Genealogical Analysis of Tropical Tree Populations
Genealogical Analysis of Tropical Tree Populations
批准号:
8918420
负责人:
James Hamrick
金额:
$24.3万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1990
资助国家:
美国
项目状态:
已结题
起止时间:
1990-03-15 至 1993-08-31
中文摘要
这项研究将研究那些引起 遗传变异在热带地区的分布 树 一种统计技术,家谱重建将 利用几个遗传位点来鉴定种子的亲本, 建立了幼苗。 一旦这些个体的父母 已经确定,有关的几个问题 发展和维持精细的遗传结构, 得到回答。 哈姆里克博士将能够测量 花粉移动,并确定花粉的迁移是否 在塑造人类的遗传组成方面起着重要作用, 这些人口。 他也将能够测量种子 分散距离并确定哪些成年个体是 有效地繁殖下一代。 这项研究的重要性在于它有可能提供 更好地了解在全球化进程中发挥作用的机制, 热带树种的生殖生物学。 这些信息 可用于有效设计和维护 保护区。 它也可能是重要的尝试, 热带森林在遭到破坏后得以再生。 最后, 这项研究将提供有关 热带树木群落的生态学和进化。
英文摘要
This research will study those factors that give rise to the distribution of genetic variation within populations of tropical trees. A statistical technique, genealogical reconstruction will utilize several genetic loci to identify the parents of seeds and established seedlings. Once the parents of these individuals have been identified, several questions concerning the development and maintenance of fine-scale genetic structure can be answered. Dr. Hamrick will be able to measure the distance pollen moves and to determine whether the immigration of pollen plays a significant role in shaping the genetic composition of these populations. He will also be able to measure seed dispersal distances and to determine which adult individuals are effective in reproducing the next generation. The importance of this research is its potential to provide a better understanding of the mechanisms that play a role in the reproductive biology of tropical tree species. This information could be used in the effective design and maintenance of conservation areas. It could also be important for attempts to regenerate tropical forests after their destruction. Finally, this research will provide basic information concerning the ecology and evolution of tropical tree communities.
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批准号:1938323
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项目类别:Standard Grant
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资助金额:$22.5万
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财政年份:2019
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DISSERTATION RESEARCH: Comparative phylogeography of neotropical trees
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Collaborative Research: Spatially and Temporally Explicit Breeding Structure Analyses for a Tropical Dry-Forest Tree Species, Enterolobium cyclocarpum
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批准号:0211526
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项目类别:Continuing Grant
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资助金额:$35.0万
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财政年份:2002
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负责人:James Hamrick
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依托单位:
Dissertation Research: Dispersal, Breeding Patterns, and Genetic Structure of an Epiphytic Orchid
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批准号:0104598
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项目类别:Standard Grant
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资助金额:$1.0万
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财政年份:2001
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负责人:James Hamrick
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Dissertation Research: Viability Selection at Three Early Life Stages of the Tropical Tree, Platypodium elegans
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批准号:9902041
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项目类别:Standard Grant
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资助金额:$0.88万
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财政年份:1999
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负责人:James Hamrick
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依托单位:
CRB: Predicting the Genetic Consequencies of the Fragmentation of Tropical Tree Populations
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批准号:9610275
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项目类别:Standard Grant
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资助金额:$22.3万
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财政年份:1997
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负责人:James Hamrick
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依托单位:
Collaborative Research: Comparative Breeding Structure of Four Species of Sonoran Desert Columnar Cactus
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批准号:9420254
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项目类别:Continuing Grant
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资助金额:$24.0万
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财政年份:1995
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负责人:James Hamrick
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依托单位:
Dissertation Research: Gene Flow and the Scale of Fragmentation in Tropical Tree Populations
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批准号:9520702
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项目类别:Standard Grant
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资助金额:$1.0万
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财政年份:1995
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负责人:James Hamrick
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依托单位:
Estimating Gene Flow into Tropical Forest Fragments
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批准号:9307878
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项目类别:Continuing Grant
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资助金额:$28.0万
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财政年份:1993
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负责人:James Hamrick
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依托单位:
Dissertation Research: Genetic Structure of an Old Growth Stand of Turkey Oak
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批准号:9016351
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项目类别:Standard Grant
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资助金额:$0.47万
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财政年份:1991
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负责人:James Hamrick
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依托单位:
Expanded Plant Growth Facility for the University of GeorgiaDivision of Biological Sciences
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批准号:9009002
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项目类别:Standard Grant
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资助金额:$41.83万
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财政年份:1990
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负责人:James Hamrick
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依托单位:
Dissertation Research: Gene Flow in Lathyrus latifolius
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批准号:8815210
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项目类别:Standard Grant
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资助金额:$0.85万
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财政年份:1989
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负责人:James Hamrick
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依托单位:
Collaborative Research: Genetic Structure of a Longleaf Pine Population
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批准号:8718803
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项目类别:Continuing Grant
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资助金额:$12.31万
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财政年份:1988
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负责人:James Hamrick
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依托单位:
The Breeding Structure of Three Tropical Tree Species
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批准号:8600083
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项目类别:Continuing Grant
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资助金额:$21.5万
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财政年份:1986
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负责人:James Hamrick
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依托单位:
Dissertation Research: Genetic Structure and Gene Flow in a Woody Perennial
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批准号:8514447
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:1985
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负责人:James Hamrick
-
依托单位:
Influence of Quaternary History on Genetic Structure of Conifer Populations in the Great Basin
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批准号:8320529
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项目类别:Standard Grant
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资助金额:$12.3万
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财政年份:1984
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负责人:James Hamrick
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依托单位:
Genetic Structure of Tropical Tree Populations
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批准号:8206946
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项目类别:Continuing Grant
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资助金额:$16.3万
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财政年份:1983
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负责人:James Hamrick
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依托单位:
Pollen Profiles and the Breeding System of Lodgepole Pine: A Collaborative Effort
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批准号:8213260
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:1982
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负责人:James Hamrick
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依托单位:
Doctoral Dissertation Research in Population Biology
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批准号:8018717
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项目类别:Standard Grant
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资助金额:$0.0万
-
财政年份:1981
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负责人:James Hamrick
-
依托单位:
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