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Morphological and molecular characterization of Ektaphelenchoides pini (Massey, 1966) Baujard, 1984 (Aphelenchoididae; Ektaphelenchinae) from Iran, with morphological and taxonomic observations on some species Cover

Morphological and molecular characterization of Ektaphelenchoides pini (Massey, 1966) Baujard, 1984 (Aphelenchoididae; Ektaphelenchinae) from Iran, with morphological and taxonomic observations on some species

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Open Access
|May 2020

Figures & Tables

Figure 1:

Iranian population of Ektaphelenchoides pini (Massey, 1966; Baujard, 1984). A: Anterior body region of male; B: Anterior body region of female; C: Metacorpus and the position of E pore (arrow) (male); D: Vulval region and PUS; E: Vulval slit in ventral view; F: Ventro-lateral view of male caudal region showing P2 (upper arrows) and P3 (lower arrows) papillae; G: Tip of ovary; H: Female posterior body region; I: Male cloacal region and spicule and tail tip (I1); J: Lateral lines; K: Spicule (close up), L: Male posterior body region showing P2 (upper arrow) and P3 (lower arrow) and single ventral P1 lacking. (Scale bars = 10 µm).

Table 1.

Morphometrics of Ektaphelenchoides pini (Massey, 1966; Baujard, 1984) from Golestan province, Iran, and comparison with data of the type population and the population from France.

This studyType population, studied by Baujard (1984) French population (Baujard, 1984)
CharacterFemalesMalesFemaleMalesFemalesMales
n149110405
L829.4 ± 70.2611.8 ± 59.6720840740750
(756–947)(502–701)(730–980)(630–950)(680–820)
a37.4 ± 3.138.8 ± 3.23332.53333
(30.0–37.7)(33.8–39.6)(28–38)(31–36)(31–36)
b7.2 ± 0.86.7 ± 0.79888
(6.03–8.2)4.3 ± 0.8(7–9)(7–11)(7–9)
b´4.7 ± 0.5(3.3–5.8)––––
(4–5.6)13.9 ± 1.1
c–(12.5–15.8)–14–14
2.9 ± 0.2(13–17)(12.5–118.0)
c´–2.9 ± 0.2–2.9–3.1
(2.7–3.1)(2.6–3.0)(2.2–3.6)
T or V69.4 ± 2.090.6 ± 1.974–70–
(70.2–72.3)(87.0–88.6)(67–74)
Cephalic region height3.6 ± 0.43.0 ± 0.4––––
(3.0-4.3)(2.4-3.7)
Cephalic region width8.2 ± 0.57.4 ± 0.6––––
(7.4–8.8)(6.4–8.5)
Stylet20.9 ± 1.118.7 ± 1.023242323
(20–23)(17.3–19.8)(21–26)(20–26)(22–24)
Max. body dim.22.4 ± 2.215.8 ± 1.2––––
(20–26)(14–18)
m40.4 ± 5.044.4 ± 4.9––––
(32.5–44.0)(36.6–47.4)
Body width at MB17.1 ± 1.415.0 ± 1.2––––
(16–20)(13–17)
E pore from anterior97.5 ± 5.499.2 ± 8.3104119105
end(92–106)(91.2–108.1)(101–132)(94–123)
Nerve ring from100.5 ± 7.585.8 ± 14.2––––
anterior end(87–97)(71–110)
Median bulb width11.1 ± 1.49.9 ± 1.5––––
(10–14)(8–12)
Median bulb length20.7 ± 2.718.3 ± 2.3––––
(17–25)(16–22)
Median bulb length/1.9 ± 0.21.8± 0.1––––
diam. ratio(1.5–2.2)(1.7–2.0)
Ovary/testis length360.5 ± 34.7197.8± 6.6––––
(310–420)(184–201)
Hemizonid from98 ± 3104.4 ± 7.9––109–
anterior end(92–105)(93–109)(97–115)
Vulval body diam.22.3 ± 3.1–––––
(17–28)
PUS length27.6 ± 3.3–––?–
(23–33)
Anal/cloacal body–15.1 ± 1.5––––
diam.(13–18)
Tail–44.0 ± 3.1–––53
(40–49)(38–61)
Spicules arc line–20.6 ± 1.025.524
length(19–22)(22–28)(21–26)
Capitulum width–5.6 ± 0.5––––
(5-6)

1 Note: All measurements are in μm and in the form: mean ± s.d. (range).

Figure 2:

Bayesian 50% majority rule consensus tree inferred from analysis of the partial SSU rDNA sequence of Iranian population of Ektaphelenchoides pini (Massey, 1966; Baujard, 1984) from Golestan province under the GTR + G + I model. Bayesian posterior probability values more than 0.50 are given for appropriate clades. The new sequence is indicated in bold.

Figure 3:

Bayesian 50% majority rule consensus tree inferred from analysis of the partial LSU rDNA sequence of Iranian population of Ektaphelenchoides pini (Massey, 1966; Baujard, 1984) from Golestan province under the GTR + G + I model. Bayesian posterior probability values more than 0.50 are given for appropriate clades. The new sequence is indicated in bold.

DOI: https://doi.org/10.21307/jofnem-2020-052 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Page range: 1 - 12
Submitted on: Mar 2, 2020
Published online: May 25, 2020
Published in print: Jan 1, 2020
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2020 Fariba Heydari, Majid Pedram, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.