{"_":"（Weld，1951）的染色体及对Figitidae科（膜翅目）已知核型的综述。","i":["Aganaspis daci"]}

摘要(中文译文)

寄生蜂（Weld, 1951）是多种实蝇科果蝇的天敌，近期在意大利首次被发现。尽管该物种具有生物学和应用相关性，但迄今为止尚无该物种的染色体数据。本文基于来自意大利坎帕尼亚（Campania）一个实验室种群的标本，利用染色体形态计量学和吖啶橙染色，首次对该物种进行了核型描述。该物种n = 9，2n = 18，第一条中着丝粒染色体非常大，其余染色体中以近端着丝粒染色体为主。第六条中着丝粒染色体推测携带单个核仁组织区（NOR）。吖啶橙染色显示所有染色体均呈均匀染色。本文还对Figitidae科寄生蜂的染色体研究进行了简要综述，该科物种n = 5至11。单倍体核型为十条染色体，显然代表了至少真茧蜂亚科（Eucoilinae）的祖先特征状态，而包含n = 9及非常大的第一条中着丝粒染色体的染色体组，很可能源于独立的染色体融合事件。

Abstract

The parasitoid wasp (Weld, 1951) is a natural enemy of several tephritid fruit flies and was recently detected for the first time in Italy. Despite its biological and applied relevance, no chromosomal data have been available for this species until now. Here we provide the first karyotype description of , based on specimens from a laboratory stock in Campania (Italy), using chromosome morphometry and acridine orange staining. This species has n = 9 and 2n = 18, with a very large first metacentric chromosome, and acrocentrics prevailing among the remaining ones. The sixth metacentric presumably carries a single nucleolus organizing region (NOR). Staining with acridine orange provides homogeneous staining of all chromosomes. A brief review of the chromosome study of parasitoids of the family Figitidae, which have n = 5 to 11, is given. The haploid karyotype of ten chromosomes apparently represents the ancestral character state at least for the subfamily Eucoilinae, with chromosome sets that include n = 9 and the very large first metacentric, likely result from independent chromosomal fusions.

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