The channel catfish (Ictalurus punctatus, Rafinesque) ovary (CCO) cell line is the standard cell line used for channel catfish diagnostics. Next‐gen sequencing studies of a virus cultured in the CCO cells revealed mitochondrial sequences matching those of brown bullhead (Ameiurus nebulosus, Lesueur). Therefore, we systematically performed partial cytochrome oxidase 1 gene sequencing of several sources of the CCO cell line and all matched the brown bullhead and not the channel catfish.

中文翻译：

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细胞色素氧化酶基因测序发现channel鱼卵巢细胞系被棕色牛头细胞污染

channel鱼（Ictalurus punctatus， Rafinesque）卵巢（CCO）细胞系是用于channel鱼诊断的标准细胞系。对在CCO细胞中培养的病毒进行的下一代测序研究表明，线粒体序列与棕色牛头（Ameiurus nebulosus， Lesueur）的线粒体序列匹配。因此，我们系统地对CCO细胞系的几种来源进行了细胞色素氧化酶1基因的部分测序，并且全部与棕色bull头匹配，而不与channel鱼匹配。