Have a personal or library account? Click to login

Morphological and molecular characterization of Pungentus sufiyanensis n. sp. and additional data on P. engadinensis (Altherr, 1950) Altherr, 1952 (Dorylaimida: Nordiidae) from northwest of Iran

Open Access
|Apr 2020

Figures & Tables

Figure 1:

Pungentus sufiyanensis n. sp. (A) neck region; (B) anterior region; (C) amphidial pouch, (D) entire body, (E) genital system, (F) posterior body region.
Pungentus sufiyanensis n. sp. (A) neck region; (B) anterior region; (C) amphidial pouch, (D) entire body, (E) genital system, (F) posterior body region.

Figure 2:

Pungentus sufiyanensis n. sp. (female) (A) entire, (B, C) anterior body region in lateral median view, (D) lip region in lateral surface view, (E) pharyngo-intestinal junction, (F) vagina, (G) posterior body region, (H) genital system, (I) pharyngeal expansion and pharyngo-intestinal junction, (J) lateral chord. (Scale bars: A = 32 μm; B-I = 10 μm).
Pungentus sufiyanensis n. sp. (female) (A) entire, (B, C) anterior body region in lateral median view, (D) lip region in lateral surface view, (E) pharyngo-intestinal junction, (F) vagina, (G) posterior body region, (H) genital system, (I) pharyngeal expansion and pharyngo-intestinal junction, (J) lateral chord. (Scale bars: A = 32 μm; B-I = 10 μm).

Figure 3:

Phylogenetic tree of the Pungentus sufiyanensis n. sp. using D2-D3 expansion segments of the 28S rDNA gene inferred from a Bayesian analysis under SYM + I + G model (−lnL = 3,311.6086; AIC = 6,637.2173; freqA = 0.2474; freqC = 0.2381; freqG = 0.2699; freqT = 0.2446; R(a) = 1.0335; R(b) = 5.3584; R(c) = 1.8784; R(d) = 0.7817; R(e) = 8.4264; R(f) = 1.0000). Posterior probability values exceeding 50% are given on appropriate clades. Newly obtained sequence is in bold letters.
Phylogenetic tree of the Pungentus sufiyanensis n. sp. using D2-D3 expansion segments of the 28S rDNA gene inferred from a Bayesian analysis under SYM + I + G model (−lnL = 3,311.6086; AIC = 6,637.2173; freqA = 0.2474; freqC = 0.2381; freqG = 0.2699; freqT = 0.2446; R(a) = 1.0335; R(b) = 5.3584; R(c) = 1.8784; R(d) = 0.7817; R(e) = 8.4264; R(f) = 1.0000). Posterior probability values exceeding 50% are given on appropriate clades. Newly obtained sequence is in bold letters.

Figure 4:

Pungentus engadinensis (Altherr, 1950) Altherr, 1952, Anterior region, Vaginae and Posterior body region of (A-C) Urmia; (D-F) Divandarreh; (G-I) Bokan; (J-L) Maragheh; (M-O) Sufiyan and (P-R) Basmenj populations, respectively. (Scale bars 10 μm).
Pungentus engadinensis (Altherr, 1950) Altherr, 1952, Anterior region, Vaginae and Posterior body region of (A-C) Urmia; (D-F) Divandarreh; (G-I) Bokan; (J-L) Maragheh; (M-O) Sufiyan and (P-R) Basmenj populations, respectively. (Scale bars 10 μm).

Nematode species, locality, associated host and sequences used in this study_

SpeciesLocalityHost-plantAccession number
Enchodelus cf longispiculus Gorgan province, IranKP190119
Enchodelus spHamedan province, IranKP190120
Enchodelus spEF207240
Enchodelus macrodorus AY593054
Enchodeloides signyensis KY881719
Enchodorus dolichurus KR184124
Enchodorus dolichurus KR184125
Enchodorus yeatsi Andimeshk, Khuzestan province, IranMosses in a natural regionKX691911
Heterodorus youbertghostai Sabalan mountains, IranGrasslandsKR184127
Heterodorus youbertghostai Arasbaran forests, Kaleybar, East-Azarbayjan province, IranGrassesKR184126
Heterodorus brevidentatus Kerman, IranKP963962
Longidorella penetrans HM235515
Longidorella cf macramphis AY593042
Paravulvus hartingii AY593062
Pungentus silvestris AY593052
Pungentus silvestris AY593053
Pungentus engadinensis AY593050
Pungentus engadinensis Damghan, Semnan province, IranFruit treesMH346473
Pungentus engadinensis Noshahr, Mazandaran province, IranForest treesMH346474
Pungentus monohystera GermanySedimentMF325343
Pungentus monohystera GermanySedimentMF325344
Pungentus azarbaijanensis West-Azarbaijan province, IranGrassesMH346476
Pungentus azarbaijanensis West-Azarbaijan province, IranGrassesMH346477
Pungentus sufiyanensis n. sp.Sufiyan, East-Azarbaijan province, IranBlack cherry trees (Prunus cerasus L.)MN855359
Rhyssocolpus vinciguerrae Astara forests, north-western IranForest treesKP204547

