| 项目编号: | 1500761
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| 项目名称: | DISSERTATION RESEARCH: The Genomic Nature of Adaptation in Anolis lizards |
| 作者: | Richard Glor
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| 承担单位: | University of Rochester
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| 批准年: | 2014
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| 开始日期: | 2015-05-15
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| 结束日期: | 2016-04-30
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| 资助金额: | USD19955
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Biological Sciences - Environmental Biology
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| 英文关键词: | adaptation
; adaptive radiation
; anolis lizard
; local adaptation
; many researcher
; anolis species
; genomic nature
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| 英文摘要: | Most of the biological diversity on Earth is thought to result from adaptive radiation, an evolutionary phenomenon where many new species are rapidly formed through colonization of and adaptation to new environments. The work of many researchers over the last fifty years has resulted in an emerging understanding of the broad-scale evolutionary patterns associated with adaptive radiation. Despite these advances, we have little understanding of the genetic processes that take place during adaptive radiation. For instance, it is not known how often new mutations are uniquely favored in one environment alone versus being beneficial to multiple species living in different habitats. This proposal addresses this gap in our knowledge using one of the most iconic examples of adaptive radiation, Anolis lizards from the West Indies. This research will focus on two Anolis species that reside on tree trunks?one living in a hot, dry environment, the other in a moist, cool forest. In a small area of the Dominican Republic, these different habitats are immediately adjacent to one another. Here, the two species interbreed and form hybrid offspring. These unique circumstances provide an opportunity to identify what gene variants are associated with adaptation to the two distinct environments and what variants are beneficial to both species.
To address the genomic nature of adaptation in Anolis lizards, the co-investigators will use next-generation sequencing technologies to collect transcriptome data from individuals of each species as well as hybrids. The genotypes derived from this sequencing will be used to perform genomic cline analyses, which identify parental alleles that are over- and underrepresented among hybrids. The results of genomic cline analyses will be combined with population genomic analyses to identify the frequency of global and local adaptations and provide a first insight into the microevolutionary processes associated with adaptive radiation. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94643
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Richard Glor. DISSERTATION RESEARCH: The Genomic Nature of Adaptation in Anolis lizards. 2014-01-01.
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