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New data on known species of Hirschmanniella and Pratylenchus (Rhabditida, Pratylenchidae) from Iran and South Africa Cover

New data on known species of Hirschmanniella and Pratylenchus (Rhabditida, Pratylenchidae) from Iran and South Africa

Open Access
|Aug 2019

Figures & Tables

Table 1.

List of the species used for phylogenetic analysis based on rDNA and mtDNA available in the GenBank for Pratylenchus and Hirschmanniella.

Pratylenchus Hirschmanniella
18S rDNAITS rDNA28S rDNACOI mtDNA28S rDNA
SpeciesAccession number/localitySpeciesAccession number/localitySpeciesAccession number/localitySpeciesAccession number/localitySpeciesAccession number/locality
P. speijeri KM245059/China P. parafloridensis GQ988378/USA P. hippeastri FN554882/USA P. coffeae KU198943/Japan H. oryzae JX291141/Myanmar
P. speijeri KF974690/China P. parafloridensis GQ988377/USA P. hippeastri FM994115/USA P. coffeae KU198942/Japan H. oryzae JX291142/Myanmar
P. coffeae AB905286/Japan P. floridensis GQ988375/USA P. hippeastri FN554881/USA P. coffeae KY424075/China Hirschmanniella sp.DQ328686/Vietnam
P. coffeae KM245066/China P. floridensis GQ988376/USA P. hippeastri FN554879/USA P. coffeae KY424074/China H. oryzae KF201169/the Philippines
P. coffeae KY424134/China P. hippeastri FJ712933/USA P. hippeastri FM994114/USA P. speijeri KY424088/China H. oryzae KF201165/the Philippines
P. speijeri KF974688/ China P. hippeastri FJ712935/USA P. hippeastri KP161611/China P. speijeri KY424087/China H. oryzae KF201161/the Philippines
P. coffeae KY424139/China P. hippeastri FJ712934/USA P. hippeastri KC796704/Japan P. loosi KY424086/Japan H. belli EF029860/USA
P. coffeae KY424140/China P. hippeastri FJ712936/USA P. hippeastri KC796705/Japan P. loosi KY424085/China Hirschmanniella sp.EF029861/USA
P. coffeae KY424142/China P. hippeastri KY424236/China P. hippeastri KC796706/Japan P. loosi KY424084/China Hirschmanniella sp.KP671713/Belgium
P. speijeri KY424156/China P. hippeastri KR029085/China P. hippeastri KC796707/Japan P. loosi KX349422/China H. kwazuna South Africa
P. speijeri KM245067/China P. hippeastri KY424237/China P. hippeastri KY424307/China P. hippeastri KY424099/China H. kwazuna South Africa
P. coffeae KY424137/China P. hippeastri KC796698/Japan P. hippeastri KR029084/China P. hippeastri KY424098/China H. loofi EU620468/Belgium
P. coffeae KY424143/China P. hippeastri KC796701/Japan P. hippeastri KY424306/China P. scribneri KY424092/China H. loofi EU620469/Belgium
P. loosi AB905296/Japan P. hippeastri KC796702/Japan P. hippeastri KJ001720/China P. scribneri KX349425/China Hirschmanniella sp.JX261958/Iran
P. loosi KY424153/China P. hippeastri KC796699/Japan P. hippeastri GU214112/USA P. scribneri KY424090/China H. mucronata KP179327/Cambodia
P. loosi KY424154/China P. hippeastri KJ001718/Israel P. hippeastri KC796703/Japan P. scribneri KY424091/China H. mucronata KF201167/the Philippines
P. loosi KY424155/China P. hippeastri FJ712932/USA P. parafloridensis GU214114/USA P. scribneri KY424089/China H. mucronata KP179333/Cambodia
P. loosi AB905297/Japan P. hippeastri KC796700/Japan P. parafloridensis AF170438/USA P. vulnus KY828317/Belgium H. halophila EU620464/Germany
