2012 Fiscal Year Final Research Report
Analysis of distribution history of forest trees based on DNA sequences from pollen grains in sediment samples
| Project/Area Number |
22658046
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Forest science
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
NAKAZAWA Fumio 大学共同利用機関法人情報・システム研究機構 (新領域融合研究センター、DBCLS), 新領域融合研究センター, 融合プロジェク ト特任研究員 (80432178)
|
|---|
| Research Collaborator |
PARDUCCI Laura Uppsala Univ. (Sweden), Evolutionary Biology Centre, Associate Professor
BENNET Keith D. Queen's University Belfast (UK), School of Geography, Archaeology & Palaeoecology, Professor
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 古代 DNA / 分子系統地理 / 花粉分析 / 針葉樹 / 湖底堆積物 / 山岳氷河 |
|---|
| Research Abstract |
We developed a method for DNA analysis of ancient pollen from lake sediments and glaciers to retrieve genetic information for past spatial dynamics of intra- and/or inter-specific lineage. We reported genetic analysis of fossil pollen collected from lake sediment in central Norway and showed that conifer trees survived in ice-free refugia of Scandinavia during the last glaciation. And we compared DNA- and pollen-based vegetation analysis of the lake sediment samples. We also reported DNA analysis of Pinus pollen grains collected from Belukha glacier in Russia and identified them at the section level in the genus. These results have major implications for plant phylogeography by allowing direct analysis of past genetic information in ancient pollen.
|
