The rare occurrence of redfish (genus Sebastes) in the White Sea encouraged Rolskii et al. (Polar Biol 43:385–389, 2020) to investigate the species identity of two animals captured near the Sredniy Island at 40 m depth. They reported that their morphological description proved unreliable and that genetic evidence “clearly demonstrated” these redfish belong to S. norvegicus. This was inferred using the S7 and the mitochondrial control region genes. However, while their S7 matched one S. norvegicus reference sequence, the S. norvegicus mitochondrial reference sequences used to infer species identity were previously shown to cluster with S. mentella. Therefore, both of their redfish samples belong to a S. norvegicus × S. mentella (deep-pelagic) hybrid which presents an interesting perspective into the complex species dynamics in this group.

中文翻译：

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白海红鱼（Sebastes 属）的分子鉴定表明渐进杂交模式

白海罕见的红鱼（Sebastes 属）鼓励了 Rolskii 等人。(Polar Biol 43:385–389, 2020) 调查在 Sredniy 岛附近 40 m 深度捕获的两只动物的物种身份。他们报告说，他们的形态描述被证明是不可靠的，遗传证据“清楚地证明”这些红鱼属于 S. norvegicus。这是使用 S7 和线粒体控制区基因推断出来的。然而，虽然它们的 S7 与一个 S. norvegicus 参考序列相匹配，但用于推断物种身份的 S. norvegicus 线粒体参考序列先前已显示与 S. mentella 聚类。因此，他们的两个红鱼样本都属于 S. norvegicus × S. mentella（深海-远洋）杂交种，这为该组复杂的物种动态提供了一个有趣的视角。