P. agilis EU130794/USA P. hippeastri FN554883/USA P. parafloridensis GU214115/USA P. vulnus KY828312/Belgium H. halophila EU620465/Germany
P. agilis EU130793/USA P. hippeastri FN554887/USA P. floridensis GU214116/USA P. vulnus KY424096/China H. pomponiensis DQ077795/USA
P. scribneri EU130812/USA P. hippeastri FN554884/USA P. floridensis AF170437/USA P. vulnus KY424094/China H. santarosae EF029859/USA
P. scribneri EU130811/USA P. hippeastri FN554888/USA P. floridensis GU214117/USA P. oleae KJ510866/Spain P. vulnus EU130885/USA
P. scribneri KY424158/China P. jaehni FJ712941/Brazil P. araucensis FJ463261/Colombia Rotylenchulus macrosoma KY992847/Greece
P. scribneri KY424159/China P. jaehni FJ712940/Brazil P. araucensis FJ463258/Colombia
P. scribneri EU669927/the Netherlands P. loosi FJ712946/Brazil P. araucensis FJ463260/Colombia
P. scribneri KY424162/China P. loosi FJ712942/Brazil P. coffeae AF170427/USA
P. scribneri KY424161/China P. pseudocoffeae KT971367/Costa Rica P. coffeae AF170426/USA
P. hippeastri KY424166/China P. pseudocoffeae KT175523/South Korea P. pseudocoffeae KT175531/South Korea
P. hippeastri KJ001716/Israel P. pseudocoffeae LC030339/Japan P. pseudocoffeae KT175532/South Korea
P. scribneri EU669958/the Netherlands P. pseudocoffeae LC030338/Japan P. pseudocoffeae KT971360/Costa Rica
P. araucensis FJ154950/Colombia P. scribneri KY424228/China P. pseudocoffeae KT175533/South Korea
P. japonicus KF385443/Japan P. scribneri KY424230/China P. scribneri KY424300/China
P. parazeae KY424184/China P. agilis FJ712891/USA P. agilis EU130841/USA
P. pratensis KC875387/the Netherlands P. agilis JQ039330/China P. scribneri JX047002/China
P. bolivianus KC875390/the Netherlands P. alleni JX081545/Canada P. scribneri EU130865/USA
Zygotylenchus guevarae AF442189/Belgium P. gutierrezi FJ712929/Guatemala P. scribneri KX842632/USA
P. gutierrezi FJ712930/Guatemala P. alleni MF155653/Canada
P. gutierrezi FJ712931/Guatemala P. speijeri KF974713/China
P. gutierrezi FR692277/Portugal P. speijeri KF974715/China
Zygotylenchus guevarai FJ717817/Spain P. speijeri KY424295/China
P. speijeri KF974716/China
P. speijeri KF974703/China
P. coffeae EU130846/Japan
P. coffeae EU130850/Japan
P. coffeae EU130845/Japan
P. coffeae KC490925/China
P. loosi KY424290/China
P. loosi EF446995/Iran
P. loosi KY424291/China
P. loosi KY424293/China
P. loosi JN091970/Japan
P. penetrans JX046999/China
P. penetrans JX046998/China
P. dunensis AJ890462/the Netherlands
P. dunensis AJ890460/the Netherlands
P. brachyurus KF712474/China
P. brachyurus KF712472/China
P. vulnus HM469437/China
P. vulnus KF430799/Japan
P. crenatus KX683378/the Netherlands
P. crenatus EU130853/UK
P. bhattii JN244270/China
P. bhattii JN244269/China
P. parazeae KP903445/China
P. parazeae KP903443/China
P. zeae KT033000/Kenya
P. zeae KT032999/Kenya
P. bolivianus KU198956/Bolivia
P. bolivianus KU198955/Bolivia
P. neglectus HM469438/China
P. neglectus MG205581/China
P. brzeskii AM231928/France
P. brzeskii AM231927/France
P. thornei KX258736/Iran
P. thornei KX258737/Iran
P. thornei EU130881/Moldova
Zygotylenchus guevarai JQ917439/Iran
Table 2.

