ABR: Inherited Microorganisms and Reproductive Isolation in Insects

ABR：昆虫的遗传微生物和生殖隔离

• 批准号: 9707665
• 负责人: John Werren
• 金额: $ 25万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-15 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9707665&HistoricalAwards=false
• 关键词: ABR; Inherited; Microorganisms; Reproductive; Isolation

9707665 Werren Wolbachia are a widespread group of intracellular bacteria that are found in the reproductive tissues of many invertebrates. These bacteria are "inherited" through the eggs and alter reproduction of their hosts in several interesting ways. For example, many strains of Wolbachia cause "cytoplasmic incompatibility" an incompatibility between sperm and egg that causes destruction of paternal chromosomes and prevents development of the embryo. Wolbachia are of special interest because they may accelerate the formation of new species, and are of wide interest as potential agents for insect pest control and for studying fertilization and early development. Research here focuses on the question "Are Wolbachia involved in reproductive isolation between populations and species (i.e. are they a mechanism of speciation)?". The proposed research will address this question in a series of laboratory and natural population experiments By combining studies of natural systems and experimental populations, this research should contribute significantly to our understanding of the potential role of Wolbachia in causing reproductive isolation, and the ability of Wolbachia to move between closely related species.

9707665 Werren Wolbachia 是一组分布广泛的细胞内细菌，存在于许多无脊椎动物的生殖组织中。 这些细菌通过卵“遗传”，并以几种有趣的方式改变宿主的繁殖。例如，许多沃尔巴克氏体菌株会导致“细胞质不相容”，即精子和卵子之间的不相容，导致父本染色体破坏并阻止胚胎发育。沃尔巴克氏体之所以受到特别关注，是因为它们可以加速新物种的形成，并且作为害虫控制和研究受精和早期发育的潜在试剂而受到广泛关注。 这里的研究重点是“沃尔巴克氏体是否参与种群和物种之间的生殖隔离（即它们是物种形成机制）吗？”。 拟议的研究将在一系列实验室和自然种群实验中解决这个问题。通过结合自然系统和实验种群的研究，这项研究将大大有助于我们理解沃尔巴克氏体在造成生殖隔离中的潜在作用，以及沃尔巴克氏体在密切相关的物种之间移动的能力。