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Archaefructus -: Angiosperm precursor or specialized early angiosperm?

delete2003-08-01
delete150
PRE
AI
E
Else Marie Friis *
J
James A. Doyle
P
Peter K. Endress
Q
Qin Leng
DOI：10.1016/S1360-1385(03)00161-4delete
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Abstract

Abstract

En 中文
With molecular analyses indicating that angiosperms are not closely related to any other extant seed plant group, information from fossils might provide the only basis for reconstructing their origin. Therefore the description of a new Early Cretaceous angiosperm, Archaefructus, placed as the sister of all extant angiosperms, has created much debate and optimism. However, we question both the interpretation and the analysis of Archaefructus, concluding that it might be a crown-group angiosperm specialized for aquatic habit rather than a more primitive relative.
Keywords:
BASAL ANGIOSPERMS
PHYLOGENETIC ANALYSIS
FLORAL EVOLUTION
CRETACEOUS AGE
ORIGIN
CHINA
PORTUGAL
POLLEN
DIVERSIFICATION
YIXIAN
AI Summary

AI Summary

Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Trends in Plant Science cover
Trends in Plant Science
IF:
20.8
Papers:
3.8K
Citations:
3.2W

Organization

No organization information available