Morphometric data for Pungentus sufiyanensis n_ sp_

Sufiyan population
LocalityFemaleBokan populationMarand population
CharactersHolotypeParatypesFemaleFemale
n782
L1.491.53 ± 0.081.41 ± 0.091.27 ± 0.07
(1.40–1.57)(1.33–1.54)(1.22–1.33)
a4542.0 ± 3.347.0 ± 2.846.0 ± 2.3
(40.0–47.0)(42.0–50.0)(43.0–49.0)
b4.44.5 ± 0.14.4 ± 0.33.9 ± 0.7
(4.3–4.8)(4.0–5.0)(3.9–4.0)
c6875.0 ± 6.170.0 ± 4.768.0 ± 1.4
(65.0–84.0)(66.0–75.0)(67.0–70.0)
10.8 ± 0.010.9 ± 0.070.9 ± 0.01
(0.7–1.0)(0.8–1.0)(0.8–1.0)
V5049.0 ± 1.049.0 ± 1.051.0 ± 2.3
(47.0–50.0)(48.0–51.0)(49.0–54.0)
Lip region diam.88.4 ± 0.38.2 ± 0.68.0 ± 0.5
(8.0–9.0)(7.5–9.0)(7.0–9.0)
Odontostyle length2019.0 ± 0.719.0 ± 1.420.0 ± 0.4
(18.0–20.0)(18.0–20.5)(19.0–21.0)
Odontophore length1817.0 ± 0.816.5 ± 0.217.0 ± 1.8
(15.0–18.0)(16.0–17.0)(16.0–19.0)
Guiding ring from ant. end1313.0 ± 0.513.5 ± 0.014.0 ± 0.0
(12.0–14.0)(13.5)(14.0)
Neck length325335 ± 7340 ± 15315 ± 10
(325–348)(304–356)(309–328)
Phar. expansion length148150.0 ± 2.8149.0 ± 5.2138.0 ± 4.7
(147.0–155.0)(138.0–161.0)(133.0–144.0)
Body diam. at neck base3033.0 ± 1.929.0 ± 1.826.0 ± 0.0
mid-body anus (30.0–38.0)(27.0–31.0)(26.0)
3235.0 ± 1.629.0 ± 0.427.5 ± 0.3
(32.0–38.0)(28.0–30.0)(27.0–28.0)
2023.0 ± 2.619.5 ± 1.120.0 ± 0.6
(20.0–26.0)(18.0–21.0)(19.0–21.0)
Prerectum length7571 ± 1167.0 ± 3.183.0 ± 2.0
(57–90)(62.0–73.0)(82.0–85.0)
Rectum length1819.0 ± 1.820.0 ± 1.220.5 ± 0.4
(18.0–23.0)(19.0–22.0)(20.0–21.0)
Tail length2120.0 ± 1.819.0 ± 2.018.5 ± 0.2
(18.0–23.0)(17.5–23.0)(18.0–19.0)

