A cytogenetic study of Baryscapus silvestrii Viggiani et Bernardo, 2007 (Hymenoptera: Eulophidae) using base-specific fluorochrome staining

摘要

Chromosomes of Barys capus silvestrii Viggiani et Bernardo, 2007 (Eulophidae) with n = 6 and 2n = 12 were studied using base-specific fluoro-chrome staining. Chromomycin A_3 / 4', 6-diamidino-2-phenylindole (CMA_3/DAPI) staining revealed a single paired CMA_3-positive band within the diploid karyotype of B. silvestrii. This CG-rich segment apparently corresponds to the nucleolus organizing region (NOR). Certain features of karyotype evolution of parasitoids of the family Eulophidae are discussed.