 4
Submitted on: Sep 10, 2018
Published on: Apr 17, 2019
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 times per year

© 2019 Reyes Peña-Santiago, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.