Comparative analysis of host-shift speciation in the redheaded pine sawfly, Neodiprion lecontei (Hymenoptera: Diprionidae)

红头松叶蜂 Neodiprion lecontei（膜翅目：双叶蜂科）寄主转移物种形成的比较分析

基本信息

批准号：
1257739
负责人：
Catherine Linnen
金额：
$ 60万
依托单位：
University of Kentucky Research Foundation
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2013
资助国家：
美国
起止时间：
2013-04-01 至 2017-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1257739&HistoricalAwards=false
关键词：
Comparative analysis host shift speciation

项目摘要

The proposed research aims to understand how plant-feeding insects adapt to their host plants and the extent to which this process leads to the formation of new species in nature. Whereas most pine sawflies feed only on a single type of pine, the redheaded pine sawfly (RHPS) is a major pest of multiple pine species throughout eastern North America. Using a combination of fieldwork, laboratory experiments, and DNA sequencing, the proposed project will determine whether: (1) RHPS are adapted to different pine species, (2) RHPS from different pines are genetically distinct, and (3) RHPS from different pines can produce offspring together, which will indicate whether these are distinct, unrecognized species.Comprising ~25% of all species, plant-feeding insects are among the most diverse organisms on Earth. By describing how insects adapt to host plants and determining the link between adaptation and species formation, the proposed research will help explain the origin of a sizeable fraction of biodiversity. At an applied level, determining whether RHPS is comprised of multiple unrecognized species will have direct implications for managing outbreaks of this destructive pest. Additionally, this project's integrative nature provides an ideal training environment for undergraduate and graduate students. Finally, because host plant adaptation is an intuitive process and RHPS is part of the local fauna, this research can be used to convey basic evolutionary principles to Biology students. To this end, a related teaching module (lesson plans, presentations, activities, and assignments) will be developed and assessed in high schools in eastern Kentucky.

拟议的研究旨在了解植物喂养昆虫如何适应其宿主植物以及该过程导致自然界中新物种形成的程度。尽管大多数松树锯片仅以单一类型的松树为食，而红发的松树锯蝇（RHP）是整个北美东部多种松树的主要害虫。 Using a combination of fieldwork, laboratory experiments, and DNA sequencing, the proposed project will determine whether: (1) RHPS are adapted to different pine species, (2) RHPS from different pines are genetically distinct, and (3) RHPS from different pines can produce offspring together, which will indicate whether these are distinct, unrecognized species.Comprising ~25% of all species, plant-feeding insects are among the most diverse organisms on 地球。通过描述昆虫如何适应宿主植物并确定适应性与物种形成之间的联系，拟议的研究将有助于解释相当大的生物多样性的起源。在应用的水平上，确定RHP是否由多种未识别的物种组成，将对管理这种破坏性害虫的爆发有直接的影响。此外，该项目的综合性质为本科生和研究生提供了理想的培训环境。最后，由于寄主植物适应是一个直观的过程，而RHP是当地动物区系的一部分，因此该研究可用于将基本进化原理传达给生物学学生。为此，将在肯塔基州东部的高中制定和评估相关的教学模块（课程计划，演示，活动和作业）。

项目成果

期刊论文数量（5）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Body size as a magic trait in two plant-feeding insect species

DOI：
10.1101/2022.10.11.511791
发表时间：
2022-10
期刊：
bioRxiv
影响因子：
0
作者：
Ashleigh N. Glover;E. Bendall;J. W. Terbot;Nicole Payne;Avery Webb;Ashley Filbeck;Gavin Norman;C. Linnen
通讯作者：
Ashleigh N. Glover;E. Bendall;J. W. Terbot;Nicole Payne;Avery Webb;Ashley Filbeck;Gavin Norman;C. Linnen

Faster‐haplodiploid evolution under divergence‐with‐gene‐flow: Simulations and empirical data from pine‐feeding hymenopterans

基因流分化下更快的单倍二倍体进化：松树饲养膜翅目动物的模拟和经验数据