| 项目编号: | 1354975
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| 项目名称: | SG: Genome-wide analysis of phylogenetic conflict in the wheat tribe, Triticeae |
| 作者: | Roberta Mason-Gamer
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| 承担单位: | University of Illinois at Chicago
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| 批准年: | 2013
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| 开始日期: | 2014-03-01
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| 结束日期: | 2018-02-28
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| 资助金额: | USD149794
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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: | species
; genome
; wheat tribe
; data analysis
; gene exchange
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| 英文摘要: | The wheat tribe, Triticeae, comprises about 350 grass species, including wheat, barley, and rye. Genetic exchange among species has played a major role in the group?s complicated evolutionary history, so a clear understanding of the relationships among species remains elusive. In species that exchange genetic material, the genomes can be mosaics derived from multiple sources, and as a result, evolutionary relationships inferred from genetic data can differ depending on which portion of the genome is used for the inference. Gene exchange has been convincingly implicated in the Triticeae, but the extent is still unknown. This research addresses the question by applying a genome-wide approach, sampling large numbers of short DNA sequences from throughout the entire genome from a broad sample of Triticeae species. The density of genome sampling, combined with the ability to determine the genomic location of the sampled sequences, will lead to a better assessment of the extent of genetic exchange, including which species are involved, and which regions of the genome are most affected.
The results of this work will be informative to Triticeae breeders who rely on the processes of hybridization and gene exchange as tools for crop improvement. The methods of data analysis developed in this project will be useful for studies of other groups of organisms that undergo gene exchange. The funding will support training for one graduate student, along with discussion groups and training for a selected group of undergraduates from Olive-Harvey College, a minority-serving two-year college in Chicago. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/97322
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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: | |
Roberta Mason-Gamer. SG: Genome-wide analysis of phylogenetic conflict in the wheat tribe, Triticeae. 2013-01-01.
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