期刊
SCIENCE
卷 324, 期 5927, 页码 626-631出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1165069
关键词
-
资金
- NSF [EAR 0722702, EAR 0634136, EAR 0548847, EAR-0541744]
- David and Lucile Packard Foundation
- United Negro College Fund Merck Postdoctoral Science Research Fellowship
- Taplin Funds for Discovery (Harvard Medical School)
- NASA Expermental Project to Simulate Competitive Research [NCC5-579]
- Damon Runyon Cancer Research Foundation
- NIH [DK 55001, DK 62987, AA 13913, DK 61866, CA 125550]
- Department of Medicine for the Division of Matrix Biology at the Beth Israel Deaconess Medical Center
Molecular preservation in non-avian dinosaurs is controversial. We present multiple lines of evidence that endogenous proteinaceous material is preserved in bone fragments and soft tissues from an 80-million-year-old Campanian hadrosaur, Brachylophosaurus canadensis [Museum of the Rockies (MOR) 2598]. Microstructural and immunological data are consistent with preservation of multiple bone matrix and vessel proteins, and phylogenetic analyses of Brachylophosaurus collagen sequenced by mass spectrometry robustly support the bird-dinosaur clade, consistent with an endogenous source for these collagen peptides. These data complement earlier results from Tyrannosaurus rex (MOR 1125) and confirm that molecular preservation in Cretaceous dinosaurs is not a unique event.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据