NSF Postdoctoral Fellowship in Biology: Genomic-Phenomic Convergence of Andean and Himalayan Elevational Migrant Birds

美国国家科学基金会生物学博士后奖学金：安第斯山脉和喜马拉雅高地候鸟的基因组-表型趋同

• 批准号: 2208924
• 负责人: Jessie Williamson
• 金额: $ 20.7万
• 依托单位: Williamson, Jessie L
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2208924&HistoricalAwards=false
• 关键词: NSF; Postdoctoral; Fellowship; Biology; Genomic

________________________________________________________________________________________________________________________________________This action funds an NSF Postdoctoral Research Fellowship in Biology for FY 2022, Integrative Research Investigating the Rules of Life Governing Interactions Between Genomes, Environment and Phenotypes. The fellowship supports research and training of the fellow that will contribute to the area of Rules of Life in innovative ways. Elevational niche-shift migration is an uncommon behavior involving seasonal elevational shifts of 2,000 meters or more. This behavior, which has evolved in at least 30 families of birds, illustrates extreme seasonal physiological flexibility, whereby certain populations can acclimatize to environments that differ starkly in temperature, pressure, air density, UV exposure, and communities of interacting species. The fellow will investigate how parallel evolution of bird genomes, in conjunction with phenotypic flexibility, may have shaped repeated evolution of elevational niche-shift migration across the Andes and Himalayas. The fellow will consider the causes and consequences of elevational niche-shift migration from the perspectives of ecology, evolution, and physiology, and at various spatial and phylogenetic scales of comparison. The project will generate valuable museum specimens that include frozen tissues, as well as detailed data on genomes, physiology, and migration. This research will provide understanding of how animals can cope with and adjust to profound environmental change that is experienced during the lifetime of individuals.Comparative biology using phylogenies becomes enormously powerful when genome or transcriptome sequences are combined with diverse trait and performance data. This approach can reveal mechanisms that underpin physiology, behavior, and many aspects of biodiversity. The fellow will sample species from across the avian phylogeny and use whole-genome data to test for predictable patterns of molecular evolution in bird populations that undergo elevational niche-shift migration in the Andes and Himalayas, respectively. As a second comparative test, the fellow will assess the degree to which permanent high-altitude resident species undergo parallel or anti-parallel evolution with species that migrate to high altitudes seasonally. In the field, the fellow will manipulate partial pressure of oxygen to quantify transcriptomic plasticity among low-altitude residents, high-altitude residents, and elevational migrant species, and will evaluate whether elevational shifts predict degree of plasticity. To broaden the impact of the research, the fellow will: 1) mentor and train undergraduate students from underrepresented groups; 2) teach specimen preparation workshops to students and researchers in Peru; 3) contribute to natural history collections growth, infrastructural and procedural upgrades, and outreach efforts at the Cornell University Museum of Vertebrates and Centro de Ornitología y Biodiversidad; and 4) publish popular articles that improve the accessibility of complex evolutionary phenomena.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

________________________________________________________________________________________________________________________________________该行动资助了2022财年的NSF生物学博士后研究奖学金，即调查基因组，环境和表型之间相互作用的生命规则的综合研究。该研究金支持研究员的研究和培训，以创新的方式为生活规则领域做出贡献。海拔生态位迁移是一种罕见的行为，涉及2,000米或更高的季节性海拔迁移。这种行为已经在至少30个鸟类家族中进化出来，说明了极端的季节性生理灵活性，某些种群可以适应温度，压力，空气密度，紫外线照射和相互作用物种群落的环境。该研究员将研究鸟类基因组的平行进化以及表型灵活性如何影响跨越安第斯山脉和喜马拉雅山的海拔生态位迁移的重复进化。该研究员将考虑海拔生态位迁移的原因和后果，从生态学，进化和生理学的角度，并在各种空间和系统发育尺度的比较。该项目将产生有价值的博物馆标本，包括冷冻组织，以及基因组，生理学和迁移的详细数据。这项研究将提供动物如何科普和适应个体一生中经历的深刻环境变化的理解。当基因组或转录组序列与不同的性状和性能数据相结合时，使用遗传学的比较生物学变得非常强大。这种方法可以揭示生理学，行为和生物多样性的许多方面的基础机制。这位研究员将从鸟类的进化史中抽取物种样本，并使用全基因组数据来测试鸟类种群中可预测的分子进化模式，这些鸟类种群分别在安第斯山脉和喜马拉雅山脉经历了海拔生态位迁移。作为第二个比较试验，该研究员将评估永久性高海拔居民物种与季节性迁移到高海拔的物种进行平行或反平行进化的程度。在该领域，研究员将操纵氧分压来量化低海拔居民，高海拔居民和海拔移民物种之间的转录组可塑性，并将评估海拔变化是否预测可塑性程度。为了扩大研究的影响，该研究员将：1）指导和培训来自代表性不足群体的本科生; 2）在秘鲁为学生和研究人员举办标本制备讲习班; 3）促进自然历史收藏品的增长、基础设施和程序升级，以及康奈尔大学脊椎动物博物馆和鸟类学与生物多样性中心的外联工作;以及4）发表提高复杂进化现象的可及性的流行文章。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Blood variation implicates respiratory limits on elevational ranges of Andean birds

• DOI: 10.1086/723222
• 发表时间: 2021-10
• 期刊: bioRxiv
• 作者: E. Linck;J. Williamson;Emil Bautista;Elizabeth J. Beckman;Phred M. Benham;S. DuBay;L. Flores;Chauncey R. Gadek;A. Johnson;Matthew R. Jones;Jano Núñez-Zapata;Alessandra Quiñonez;C. J. Schmitt;D. Susanibar;Tiravanti C. Jorge;K. Verde-Guerra;N. A. Wright;T. Valqui;J. F. Storz;C. Witt

Intra‐ and interspecific nest stacking in marsh‐dwelling songbirds

沼泽栖息鸣禽的种内和种间巢堆积

• DOI: 10.1111/btp.13154
• 发表时间: 2022
• 期刊: Biotropica
• 影响因子: 2.1
• 作者: Gadek, Chauncey R.;Williamson, Jessie L.;Witt, Christopher C.
• 通讯作者: Witt, Christopher C.