Article
Reconstructing the origin of Helianthus deserticola: survival and selection on the desert floor.
The American naturalist - 1 Aug 2004
Gross Briana L, Kane Nolan C, Lexer Christian, Ludwig Fulco, Rosenthal David M, Donovan Lisa A, Rieseberg Loren H
Abstract excerpt
The diploid hybrid species Helianthus deserticola inhabits the desert floor, an extreme environment relative to its parental species Helianthus annuus and Helianthus petiolaris. Adaptation to the desert floor may have occurred via selection acting on transgressive, or extreme, traits in early hybrids between the parental species. We explored this possibility through a field experiment in the hybrid species'...
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