The phylogeny of Sericini and their position within the Scarabaeidae based on morphological characters (Coleoptera: Scarabaeidae)
The phylogeny of Sericini and their position within the Scarabaeidae based on morphological characters (Coleoptera: Scarabaeidae)
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DOI：
10.1111/j.1365-3113.2005.00307.x
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发表时间：
2006-01-01
影响因子：
4.8
通讯作者：
Ahrens, D
中科院分区：
文献类型：
--
作者：
Ahrens, D
为了重建 Sericini 的系统发育及其在金龟子甲虫中的系统位置，对现存 49 个金龟子属的成虫和幼虫的 107 个形态特征进行了分支分析。类群代表了粪食性和植食性金龟子科的大多数“传统”亚科，重点是 Sericini 和其他 melolonthine 谱系。一些研究不足的外骨骼特征已经被检查，包括鞘翅基部、后翼脉络、口器、内骨、髋关节和生殖器。分析结果强烈支持“orphnine组”+“melolonthine组”的单系性，包括植食性圣甲虫，如Dynastinae、Hopliinae、Melolonthinae、Rutelinae和Cetoniinae。该分支被确定为以 Aphodius + Copris 为代表的“粪甲虫系”的姐妹群。 “melolonthine 群”由两个主要分支和两个次要谱系构成严格的共有树，其中包含的 Euchirinae、Rutelinae 和 Dynastinae 类群嵌套在一个主要分支（“melolonthine group I”）中。 Melolonthini、Cetoniinae 和 Rutelinae 得到强烈支持，而 Melolonthinae 和 Pachydemini 似乎是并系群。 Sericini + Ablaberini 被确定为嵌套在第二个主要 melolonthine 进化枝（“melolonthine group II”）内的姐妹类群。由于该支系主要分布在南部大陆，因此可以假设 Sericini + Ablaberini 源自南部血统。 Sericini + Ablaberini 和 Athlia 的祖先似乎是因替代事件而分开的，例如非洲板块与冈瓦纳其他地区的分离，而 Sericini 和 Ablaberini 可能在第三纪早期多样化，一些基底 Sericini 扩散到南美洲。
To reconstruct the phylogeny of the Sericini and their systematic position among the scarabaeid beetles, cladistic analyses were performed using 107 morphological characters from the adults and larvae of forty-nine extant scarabaeid genera. Taxa represent most 'traditional' subfamilies of coprophagous and phytophagous Scarabaeidae, with emphasis on the Sericini and other melolonthine lineages. Several poorly studied exoskeletal features have been examined, including the elytral base, posterior wing venation, mouth parts, endosternites, coxal articulation, and genitalia. The results of the analysis strongly support the monophyly of the 'orphnine group' + 'melolonthine group' including phytophagous scarabs such as Dynastinae, Hopliinae, Melolonthinae, Rutelinae, and Cetoniinae. This clade was identified as the sister group to the 'dung beetle line' represented by Aphodius + Copris. The 'melolonthine group' is comprised in the strict consensus tree by two major clades and two minor lineages, with the included taxa of Euchirinae, Rutelinae, and Dynastinae nested together in one of the major clades ('melolonthine group I'). Melolonthini, Cetoniinae, and Rutelinae are strongly supported, whereas Melolonthinae and Pachydemini appear to be paraphyletic. Sericini + Ablaberini were identified to be sister taxa nested within the second major melolonthine clade ('melolonthine group II'). As this clade is distributed primarily in the southern continents, one could assume that Sericini + Ablaberini are derived from a southern lineage. Plausibly, ancestors of Sericini + Ablaberini and Athlia were separated by a vicariance event, such as the separation of the African plate from the rest of Gondwana, whereas Sericini and Ablaberini probably diversified during the early Tertiary, with dispersal of some basal Sericini to South America.