| 项目编号: | 1500911
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| 项目名称: | DISSERTATION RESEARCH: Consequences of sympatry and allopatry for variation in reproductive genes of Drosophila pseudoobscura |
| 作者: | Leonie Moyle
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| 承担单位: | Indiana University
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| 批准年: | 2014
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| 开始日期: | 2015-06-01
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| 结束日期: | 2016-05-31
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| 资助金额: | USD20143
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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: | gene
; reproductive gene
; mate choice
; species
; gene expression variation
; natural variation
; genetic variation
; same gene
; genetic change
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| 英文摘要: | Many factors influence mate choice in both plants and animals, including choosing a mate that will provide the best quality offspring while avoiding individuals of different species. The integration of these factors into a single choice implies that traits involved in mate selection within species could be the same traits that cause species to diverge from one another. Recently, the investigators used genetically modified Drosophila melanogaster to show that the same genes that control within species mate choice are also involved in species discrimination. This project is testing this association in a natural system, to understand how different populations accumulate changes in genes that control mate choice and species discrimination. These data will provide insight into the molecular mechanisms underlying natural variation in mate choice and the formation of reproductively isolated populations, which are important factors in understanding how new species arise over evolutionary time.
The proposed research will examine DNA sequence and gene expression variation in reproductive genes in natural populations of the fruit fly Drosophila pseudoobscura, using high depth nucleotide sequencing. The experiment contrasts genetic changes that have occurred in populations that co-occur with closely related species, and thus must discriminate against them during mate choice, with changes in populations that are not exposed to other species. Analyses will assess genetic variation across all reproductive genes, as well as specifically in genes known to affect gamete competition. These variants will be associated with phenotypic data on mate choice within and between species, to differentiate genes that are important to mate choice, to species discrimination, and to both reproductive behaviors. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94479
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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: | |
Leonie Moyle. DISSERTATION RESEARCH: Consequences of sympatry and allopatry for variation in reproductive genes of Drosophila pseudoobscura. 2014-01-01.
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