Description of Globodera sandveldensis n. sp (Nematoda: Heteroderidae) from South Africa

被引：4

作者：

Knoetze, Rinus ^{[1
,2
]}

Swart, Antoinette ^{[3
]}

Wentzel, Ria ^{[1
]}

Tiedt, Lourens R. ^{[4
]}

机构：

[1] Directorate Inspect Serv, Dept Agr Forestry & Fisheries, Private Bag X5015, ZA-7599 Stellenbosch, South Africa

[2] Univ Stellenbosch, Dept AgriSci, Dept Conservat Ecol & Entomol, Private Bag X1, ZA-7602 Matieland, South Africa

[3] ARC Plant Protect Res Inst, Biosystemat Div, Nematol Unit, Private Bag X134, ZA-0121 Queenswood, South Africa

[4] North West Univ, Lab Electron Microscopy, Potchefstroom Campus, ZA-2520 Potchefstroom, South Africa

来源：

NEMATOLOGY | 2017年 / 19卷 / 07期

关键词：

cyst nematode; molecular; morphology; morphometrics; new species; phylogeny; taxonomy; ACHILLEAE;

D O I：

10.1163/15685411-00003087

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

A new cyst nematode, herein described as Globodera sandveldensis n. sp., was found in the Sandveld, Western Cape Province, South Africa. As the host plant of G. sandveldensis n. sp. is currently unknown, the species is represented by cysts and second-stage juveniles (J2) only. The J2 are characterised by a well developed stylet of 26.4 (24.8-28.5) mu m with rounded to anteriorly flattened knobs. The distance from the dorsal pharyngeal gland outlet to the stylet knobs is 4.5 (2.4-7.2) mu m. The tail is 64 (56-77) mu m long and the length of the hyaline region is 33 (22-39) mu m. The cysts are characterised by their ovate to spherical shape, short neck, and the presence of subcuticular punctations and bullae or vulval bodies. Six to 14 cuticular ridges/lines are present on the outer surface of the cyst between the anus and vulval basin. Granek's ratio is 1.7 (0.9-3.0), the vulval basin diam. is 20.4 (13.1-34.6) mu m and the distance between vulval basin and anus is 33.5 (19.7-54.0) mu m. Phylogenetic relationships with other species of the genus, inferred from ITS-rDNA sequences, indicate that G. sandveldensis n. sp. is included in the clade of Globodera sp. that parasitise non-solanaceous plants and is closely related to unidentified Globodera spp. from Portugal, G. millefolii, and G. artemisiae.

引用

页码：805 / 816

页数：12

共 12 条

[1]

Cowling RM, 2004, VEGETATION SO AFRICA, P99

[2]

Franco N.F., 2000, International Journal of Nematology, V10, P169

[3]

GOLDEN AM, 1973, J NEMATOL, V5, P196

[4]

Kirjanova E. S., 1965, EESTI NSV TEADUSTE A, V14, P325