Nematode species and GenBank accession numbers used for the present study.

SpeciesGeneGenBank accession numberOriginSample codes
P. hippeastri 18S rDNAMH324470Potchefstroom, South AfricaESW 1
P. hippeastri ITS rDNAMH324471Potchefstroom, South AfricaESW 2
P. hippeastri 28S rDNAMH324472Potchefstroom, South AfricaESW 3
P. hippeastri 28S rDNAMH324473Potchefstroom, South AfricaESW 4
P. hippeastri COI of mtDNAMH324474Potchefstroom, South AfricaESW 5
H. anchoryzae 28S rDNAMK571451Royan, IranIR Royan
H. anchoryzae COI of mtDNAMK583962Royan, IranIR Royan
Table 3.

Morphometrics of H. anchoryzae from Iran and P. hippeastri from South Africa. All measurements are in μm and in the form: mean ± s.d. (range).

Species H. anchoryzae P. hippeastri
LocalityRoyanPotchefstroom
ProvinceMazandaran ProvinceNorth-West Province
CountryIranSouth Africa
Habitat Mentha aquatica Willow tree
n4 ♀♀2 ♂♂7 ♀♀
L1,796 ± 71 (1,740–1,895)1,273, 1,625522.6 ± 69.5 (424–614)
a 65.0 ± 2.0 (63.6–68.0)62.1, 62.528.5 ± 3.1 (18.6–31.8)
b 10.3 ± 1.4 (9.0–11.6)6.6, 8.33.8 ± 0.7 (2.7–4.9)
c 18.6 ± 2.3 (16.4–21.9)15.7, 18.818.7 ± 3.1 (11.7–23.6)
c′ 5.5 ± 1.6 (4.2–7.2)4.2, 5.42.2 ± 0.2 (2.0–2.3)
V55.4 ± 1.9 (53–57)77.1 ± 3.5 (73–82)
Lip region height4.1 ± 0.2 (4–5)3, 42.6 ± 0.7 (1.9–3.7)
Lip region diameter10.3 ± 0.5 (10–11)9, 118.5 ± 1.7 (7–11)
Stylet length20.2 ± 1 (19–21)18, 1915.4 ± 1.6 (13–18)
Stylet conus length9.8 ± 0.7 (9–11)9, ?7.6 ± 0.7 (6.4–8.2)
Stylet shaft length8.4 ± 0.5 (8–9)8, ?4.9 ± 1.2 (4.2–5.8)
Stylet knob height1.7 ± 0.2 (1.5–1.8)1.5, ?2.2 ± 0.4 (1.7–2.5)
Stylet knob width3.6 ± 0.3 (3.3–3.8)3.4, ?3.4 ± 0.7 (2.7–4.1)
DGO from stylet base3.2 ± 0.4 (3–4)3.3, 3.72.7 ± 0.9 (1.7–3.6)
Anterior end to centre of median bulb87 ± 3 (84–91)77, 9353.8 ± 3.7 (50–60)
End of pharyngeal glands393 ± 13 (380–410)223, 441132.9 ± 15.9 (116–149)
Median bulb length12.7 ± 0.2 (12–13)1313.8 ± 2.7 (11–16)
Median bulb width16.6 ± 0.5 (16–17)189.1 ± 1.8 (7–10)
Excretory pore – anterior end150 ± 2 (148–152)119, 14395.7 ± 15.1 (80–112)
Maximum body diameter28 ± 2 (26–29)21, 2620.9 ± 3.4 (17–27)
Anal body diameter18 ± 4 (13–20)15, 2012.9 ± 1.0 (12–14)
Anterior genital tract length?160.5 ± 36.5 (102–210)
Tail length101 ± 4 (96–106)81, 8731.7 ± 6.4 (26–43)
Number of tail annuli73 ± 9 (63–80)?21.3 ± 2.8 (18–23)
Vulva to anus distance77.5 ± 7.7 (72–83)
Post-vulval uterine sac length20.6 ± 3.9 (16–26)
Lateral field width7.575.5 ± 0.7 (5–6)
Phasmid-anus distance57.8 ± 7.6 (46–64)49, 6117.2 ± 4.1 (15-22)
Spicules27, 30
Gubernaculum8.6-8.7
Figure 1:

Line drawings of Hirschmanniella anchoryzae. (A) anterior portion of the female; (B) cephalic region of the female; (C–E) female posterior end; (F) male posterior end; (G) female reproductive system; (H, I) status of females after relaxation; (J, K) status of male after relaxation.

Figure 2:

PCA analysis of the different population of H. anchoryzae.

Table 4.

Genetic pairwise distance estimation of 28S rDNA of Hirschmanniella species using Mega 7.

