Collaborative Research: RoL: The intersection between cell fate decisions and phenotypic diversification in a rapidly radiating butterfly lineage

合作研究:RoL:快速辐射蝴蝶谱系中细胞命运决定和表型多样化之间的交叉点

基本信息

  • 批准号:
    2110532
  • 负责人:
  • 金额:
    $ 74.75万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2021
  • 资助国家:
    美国
  • 起止时间:
    2021-08-15 至 2025-07-31
  • 项目状态:
    未结题

项目摘要

Animal structures are made of combinations and arrangements of distinct cell types, the product of complex cell decision-making during development. But how do cells, which contain identical genetic information, decide their fate? This research addresses this fundamental biological question in a simple, yet spectacularly diverse animal structure–the color patterns on the wings of Heliconius butterflies. Although Heliconius wing patterns are highly diverse, they are created by altering the distribution of just three cell types (red, black and yellow wing scales) across the wing surface. Unlike in a complex organ, the cell decisions that create these patterns unfold on a flat canvas of non-migrating cells. This attribute greatly simplifies the process of understanding the interactions among genes and how these interactions change throughout development to create a specific pattern. This research capitalizes on this fact and emerging genomic tools to characterize the molecular decisions that determine how a developing wing cell becomes specified into one of the three different scale cell types. The project is strengthened by a 6-month internship program that targets traditionally underrepresented groups and offers an in-depth research experience and hands-on professional development. Moreover, through partnerships with science museums, this project will create bilingual (English and Spanish) experiential learning resources that harness the potential of butterflies to educate a variety of audiences (school children, teachers, and life-long learners) about genes, development, natural selection, and the role that interactions among them play in generating Earth’s biodiversity.Evolutionary processes constantly generate and rearrange specialized cell types, forging the morphological dimension of biodiversity. Research is starting to connect changes in gene expression and open chromatin to cell fate decisions. However, this research has mostly focused on early embryonic development or on the developmental trajectories of complex organs in a few species. Although powerful, these studies do not have an explicit goal of linking changes in cell fate decisions to phenotypic change. This research fills this important knowledge gap by characterizing the rules governing cell specification– from signals, to reception, transduction, transcriptional activation, and fate determination during the critical developmental period when the wing patterns of Heliconius butterflies are established. Here, extensive knowledge of the ecological and evolutionary significance of wing color patterns, experimental tractability, and fantastic diversity make Heliconius a powerful experimental system for understanding how the processes of cell specification are modified by natural selection to produce diversity. By casting single-cell transcriptomics, open chromatin profiling and CRISPR loss-of-function experiments within an evolutionary framework that includes replicated cases of the independent evolution of identical wing patterns, this project will determine the rules that govern how cells communicate and acquire a specialized fate during development, and how those rules are applied to generate diversity.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.
动物的结构是由不同细胞类型的组合和排列组成的,是发育过程中复杂细胞决策的产物。但是,含有相同遗传信息的细胞如何决定它们的命运呢?这项研究解决了这个基本的生物学问题,在一个简单的,但异常多样的动物结构-颜色模式的翅膀上的Heliconius蝴蝶。虽然Heliconius的翅膀图案是高度多样化的,但它们是通过改变三种细胞类型(红色,黑色和黄色翅膀鳞片)在翅膀表面的分布而形成的。与复杂器官不同,创造这些模式的细胞决定在非迁移细胞的平坦画布上展开。这个属性大大简化了理解基因之间的相互作用以及这些相互作用在整个发育过程中如何变化以创建特定模式的过程。这项研究利用这一事实和新兴的基因组工具来表征决定发育中的翼细胞如何被指定为三种不同规模细胞类型之一的分子决定。该项目通过为期6个月的实习计划得到加强,该计划针对传统上代表性不足的群体,并提供深入的研究经验和实践专业发展。此外,通过与科学博物馆的合作,该项目将创建双语(英语和西班牙语)体验式学习资源,利用蝴蝶的潜力教育各种受众(学生,教师和终身学习者)关于基因,发展,自然选择,以及它们之间的相互作用在产生地球生物多样性中所起的作用。进化过程不断地产生和重新排列专门的细胞类型,锻造生物多样性的形态维度。研究开始将基因表达和开放染色质的变化与细胞命运决定联系起来。然而,这项研究主要集中在早期胚胎发育或少数物种复杂器官的发育轨迹上。尽管这些研究很有说服力,但并没有明确的目标将细胞命运决定的变化与表型变化联系起来。这项研究填补了这一重要的知识空白,通过表征管理细胞规格的规则-从信号,到接收,转导,转录激活和命运决定在关键的发展时期,当Heliconius蝴蝶的翅膀模式建立。在这里,广泛的知识的生态和进化意义的翅膀的颜色模式,实验的易处理性,和奇妙的多样性,使Heliconius一个强大的实验系统,了解细胞规格的过程是如何修改的自然选择,以产生多样性。通过在进化框架内进行单细胞转录组学,开放染色质分析和CRISPR功能丧失实验,该框架包括相同翅膀模式独立进化的复制案例,该项目将确定管理细胞如何通信的规则,并在发育过程中获得专门的命运,该奖项反映了NSF的法定使命,并被认为值得通过使用基金会的知识价值和更广泛的影响进行评估来支持审查标准。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
High level of novelty under the hood of convergent evolution
  • DOI:
    10.1126/science.ade0004
  • 发表时间:
    2023-03-10
  • 期刊:
  • 影响因子:
    56.9
  • 作者:
    Belleghem, Steven M. Van;Ruggieri, Angelo A.;Papa, Riccardo
  • 通讯作者:
    Papa, Riccardo
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William McMillan其他文献

