Newly discovered colour-pattern polymorphism of Bombus koreanus females (Hymenoptera: Apidae) demonstrated by DNA barcoding
Newly discovered colour-pattern polymorphism of Bombus koreanus females (Hymenoptera: Apidae) demonstrated by DNA barcoding
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DOI：
10.1007/s13592-014-0319-9
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发表时间：
2015-03-01
期刊：
影响因子：
2.4
通讯作者：
Williams, Paul H.
中科院分区：
文献类型：
--
作者：
Huang, Jiaxing;Wu, Jie;Williams, Paul H.
大黄蜂（Megabombus） koreanus （Skorikov）是一种长舌大黄蜂，专门访问深花。为了描述朝鲜圆蝽的分布、花色变异和食用植物，我们采集了朝鲜圆蝽的标本，并获得了DNA细胞色素氧化酶I （COI）条形码。贝叶斯系统发育分析表明，韩国B. koreanus是最近分化的种之一，是Bombus consobrinus的姊妹种。我们的研究结果表明，具有以前未知颜色图案的标本也属于韩国B.。我们描述了工蜂的九种不同的颜色模式和蜂王的三种不同的颜色模式，其中胸部的毛发从黑色到橙棕色不等。然而，在COI和颜色模式变化之间缺乏协变。有记录显示，北蝽曾访问过11种食用植物，表明北蝽具有聚电性。我们的研究结果表明，COI条形码是研究密切相关的分类群和识别具有不同颜色图案的物种的有效方法。
Bombus (Megabombus) koreanus (Skorikov) is a long-tongued bumblebee that specialises in visiting deep flowers. To describe the distribution, colour-pattern variation and food plants of B. koreanus, we collected specimens and DNA cytochrome oxidase I (COI) barcodes were obtained. Bayesian phylogenetic analysis of barcodes for Megabombus species shows that B. koreanus is one of the more recently diverged species and the sister species to Bombus consobrinus. Our results show that specimens with previously unknown colour patterns also belong to B. koreanus. We describe nine different colour patterns for workers and three for queens, in which the hair of the thorax varies from black to orange-brown. However, there is a lack of covariation between COI and colour-pattern variation. B. koreanus has been recorded to visit 11 species of food plants showing that B. koreanus is polylectic. Our results demonstrate that COI barcoding is an effective method for studying closely related taxa and for recognising species with variable colour patterns.