How Old Are Sunflowers? a Molecular Clock Analysis of Key Divergences in the Origin and Diversification of Helianthus (asteraceae)

Abstract

Manuscript electronical Premise of research. For many questions in evolutionary ecology, it is quite valuable to have an estimate of the span of geologic time over which a group of species has arisen and diversified. This study uses a molecular clock approach to generate a first estimate of key divergences in the evolutionary history of the genus Helianthus… (More)

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