Evolution and role of neo-sex chromosomes in mitonuclear co-evolution

新性染色体的进化及其在线粒体核协同进化中的作用

• 批准号: DP210102275
• 负责人: Prof Paul Sunnucks
• 金额: $ 28.05万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-07-22 至 2024-07-21
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP210102275
• 关键词: Evolution; role; neo; sex; chromosomes

This project aims to characterize the evolution of novel, extended sex chromosomes in an Australian bird, then elucidate their role in climate-associated adaptive evolution. The species falls into two lineages bearing distinct mitochondrial genomes and nuclear-encoded mitochondrial genes carried on sex chromosomes. The project aims to test whether this extraordinary genome arrangement is splitting the species into two forms: one adapted to hotter, drier environments, one to milder ones. This would be tackled using an innovative combination of genomics, cytogenetics, and metabolic data. Understanding the mechanisms at play would represent a major advance in ecology and evolution, with potential implications for conservation management.

本项目旨在描述一种澳大利亚鸟类的新型延长性染色体的进化特征，然后阐明它们在气候相关的适应性进化中的作用。该物种分为两种谱系，具有不同的线粒体基因组和携带在性染色体上的核编码线粒体基因。该项目旨在测试这种不寻常的基因组排列是否将物种分为两种：一种适应更热、更干燥的环境，另一种适应更温和的环境。这将使用基因组学、细胞遗传学和代谢数据的创新组合来解决。了解起作用的机制将代表生态学和进化的重大进步，对保护管理有潜在的影响。