| 项目编号: | 1501373
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| 项目名称: | Dissertation Research: Evolutionary transitions: pollination biology and domestication of Artocarpus (Moraceae) |
| 作者: | Nyree Zerega
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| 承担单位: | Chicago Botanic Garden
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| 批准年: | 2014
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| 开始日期: | 2015-08-01
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| 结束日期: | 2017-07-31
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| 资助金额: | USD17882
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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
; transition
; artocarpus
; animal pollination
; pollination biology
; scientific research
; pollination shift
; insect-pollinated species artocarpus odoratissimus
; wind pollination
; important artocarpus crop
; artocarpus pollination
; domestication history
; tropical tree genus artocarpus
; insect pollination
; research opportunity
; reproductive biology
; wind-insect pollination transition
; evolutionary biology
; pollination mechanism
; wind
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| 英文摘要: | The rapid diversification and rise to dominance of angiosperms is one of the enduring mysteries of evolutionary biology. While coevolution with animal pollinators is a major driver of angiosperm diversity, the degree of advantage conferred by animal pollination over wind pollination has been controversial, and the rarity of appropriate study systems has hampered progress in understanding the consequences of this transition. This research uses the tropical tree genus Artocarpus (Moraceae)- one of the rare systems exhibiting transitions from wind to animal pollination - to investigate evolutionary implications of that shift. Artocarpus pollination ranges from wind to a unique mutualism mediated by parasitic fungi that provide a brood site and nutrition for fly pollinators. This project provides the opportunity to understand morphological characters associated with pollination shifts, challenge assumptions about reversions from wind to animal pollination, and expose characters that may have been involved in the early radiation of flowering plants as they co-evolved with their animal pollinators. Artocarpus contains several underutilized crops including breadfruit, jackfruit, and terap. This research will support efforts to develop and improve important Artocarpus crops by increasing understanding of their reproductive biology.
The project combines experimental pollinator-exclusion studies with morphological analysis to elucidate pollination mechanisms in Artocarpus and reveal morphological traits correlated with transitions between wind and insect pollination. These transitions will be combined with phylogenomic analyses for the group, to analyze changes in morphology in an evolutionary context, and to resolve the number and direction of wind-insect pollination transitions in Artocarpus. The research uses microsatellite DNA fingerprinting to uncover the domestication history of the insect-pollinated species Artocarpus odoratissimus, one of several underutilized tropical tree crops in this genus. Through collaborations in Malaysia, this project will promote scientific research on a group of underutilized crops in developing tropical regions and provide training in pollination biology to local scientists. The research will also provide research opportunities for undergraduates. The researchers will engage the public through displays at the Chicago Botanic Garden to promote awareness of pollination biology and tropical biodiversity. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93823
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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: | |
Nyree Zerega. Dissertation Research: Evolutionary transitions: pollination biology and domestication of Artocarpus (Moraceae). 2014-01-01.
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