Retightening Revision of a Previous MACS Lift Meloplasty
  • DOI:
    10.1007/s00266-009-9463-4
  • 发表时间:
    2010-01-29
  • 期刊:
  • 影响因子:
    2.800
  • 作者:
    Brigid Corrigan;William McMillan;Morris Ritz
  • 通讯作者:
    Morris Ritz
Liposuction-Assisted Brachio-cephalic Fistula in the Morbidly Obese: Functional Patency and Reimbursement
  • DOI:
    10.1016/j.jvs.2013.08.071
  • 发表时间:
    2013-11-01
  • 期刊:
  • 影响因子:
  • 作者:
    William McMillan;Chantel Hile
  • 通讯作者:
    Chantel Hile
Minimizing Lymphoceles After Femoral Artery Exposure Using LigaSure
  • DOI:
    10.1016/j.jvs.2023.01.101
  • 发表时间:
    2023-04-01
  • 期刊:
  • 影响因子:
  • 作者:
    William McMillan
  • 通讯作者:
    William McMillan
Intracranial Hodgkin’s lymphoma in an HIV positive patient
  • DOI:
    10.1007/s11060-008-9587-4
  • 发表时间:
    2008-04-09
  • 期刊:
  • 影响因子:
    3.100
  • 作者:
    Kevin Ramchandar;L. H. Verhey;Neilank K. Jha;N. K. Murty;William McMillan
  • 通讯作者:
    William McMillan

William McMillan的其他文献

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{{ truncateString('William McMillan', 18)}}的其他基金

RoL: Collaborative Proposal: Integrating responses to environmental change across the biological hierarchy: interactions between behavior, plasticity, and genetic change
RoL:协作提案:整合整个生物层次对环境变化的响应:行为、可塑性和遗传变化之间的相互作用
  • 批准号:
    2024109
  • 财政年份:
    2020
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Standard Grant
REU Site: Integrative Tropical Biology at the Smithsonian Tropical Research Institute in Panama
REU 站点:巴拿马史密森尼热带研究所的综合热带生物学
  • 批准号:
    1359299
  • 财政年份:
    2014
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Standard Grant
Collaborative Proposal: Genomics across the speciation continuum in Heliconius butterflies
合作提案:Heliconius 蝴蝶物种形成连续体的基因组学
  • 批准号:
    1257689
  • 财政年份:
    2013
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Standard Grant
MRI: Acquisition of massively deep-read sequencing technology at NCSU
MRI:在北卡罗来纳州立大学获得大规模深度读取测序技术
  • 批准号:
    0923119
  • 财政年份:
    2009
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Standard Grant
The Genetic Signature of Adaptation in Heliconius erato
Heliconiuserato适应的遗传特征
  • 批准号:
    0844244
  • 财政年份:
    2009
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Continuing Grant
The Developmental Architecture of Wing Pattern Variation in Heliconius Erato
Heliconius Erato 翼型变异的发育结构
  • 批准号:
    0737233
  • 财政年份:
    2007
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Continuing Grant
Collaborative Research: Molecular Basis of Mimicry in Heliconius Butterflies
合作研究: Heliconius 蝴蝶拟态的分子基础
  • 批准号:
    0715096
  • 财政年份:
    2007
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Standard Grant
The Developmental Architecture of Wing Pattern Variation in Heliconius Erato
Heliconius Erato 翼型变异的发育结构
  • 批准号:
    0344705
  • 财政年份:
    2004
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Continuing Grant
The Genetic Architecture of Color Pattern Evolution in Heliconius erato
Heliconiuserato 颜色图案进化的遗传结构
  • 批准号:
    9806792
  • 财政年份:
    1998
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Continuing Grant
Theory of Phase Transitions and Amorphous Materials (Materials Research)
相变理论和非晶材料(材料研究)
  • 批准号:
    8320094
  • 财政年份:
    1984
  • 资助金额:
    $ 74.75万
  • 项目类别:
    Continuing Grant

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Collaborative Research: RoL: The intersection between cell fate decisions and phenotypic diversification in a rapidly radiating butterfly lineage
合作研究:RoL:快速辐射蝴蝶谱系中细胞命运决定和表型多样化之间的交叉点
  • 批准号:
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    2021
  • 资助金额:
    $ 74.75万
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