| 项目编号: | 1407166
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| 项目名称: | DISSERTATION RESEARCH: Between-class gene flow in complex mating systems: The evolution of breeding systems in Silene vulgaris |
| 作者: | Edmund Brodie
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| 承担单位: | University of Virginia Main Campus
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| 批准年: | 2013
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| 开始日期: | 2014-06-01
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| 结束日期: | 2017-07-31
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| 资助金额: | USD19628
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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: | between-class gene flow
; natural system
; female
; between-class
; evolution
; gene flow
; such complex mating system
; plant silene vulgaris
; complex mating system
; work
; quantitative genetics
; genetic marker
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| 英文摘要: | In most plants and animals, males and females differ in size, shape, or color because natural selection drives the sexes in different directions. The evolution of this dimorphism is constrained by the mixing of genes among males and females during mating known as between-class gene flow. This work investigates the effects of between-class gene flow in a plant Silene vulgaris, in which individuals are either hermaphrodite or female. In species with such complex mating systems, the rates of between-class gene flow vary among populations, allowing their effects to be more easily detected. Using genetic markers, this work will estimate the strength of natural selection in hermaphrodites and females, as well as the patterns of gene flow among hermaphrodites and females for multiple populations. These estimates will be combined with estimates of heritability to determine if between-class gene flow limits the evolution of differences between sexes.
This work will test the importance of between-class gene flow as a factor affecting adaptation in natural systems. The understanding of this process will inform strategies for artificial selection of agriculturally important species such as cattle (Bos primigenius), in which males and females have different desired traits, and species with complex mating systems, such as maize (Zea mays). Finally, this work directly supports the training of a doctoral student as a researcher and mentor and provides opportunities for undergraduate students to engage in research in quantitative genetics and molecular ecology. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96740
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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: | |
Edmund Brodie. DISSERTATION RESEARCH: Between-class gene flow in complex mating systems: The evolution of breeding systems in Silene vulgaris. 2013-01-01.
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