Molecular and morphological characterization of the root -lesion nematode, Pratylenchus neglectus , on corn from Henan Province of China
, , , , , and | Dec 25, 2021
About this article
Published Online: Dec 25, 2021
Page range: 385 - 393
Received: May 01, 2021
Accepted: Oct 29, 2021
DOI: https://doi.org/10.2478/helm-2021-0044
Keywords
© 2021 Y. H. Xia, Y. K. Liu, P. H. Hao, H. X. Yuan, K. Wang, H. L. Li, Y. Li, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Fig. 4
Measurements of the Pratylenchus neglectus population morphological characteristics.
| Character | SY-X | ||
|---|---|---|---|
| n | 16 | 32 | 10 |
| L | 459.0 ± 23.0(431.0 – 498.0) | 490(300 – 590) | 600(410 – 700) |
| a | 22.9 ± 1.6(20.0 – 26.1) | 26.7(22.3 – 32.2) | 24(17 – 31) |
| b | 5.7 ± 0.5(5.0 – 6.6) | 6.0(4.3 – 7.6) | 6.3(4.9 – 7.1) |
| b’ | 4.3 ± 0.3(3.9 – 4.7) | 4.3(3.4 – 5.2) | __ |
| c | 18.7 ± 2.2(15.2 – 24.7) | 21.4(14.8 – 28.2) | 21(13 – 31) |
| c’ | 2.1 ± 0.3(1.5 – 2.6) | 2.1(1.5 – 3.0) | 1.9(1.5 – 2.5) |
| V | 80.5 ± 2.1(77.5 – 84.6) | 82(80 – 85) | 83(77 – 85) |
| Stylet length | 15.8 ± 1.1(14.3 – 17.4) | 16(14 – 18) | 16(15.5 – 17.5) |
| Stylet shaft | 8.1 ± 0.5(7.3 – 9.3) | __ | __ |
| Stylet knob width | 4.1 ± 0.4(3.2 – 4.8) | __ | __ |
| Stylet knob height | 2.0 ± 0.3(1.6 – 2.7) | __ | __ |
| DGO from stylet base | 2.5 ± 0.5(1.4 – 3.3) | __ | __ |
| center of metacorpus | 45.7 ± 2.7(40.3 – 50.5) | __ | __ |
| end of pharyngeal gland lobe | 107.0 ± 4.3(98.5 – 113.0) | __ | __ |
| Anterior end to excretory pore | 74.5 ± 4.5(68.5 – 85.0) | __ | __ |
| Pharyngeal overlap | 26.7 ± 4.9 (19.6 – 39.4) | __ | __ |
| Max body diam. | 20.1 ± 1.6 (17.8 – 23.7) | __ | __ |
| Vulval body diam. | 17.9 ± 1.2(16.0 – 20.00) | __ | __ |
| Anal body diam. | 12.0 ± 1.1(10.6 – 14.8) | __ | __ |
| Anterior genital trace length | 147.4 ± 21.9(102.8 – 192.7) | __ | __ |
| Tail length | 24.8 ± 2.4(20.0 – 29.0) | __ | __ |
| No. of tail annuli | 20.7 ± 2.3(18 – 24) | __ | __ |
| Vulva to annus distance | 68.0 ± 11.5(53.5 – 96.5) | __ | __ |
| Post- uterine sac length | 19.7 ± 4.2(13.0 – 21.7) | __ | __ |
| Lateral field width | 7.2 ± 1.1(5.8 – 8.8) | __ | __ |
| Lip width | 8.1 ± 0.4(7.1 – 8.6) | __ | __ |
| Lip height | 2.4 ± 0.4(1.7 – 3.1) | __ | __ |