SpeciesLocality12345678910111213
1 H. anchoryzae Iran0.0350.0490.0510.0320.0480.0550.0520.0530.0560.0240.0580.053
2 H. pomponiensis USA0.1090.0400.0390.0070.0380.0450.0440.0440.0470.0240.0470.041
3 Hirschmanneilla sp.Iran0.1470.1260.0310.0380.0270.0300.0300.0160.0140.0460.0220.030
4 Hirschmanneilla sp.USA0.1460.1220.1020.0350.0120.0140.0140.0310.0300.0400.0310.004
5 H. santarosae USA0.1010.0190.1230.1100.0330.0390.0380.0390.0420.0220.0420.036
6 H. belli USA0.1370.1160.0880.0360.1030.0070.0060.0260.0260.0380.0310.011
7 H. oryzae Myanmar and the Philippines0.1520.1310.0970.0430.1190.0160.0000.0290.0280.0420.0310.012
8 Hirschmanneilla sp.Vietnam0.1460.1290.0980.0440.1170.0150.0000.0300.0290.0440.0310.012
9 H. kwazuna South Africa0.1490.1310.0500.0970.1190.0820.0900.0920.0100.0390.0180.028
10 H. loofi Belgium0.1570.1390.0440.0970.1280.0830.0890.0920.0260.0410.0170.028
11 H. halophila Germany0.0730.0750.1400.1210.0690.1130.1240.1280.1180.1240.0430.040
12 H. mucronata Belgium0.1660.1450.0740.1030.1320.1000.1000.1000.0580.0550.1320.031
13 Hirschmanneilla sp.Belgium0.1490.1240.0980.0090.1110.0300.0360.0360.0890.0890.1200.101

1 Notes: Accession numbers: 1 = MK571451; 2 = DQ077795; 3 = JX261958; 4 = EF029861; 5 = EF029859; 6 = EF029860; 7 = JX291141, JX291142, KF201161, KF201165, KF201169; 8 = DQ328686; 9 = EU620466, EU620467; 10 = EU620468, EU620469; 11 = EU620464, EU620465; 12 = KP179327, KP179333, KF201167; 13 = KP671713.

Figure 3:

The Bayesian inference tree of Hirschmanniella anchoryzae (Ebsary and Anderson, 1982) from Iran and other related species based on the sequences from 28S rDNA under GTR+I+G model (−lnL = 3,374.3581; AIC = 6,856.7162; freqA = 0.2269; freqC = 0.2193; freqG = 0.3068; freqT = 0.2471; R(a) [AC] = 0.6057; R(b) [AG] = 2.7984; R(c) [AT] = 0.9170; R(d) [CG] = 0.2612; R(e) [CT] = 3.5814; R(f) [GT] = 1; p-inv = 0.1960; shape = 0.5340).

Figure 4:

Line drawings of Pratylenchus hippeastri. (A) female anterior end; (B, C) stoma; (D) female reproductive system; (E) entire female; (F) lateral field; (G) post uterine sac; (H, I) female posterior end (arrow indicates phasmid).

Figure 5:

Light photomicrographs of Pratylenchus hippeastri. (A, B) anterior end (arrows indicate hemizonid); (C) reproductive system (arrow indicates vulva); (D) entire body (black arrow indicates vulva, white arrows indicate phasmids); (E) posterior end (arrow indicate anus).

Figure 6:

Scanning electron microscope photographs of Pratylenchus hippeastri. (A) entire body (black arrow indicates vulva); (B, C, E) lip region in lateral, frontal and ventral views, respectively); (D) female anterior region; (F) excretory pore (arrow); (G) lateral field (arrows indicate longitudinal incisures); (H) vulval region; (I, J) female posterior end in ventral and lateral views, respectively (arrow indicates phasmid); (K) anus.

Table 5.

Correlation of morphometric data of P. hippeastri from South Africa.

