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Systematics of Pamphiliinae feeding on broad-leaved trees and the evolution of their host preference and nest-building behavior

以阔叶树为食的 Pamphiliinae 的系统学及其寄主偏好和筑巢行为的演变

基本信息

批准号：
15570093
负责人：
SHINOHARA Akihiko
金额：
$ 2.05万
依托单位：
National Science Museum
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15570093/
关键词：
Hymenoptera Pamphiliidae Pamphiliinae broad-leaved trees as hosts systematics host preference nest-building bahavior

项目摘要

1. To enrich the material for study, adults and immature stages of Pamphiliine sawflies were collected in various regions of Hokkaido in June to July, 2003 to 2006, in various regions of Honshu and Shikoku in May to September, 2003 to 2006, and in Qinling Mountains, Shaanxi, China, in May to June, 2005. Some undescribed species and new information about the larval hosts and nest-building behavior were obtained.2. Mainly based on adult morphology, phylogenetic relationship of the species of the Pamphiliinae was analyzed using PAUP and MacClade. As a result, the monophyly of each genus and each species-group of Pamphilius as well as the previous hypothesis of their relationships (Shinohara, 2002) were generally supported. By incorporating the information of the host plants and nest-building behavior of each species into the cladogram, the following hypothesis was obtained. In the ancestral condition, larvae do not roll leaves but make a web-nest as in the species of Neurotoma, a genus characterized mainly by ancestral features also in morphology. From this primitive type evolved another type of larval nest, where the larva makes an irregular shelter by roughly folding the margin of a leaf ; this type of larval shelters are known for Onycholyda and some Pamphilius species. In many Pamphilius species, the larva makes a tube-like shelter by regularly and tightly rolling the leaf margin. This is further development. Basically, the eggs are laid on the under surface of a leaf and the larval shelter is made also on the under surface, whereas, in some species of the Pamphilius vafer group, the eggs and shelters are on the upper surface. The latter is a specialized state of oviposition and shelter making behavior.3. Part of new findings during the course of this study have been published in 19 separate papers.

1.为丰富研究资料，2003~2006年6~7月在北海道各地区采集了成虫和幼虫，2003~2006年5~9月在本州、四国等地采集了成虫和幼虫，2005年5~6月在陕西秦岭、中国等地采集了成虫和幼虫。获得了一些未被描述的种类和有关幼虫寄主和筑巢行为的新信息。以成虫形态为主要依据，利用PAUP和MacClade软件对该亚科的系统发育关系进行了分析。因此，该属各种群的单系性及其亲缘关系假说(Shinohara，2002)得到普遍支持。通过将寄主植物和每个物种的筑巢行为的信息纳入到分支图中，得到了以下假设。在祖先的条件下，幼虫不卷叶而是形成网巢，就像神经瘤的物种一样，在形态上也是一个以祖先特征为主要特征的属。从这种原始类型进化出另一种类型的幼虫巢，在那里幼虫通过粗略地折叠树叶的边缘来形成一个不规则的避难所；这种类型的幼虫避难所以甲胆纲和一些Pamopilius物种而闻名。在许多物种中，幼虫通过规则而紧密地卷起叶缘来形成管状的庇护所。这是进一步的发展。基本上，卵在树叶的下表面，幼虫的避难所也在下表面，而在一些种类的斑潜蝇中，卵和避难所在上表面。后者是一种产卵和遮蔽行为的专门状态。这项研究过程中的部分新发现已经发表在19篇不同的论文中。