反刍动物奥斯特他线虫亚科（线虫纲：毛圆科）内的杂交繁殖

Interbreeding in the subfamily Ostertagiinae (Nematoda: Trichostrongylidae) of ruminants.

作者信息

Suarez V H, Cabaret J

机构信息

INRA, Station de Pathologie aviaire et de Parasitologie, Unité d'Ecologie des parasites, Nouzilly, France.

出版信息

J Parasitol. 1992 Jun;78(3):402-5.

PMID:1597780

Abstract

The interbreeding of 6 species of ostertagiines was studied in a sheep model. Virgin young females of selected nonpolymorphic strains of Ostertagia ostertagi, Ostertagia leptospicularis, and Teladorsagia circumcincta were mated with various male ostertagiines. Interbreeding was successful between O. ostertagi and Ostertagia lyrata, O. leptospicularis and Ostertagia kolchida, and T. circumcincta and Teladorsagia trifurcata, respectively. Their offspring were fertile and resembled one parent or the other without intermediate forms: each pair is a polymorphic species. Infertile hybrids, intermediate in form, were obtained from interbreeding between O. ostertagi and O. leptospicularis and they remain valid species.

摘要

在绵羊模型中研究了6种奥斯特他线虫的杂交情况。选用了奥斯特他线虫、细颈奥斯特他线虫和环形泰勒线虫非多态性品系的未交配年轻雌性，与各种雄性奥斯特他线虫进行交配。奥斯特他线虫与叶氏奥斯特他线虫、细颈奥斯特他线虫与科尔希达奥斯特他线虫、环形泰勒线虫与三叉泰勒线虫之间的杂交分别成功。它们的后代可育，且类似亲本之一，无中间形态：每一对都是多态性物种。奥斯特他线虫与细颈奥斯特他线虫杂交得到了形态为中间型的不育杂种，它们仍是有效物种。