权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

DISSERTATION RESEARCH: Evolution of diet breadth of Melissodes (Hymenoptera: Apidae)

论文研究： Melissodes（膜翅目：蜜蜂科）饮食宽度的演变

基本信息

批准号：
1402113
负责人：
Kelly Miller
金额：
$ 1.91万
依托单位：
University of New Mexico
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2014
资助国家：
美国
起止时间：
2014-06-01 至 2016-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1402113&HistoricalAwards=false
关键词：
DISSERTATION RESEARCH Evolution diet breadth

项目摘要

Native bees provide a diversity of ecosystem services, including the pollination of crops and wildflowers. Most of the 20,000 described species of bees are generalists and pollinate a large number of plants. The others are specialists and only pollinate specific plants. It was long thought that bees had evolved towards greater specialization from a generalized ancestor, but recent studies have shown that the evolution of generalization from specialist ancestors may be more common. This project will investigate the direction and frequency of changes in diet breadth within the bee genus Melissodes, which has 130 species and ranges from Canada to Argentina. Pollen will be collected from the legs of bees and identified by comparing Internal Transcribed Spacer DNA sequences isolated from the pollen samples to reference sequences in GenBank. Evolution of diet breadth within Melissodes will then be reconstructed using a well-supported molecular phylogeny as a framework.This award will train a doctoral student, Masters students and undergraduates, including members of underrepresented groups, in diverse systematics methods. This award will also develop an online key to help identification of different Melissodes bee species that can be used by both specialists and the general public.

本地蜜蜂提供多种生态系统服务，包括农作物和野花的授粉。所描述的 20,000 种蜜蜂中的大多数都是多面手，为大量植物授粉。其他人是专家，只为特定植物授粉。长期以来，人们一直认为蜜蜂是从广义祖先进化到更加专业化的，但最近的研究表明，从专业祖先进化到泛化可能更为常见。该项目将调查 Melissodes 蜂属中饮食宽度变化的方向和频率，该属有 130 个物种，分布范围从加拿大到阿根廷。将从蜜蜂的腿上收集花粉，并通过将从花粉样本中分离出的内部转录间隔区 DNA 序列与 GenBank 中的参考序列进行比较来进行鉴定。然后，将使用得到充分支持的分子系统学作为框架来重建 Melissodes 饮食宽度的进化。该奖项将以不同的系统学方法培训博士生、硕士生和本科生，包括代表性不足的群体的成员。该奖项还将开发一个在线密钥，以帮助识别不同的梅利索德蜂品种，可供专家和公众使用。