VariablesL a b c ć VStyletDGOTailPUSPhasmidMBPharynx
L 1 −0.2360.7860.336−0.340−0.4530.277−0.4040.7680.6720.626 0.931 −0.841
a −0.236 1 −0.5160.589−0.210−0.285−0.601−0.166−0.605−0.8460.001−0.449−0.205
b 0.786−0.516 1 −0.1870.198−0.5030.792−0.287 0.904 0.8060.7970.709−0.679
c 0.3360.589−0.187 1 −0.882 0.082−0.488−0.692−0.344−0.191−0.1340.140−0.359
ć −0.340−0.2100.198 −0.882 1 −0.4270.4710.6070.275−0.0790.407−0.2800.103
V−0.453−0.285−0.5030.082−0.427 1 −0.181−0.141−0.5430.059 −0.913 −0.3290.811
Stylet0.277−0.6010.792−0.4880.471−0.181 1 −0.2570.5880.6790.5310.192−0.197
DGO−0.404−0.166−0.287−0.6920.607−0.141−0.257 1 0.089−0.268−0.094−0.1200.347
Tail0.768−0.605 0.904 −0.3440.275−0.5430.5880.089 1 0.7710.7360.831−0.614
PUS0.672−0.8460.806−0.191−0.0790.0590.679−0.2680.771 1 0.2960.738−0.261
Phasmid0.6260.0010.797−0.1340.407 −0.913 0.531−0.0940.7360.296 1 0.472−0.856
MB 0.931 −0.4490.7090.140−0.280−0.3290.192−0.1200.8310.7380.472 1 −0.655
Pharynx−0.841−0.205−0.679−0.3590.1030.811−0.1970.347−0.614−0.261−0.856−0.655 1

1 Note: Values in italic are different from 0 with a significance level α = 0.05.

Figure 7:

PCA analysis of the different population of P. hippeastri.

Figure 8:

Cluster dendrogram for different populations of P. hippeastri using morphometric data. Red values represent AU (approximated unbiased) values. Green values on the right branch indicate BP (bootstrap probability). Florida 1 (Inserra et al. 2007) and Florida 2 (De Luca et al. 2010).

Figure 9:

The Bayesian inference tree of Pratylenchus hippeastri from South Africa and other related taxa based on the sequences from 18S rDNA under GTR+I+G model (−lnL = 5,036.0855; AIC = 10,236.171; freqA = 0.2586; freqC = 0.2234; freqG = 0.2663; freqT = 0.2517; R(a) [AC] = 1.29106; R(b) [AG] = 2.99041; R(c) [AT] = 1.68788; R(d) [CG] = 0.89263; R(e) [CT] = 6.4881; R(f) [GT] = 1; p-inv = 0.5010; Shape = 0.4870).

Figure 10:

The Bayesian inference tree of Pratylenchus hippeastri from South Africa and other related taxa based on the sequences from ITS rDNA under GTR+I+G model (−lnL = 7,745.2851; AIC = 15,674.5702; freqA = 0.2437; freqC = 0.2123; freqG = 0.255; freqT = 0.2889; R(a) [AC] = 1.07478; R(b) [AG] = 2.56737; R(c) [AT] = 1.63147; R(d) [CG] = 0.53909; R(e) [CT] = 2.91622; R(f) [GT] = 1; p-inv = 0.2300; Shape = 1.3540).

Figure 12:

The Bayesian inference tree of Pratylenchus hippeastri from South Africa and other related taxa based on the sequences from COI of mtDNA under GTR+I+G model (−lnL = 2,667.1378; AIC = 5,446.2756; freqA = 0.2552; freqC = 0.0926; freqG = 0.1917; freqT = 0.4604; R(a) [AC] = 0.01; R(b) [AG] = 9.49586; R(c) [AT] = 2.67386; R(d) [CG] = 3.1383; R(e) [CT] = 8.02121; R(f) [GT] = 1; p-inv = 0.2150; Shape = 0.4730).

Figure 11:

The Bayesian inference tree of Pratylenchus hippeastri from South Africa and other related taxa based on the sequences from 28S rDNA under GTR+I+G model (−lnL = 7,451.6325; AIC = 15,235.265; freqA = 0.2081; freqC = 0.2296; freqG = 0.3327; freqT = 0.2296; R(a) [AC] = 0.83418; R(b) [AG] = 2.50021; R(c) [AT] = 1.25212; R(d) [CG] = 0.34218; R(e) [CT] = 4.6954; R(f) [GT] = 1; p-inv = 0.2510; Shape = 0.6830).

DOI: https://doi.org/10.21307/jofnem-2019-041 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Language: English
Page range: 1 - 26
Submitted on: Mar 26, 2019
Published on: Aug 5, 2019
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2019 Ebrahim Shokoohi, Joaquín Abolafia, Phatu William Mashela, Nafiseh Divsalar, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.