| 项目编号: | 1403150
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| 项目名称: | DISSERTATION RESEARCH: Uncovering the geographic pattern of species evolution in Madagascar using the myrrh genus (Commiphora Jacq.) and a target-enriched nuclear genomic approach |
| 作者: | Andrea Weeks
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| 承担单位: | George Mason University
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| 批准年: | 2013
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| 开始日期: | 2014-07-01
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| 结束日期: | 2016-06-30
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| 资助金额: | USD19309
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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: | research
; species
; species diversification
; myrrh tree genus
; other species
; evolutionary history
; western madagascar
; endemic species
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| 英文摘要: | In the last decade, scientific exploration of Madagascar's remarkable biodiversity and its origin has shifted to characterizing the drivers of evolution within the island. This project will use two endemic lineages of the myrrh tree genus (50 spp., Commiphora, Burseraceae) as models to test hypotheses regarding the influence of geography on species diversification in the seasonally dry tropical forests of western Madagascar. These hypotheses predict that species have arisen as a consequence of isolation caused by 1) watershed expansion and contraction, 2) river barriers, and 3) historical climate change. A subset of 959 nuclear genes will be sampled from all endemic species using a cost-effective high-throughput method that combines microfluidic amplification and massively-parallel sequencing. The resulting data will be used to reconstruct the evolutionary history of these species and will be combined with specimen-based mapping to test the overarching biogeographical hypotheses.
Genomic markers developed as part of this research will also be evaluated for their transferability to other species across the angiosperm tree of life, which may expand the methodological toolkit for all plant systematists. This research will provide mentorship opportunities for two undergraduate students and will support their professional development, including presentation of their research at a national meeting. Additional outreach will be provided to involve K-12 and undergraduate students through ongoing mentorship activities. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96496
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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: | |
Andrea Weeks. DISSERTATION RESEARCH: Uncovering the geographic pattern of species evolution in Madagascar using the myrrh genus (Commiphora Jacq.) and a target-enriched nuclear genomic approach. 2013-01-01.
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