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Research on Botanical Remedies Like Coneflower To Treat Human Ailments
Only a few Echinacea species are currently cultivated as botanical remedies, and plant breeders would like to know whether other types also possess commercially useful traits.
Agricultural Research Service (ARS) horticulturist Mark Widrlechner, who works at the ARS North Central Regional Plant Introduction Station (NCRPIS) in Ames, Iowa, is partnering in research to find out how many distinct Echinacea species exist.
Previous studies have put the number between four and nine species, depending on classification criteria.
Working with Iowa State University scientists, Widrlechner selected 40 diverse Echinacea populations for DNA analysis from the many populations conserved at the NCRPIS.
Most of these Echinacea populations were found to have a remarkable range of genetic diversity.
DNA analysis suggested that when much of North America was covered with glaciers, Echinacea found southern refuges on both sides of the Mississippi River.
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