Experimental hybridization between Oesophagostomum dentatum and O. quadrispinulatum in pigs

被引：2

作者：

Christensen C.M. ^{[1
]}

机构：

[1] Danish Center for Experimental Parasitology, Royal Veterinary and Agricultural University, DK-1870 Frederiksberg C

来源：

Parasitology Research | 1997年 / 84卷 / 1期

关键词：

Parent Generation; Adult Worm; Experimental Hybridization; Reciprocal Cross; Morphological Examination;

D O I：

10.1007/s004360050347

中图分类号：

学科分类号：

摘要：

To investigate eventual hybridization between two nodular worm species of pigs, Oesophagostomum dentatum and O. quadrispinulatum, we used either mature, adult worms or 10-day-old fourth-stage larvae (L4) as starting material, employing a nonsurgical transplantation technique. Following the transfer of adult worms the ensuing first generation of larvae gave rise to adult worms that were found by morphological examination to be purely O. dentatum. Therefore, we decided to use the immature L4 as starting material. After the transfer of L4 to recipient pigs, fecal cultures were established and the L3 derived from the O. dentatum male/ O. quadrispinulatum female cross gave rise to adult but infertile worms, which morphologically had the sexual characters of their parent generation, whereas other characteristics were intermediate between the two species. Attempts to reproduce the hybrid worms or the reciprocal cross were unsuccessful, indicating that hybridization between the two species is a rarely occurring phenomenon. © Springer-Verlag 1998.

引用

页码：1 / 6

页数：5

共 3 条

[1] Bhaibulaya M., Experimental hybridization of Angiostrongylus mackerrasae, Bhaibulaya, 1968 and Angiostrongylus cantonensis (Chen, 1935), Int J Parasitol, 4, pp. 567-573, (1974)
[2] Bjorn H., Roepstorff A., Nansen P., Waller P.J., A dose response investigation on the level of resistance to pyrantel citrate in nodular worms of pigs, Vet Parasitol, 31, pp. 259-267, (1989)
[3] Bjorn H., Roepstorff A., Waller P.J., Nansen P., Resistance to levamisole and cross resistance between pyrantel and levamisole in Oesophagostomum quadrispinutatum and Oesophagostomum dentatum of pigs, Vet Parasitol, 37, pp. 21-30, (1990)

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