First record of female intersex in Hirschmanniella shamimi Ahmad, 1972 (Nematoda: Pratylenchidae), with a checklist of intersexes in plant nematodes
Author
Zhuo, Kan
Author
Liao, Jinling
Author
Cui, Ruqiang
Author
Li, Yuzhong
text
Zootaxa
2009
1973
61
68
journal article
10.5281/zenodo.185096
ec8e6d1d-77e6-4db4-8f42-33cba825d64b
1175-5326
185096
Hirschmanniella shamimi
Ahmad, 1972
, female intersexes
(
Figs. 1
,
2
)
Type
material and locality:
Slide
HSI
1 and
HSI
2 deposited in Laboratory of Plant Nematology, South
China
Agricultural University, Guangzhou,
China
. Sample was collected in
May 2006
from soil samples around rice roots, in Guangzhou, Guangdong Province,
China
.
Measurements.
See
Table 1
.
TABLE 1.
Biometrics of female intersexes in
Hirschmanniella shamimi
compared with normal females and males.
Character |
Female intersex |
Normal |
HSI1 HSI2 |
present work |
Ahmad (1972) |
female |
male |
female male |
n |
1 |
1 |
20 |
10 |
17 |
10 |
L (μm) |
1429 |
1275 |
1450±16.3 (1320–1540) |
1350±24.9 (1260–1430) |
1270 (1190–1360) |
1240 (1200–1360) |
a |
56.7 |
56.2 |
53.6±1.0 (47.3–60.0) |
54.9±0.9 (50.0–58.2) |
51 (40–59) |
52 (43–59) |
b |
11.1 |
11.2 |
11.7±0.1 (11.0–12.8) |
12.1±0.2 (10.9–13.2) |
11.0 (10.1–13.8) |
12.0 (10.5–14.0) |
b’ |
5.7 |
5.1 |
5.1±0.2 (3.9–6.6) |
5.1±0.1 (4.7–5.6) |
4.7 (3.8–5.6) |
4.8 (4.4–5.1) |
c |
18.3 |
16.9 |
15.9±0.2 (15.0–18.0) |
18.1±0.4 (16.1–19.7) |
20 (17–23) |
19 (17–21) |
c’ |
4.1 |
5.1 |
4.9±0.1 (4.5–5.6) |
5.2±0.1 (4.8–5.7) |
– (3.5–5.0) |
– |
V% |
53.1 |
52.4 |
52.4±0.3 (51.0–55.2) |
– |
54 (51–56) |
– |
Stylet μm |
20.2 |
17.6 |
18.0±0.1 (17.5–18.5) |
17.8±0.2 (17.0–18.5) |
17 (16–19) |
– |
Spicule μm |
22.7 |
21.4 |
– |
23.6±0.3 (22.1–24.8) |
– |
– (22–25) |
Gubernaculum μm 7.6 7.1 – 8.2±0.2 – –
(7.6–9.0) (7–9)
Description.
Body slightly curved ventrally when heat relaxed. Lip region rounded, with 5 annuli. Stylet knobs rounded. Pharyngeal gland lobes long, ventrally overlapping intestine, 249 μm and 252 μm from anterior end for HSI1 and HSI2 respectively. Excretory pore posterior to level of esophago-intestinal valve. Lateral fields with four lines, not areolated near mid-body. Tail elongate conoid, terminus with a fine mucro and a ventral notch. The female reproductive system developed. Vulva well developed, in shape similar with the normal female vulva. Gonads didelphic, with outstretched ovaries, anterior genital branch 353 μm and 267μm long for HSI1 and HSI2 respectively, posterior genital branch 383 μm and 305 μm long for HS1 and HSI2 respectively. Spermatheca oval and filled with sperm cells. The male reproductive system reduced. Testis not detected. Spicules arcuate, well developed, similar to normal male. Gubernaculum simple, thin, slightly arcuate. Bursa extending 42.8 μm along ventral body in HSI2, but absent in HSI1.