last update : December 1, 2015
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Asteraceae, which consists of more than 1,600 genera and 23,000 species, is one of the largest families in angiosperm and distributed worldwide except Antarctica. Among its members, the genus Chrysanthemum has evolved in the Eurasian continent and its surrounding regions and contains autoploid species from diploid to decaploid endemic to Japan. The cultivated chrysanthemum is unsuitable for genetic analysis due to its autohexapolidy. The diploid Chrysanthemum species C. seticuspe is anticipated to be a model species to elucidate various properties in cultivated chrysanthemum at molecular level because its flowering and inflorescence morphology properties resemble those of the cultivated chrysanthemum and its transformation method has been established. NBRP Chrysanthemum resources include other species with various morphology and characteristics. These bioresources are maintained in the field, pots, or in vitro to be provided to researchers and breeders.


A variety of inflorescences belong to Chrysanthemum sensu lato