Morphometric data for six Iranian populations of Pungentus engadinensis_

LocalityUrmia populationDivandarreh populationBokan populationMaragheh populationSufiyan populationBasmenj population
CharactersFemaleFemaleFemaleFemaleFemaleFemale
n567756
L0.90 ± 0.061.10 ± 0.010.99 ± 0.071.00 ± 0.050.95 ± 0.030.99 ± 0.03
(0.83–1.00)(0.91–1.22)(0.90–1.10)(0.90–1.10)(0.90–0.99)(0.96–1.06)
a39.0 ± 2.440.5 ± 0.539.0 ± 2.335.5 ± 1.438.0 ± 1.934.8 ± 2.0
(36.5–42.0)(36.5–50.5)(34.5–41.5)(34.0–37.0)(36.0–41.0)(35.0–37.0)
b3.7 ± 0.24.0 ± 0.63.9 ± 0.24.0 ± 0.24.0 ± 0.13.8 ± 0.2
(3.5–4.5)(3.8–5.0)(3.5–4.0)(4.0–4.5)(3.9–4.2)(3.5–4.2)
c47.0 ± 4.660.5 ± 5.552.0 ± 0.560.5 ± 6.454.0 ± 3.458.6 ± 7.7
(42.0–52.5)(55.0–68.0)(44.5–59.0)(52.0–72.0)(50.0–59.0)(46.0–68.0)
1.1 ± 0.080.9 ± 0.091.0 ± 0.010.0 ± 0.060.94 ± 0.050.81 ± 0.07
(1.0–1.2)(0.7–1.1)(0.9–1.1)(0.8–0.9)(0.9–1.0)(0.7–0.9)
V48.0 ± 2.545.5 ± 0.846.0 ± 1.446.0 ± 1.347.0 ± 1.644.3 ± 3.2
(44.0–52.0)(44.5–47.0)(44.0–48.0)(44.0–47.0)(45.0–49.0)(41.0–49.0)
Lip region diam.8.3 ± 0.510.6 ± 0.210.0 ± 0.610.0 ± 0.58.6 ± 0.48.8 ± 0.4
(8.0–9.0)(10.0–11.0)(8.0–11.0)(9.0–11.0)(8.0–9.0)(8.0–9.0)
Odontostyle length15.0 ± 0.518.0 ± 0.515.3 ± 0.117.5 ± 0.216.0 ± 0.015.9 ± 0.9
(14.5–16.0)(17.5–18.5)(14.0–17.0)(16.0–18.0)(16.0)(15–17.5)
Odontophore length19.5 ± 0.615.6 ± 2.116.6 ± 1.820.8 ± 1.314.2 ± 0.619.6 ± 0.9
(19.0–20.5)(13.0–18.5)(14.1–19.3)(19.0–22.0)(13.0–15.0)(17.0–21.0)
Guiding ring from ant. end10.3 ± 0.511.2 ± 0.410.6 ± 0.810.3 ± 0.410.2 ± 0.411.3 ± 0.4
(10.0–11.4)(11.0–12.0)(9.0–12.0)(10.0–11.0)(9.0–11.0)(9.6–12.0)
Neck length238 ± 13265 ± 14259 ± 21302 ± 13236 ± 11254 ± 10
(223–255)(233–295)(228–293)(228–329)(219–248)(243–266)
Phar. expansion length91.2 ± 8.3104.2 ± 3.189.6 ± 9.7108.2 ± 4.496.0 ± 9.1101.0 ± 5.2
(84.0–105.0)(102.0–108.0)(81.0–106.0)(101.0–116.0)(85.0–108.0)(95.0–109.0)
Body diam. at neck base26.2 ± 0.429.6 ± 2.722.2 ± 1.526.0 ± 0.723.0 ± 0.726.0 ± 0.9
(25.0–27.0)(25.0–34.0)(21.0–24.1)(25.0–27.0)(22.0–24.0)(25.0–27.0)
 mid-body27.4 ± 0.332.2 ± 2.023.3 ± 0.828.3 ± 0.424.8 ± 0.128.2 ± 1.3
(27.0–28.2)(28.0–37.0)(22.0–25.0)(27.0–29.1)(24.0–25.0)(27.0–30.0)
 anus18.3 ± 0.522.3 ± 2.318.1 ± 0.620.0 ± 0.718.0 ± 0.720.0 ± 1.7
(17.0–19.0)(20.0–25.0)(17.0–19.0)(19.0–21.0)(17.0–19.0)(19.0–22.0)
Prerectum length72.6 ± 13.285.1 ± 12.455.2 ± 7.782.2 ± 2.240.0 ± 6.864.3 ± 5.1
(52.0–94.0)(72.0–101.0)(50.3–64.0)(77.0–88.0)(30.2–50.0)(59.0–69.0)
Rectum length17.6 ± 0.220.3 ± 1.514.3 ± 0.518.1 ± 1.216.0 ± 2.422.0 ± 2.2
(16.0–18.0)(18.0–22.0)(13.0–16.0)(16.0–20.0)(14.0–20.0)(19.0–25.0)
Tail length18.5 ± 0.817.5 ± 0.919.0 ± 0.716.7 ± 1.218.0 ± 0.817.1 ± 2.4
(17.5–22.5)(16.5–21.0)(18.0–20.0)(14.0–18.0)(17.0–19.0)(15.0–21.0)
DOI: https://doi.org/10.21307/jofnem-2020-030 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Page range: 1 - 12
Submitted on: Jan 23, 2020
Published on: Apr 28, 2020
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2020 Nasir Vazifeh, Gholamreza Niknam, Habibeh Jabbari, Reyes Peña-Santiago, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.