Ancient biomolecules from deep ice cores reveal a forested southern Greenland.

Ancient biomolecules from deep ice cores reveal a forested southern Greenland.
复制标题

DOI:
10.1126/science.1141758
复制
发表时间:
2007-07-06
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Collins MJ
Collins MJ
中科院分区:
其他
文献类型:
--
作者:
Willerslev E;Cappellini E;Boomsma W;Nielsen R;Hebsgaard MB;Brand TB;Hofreiter M;Bunce M;Poinar HN;Dahl-Jensen D;Johnsen S;Steffensen JP;Bennike O;Schwenninger JL;Nathan R;Armitage S;de Hoog CJ;Alfimov V;Christl M;Beer J;Muscheler R;Barker J;Sharp M;Penkman KE;Haile J;Taberlet P;Gilbert MT;Casoli A;Campani E;Collins MJ

文献摘要

参考文献

被引文献

相似文献

古生物学的主要困难之一是从覆盖着厚厚的冰川和冰原的10%的地球陆地表面获取化石数据。我们发现,埋藏生物的DNA和氨基酸可以从深冰芯的基底部分恢复,并允许重建过去的动植物群。我们展示了格陵兰岛南部的高海拔地区,目前位于两公里多的冰层下,曾经居住着各种各样的针叶树和昆虫,这些树木和昆虫的历史可以追溯到45万年前。研究结果提供了第一个直接证据,支持格陵兰岛南部有森林,并表明许多深冰芯的基底部分可能包含古环境的遗传记录。
One of the major difficulties in paleontology is the acquisition of fossil data from the 10% of Earth’s terrestrial surface that is covered by thick glaciers and ice sheets. Here we reveal that DNA and amino acids from buried organisms can be recovered from the basal sections of deep ice cores and allow reconstructions of past flora and fauna. We show that high altitude southern Greenland, currently lying below more than two kilometers of ice, was once inhabited by a diverse array of conifer trees and insects that may date back more than 450 thousand years. The results provide the first direct evidence in support of a forested southern Greenland and suggest that many deep ice cores may contain genetic records of paleoenvironments in their basal sections.
未来冰盖不稳定和海平面快速上升的古气候证据
DOI: 10.1126/science.1115159
发表时间: 2006-03-24
期刊: SCIENCE
影响因子: 56.9
作者:
Overpeck, JT;Otto-Bliesner, BL;Kiehl, JT
通讯作者: Kiehl, JT
DOI: 10.1029/98gl01411
发表时间: 1998-06-01
影响因子: 5.2
作者:
Souchez, R;Bouzette, A;Jouzel, J
通讯作者: Jouzel, J
全新世和更新世沉积物中多样的动植物遗传记录
DOI: 10.1126/science.1084114
发表时间: 2003-05-02
期刊: SCIENCE
影响因子: 56.9
作者:
Willerslev, E;Hansen, AJ;Cooper, A
通讯作者: Cooper, A
DOI: 10.1126/science.1120808
发表时间: 2006-03-24
期刊: SCIENCE
影响因子: 56.9
作者:
Otto-Bliesner, BL;Marsha, SJ;Hu, AX
通讯作者: Hu, AX
DOI: 10.1038/364218a0
发表时间: 1993-07-15
期刊: NATURE
影响因子: 64.8
作者:
DANSGAARD, W;JOHNSEN, SJ;BOND, G
通讯作者: BOND, G