Evolution of senescence in plants

植物衰老的进化

• 批准号: RGPIN-2015-05486
• 负责人: Laird, Robert
• 金额: $ 1.53万
• 依托单位: University of Lethbridge
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=631698
• 关键词: Evolution; senescence; plants

Senescence—bodily deterioration leading to an elevated risk of death and a lower rate of reproduction with advancing age—spans the tree of life, from bacteria to complex multi-cellular species. Despite its ubiquity, senescence is puzzling because all else being equal, natural selection should favour individuals that don't senesce over those that do. This apparent paradox makes senescence a topic of perennial interest in biology and inspires the long-term goal of my research program: to develop and test evolutionary theories of senescence, with an emphasis on aging in plants.

衰老——随着年龄的增长，导致死亡风险增加和繁殖率降低的身体退化——遍及生命之树，从细菌到复杂的多细胞物种。尽管衰老无处不在，但它仍然令人困惑，因为在其他条件相同的情况下，自然选择应该更青睐那些不会衰老的个体。这种明显的矛盾使衰老成为生物学中一个长期感兴趣的话题，并激发了我研究计划的长期目标：发展和测试衰老的进化理论，重点是植物的衰老。