A 100-million-year old piece of amber has been discovered which reveals the oldest evidence of sexual reproduction in a flowering plant -- a cluster of 18 tiny flowers from the Cretaceous Period -- ...
A collaborative research group has succeeded in identifying an important transcription factor, GCAM1, which allows liverwort plants to asexually reproduce through creating clonal progenies (vegetative ...
American Journal of Botany, Vol. 77, No. 12 (Dec., 1990), pp. 1582-1598 (17 pages) Since the initial discovery of double fertilization in angiosperms in 1898, a number of reports of double ...
Scientists have discovered a 100-million-year-old chunk of amber that captures what they say is the oldest evidence of sexual reproduction in a flowering plant. The now-extinct but well-preserved ...
Background and Aims Polyploidy is arguably the single most important genetic mechanism in plant speciation and diversification. It has been repeatedly suggested that polyploids show higher vegetative ...
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