The Ex-situ Conservation for Four Chinese Magnolia species
The family Magnoliaceae is one of the most primitive groups of angiosperms (flowering plants)，which comprises 2 genera and over 300 species mainly distributed throughout southeastern Asia and tropical America. Approximately 2 genera and more than 160 species of Magnoliaceae are found in China, which include 53% species of Magnoliaceae in the world. Southwest and South China including Yunnan, Guangxi, Guangdong, Hainan, Guizhou and their neighbor areas are the center of modern distribution and diversity conservation of Magnoliaceae in the world. China is the country with the richest species of Magnoliaceae all over the world, so it deserves the reputation of “Magnolia Kingdom”. A great deal of ancient anther and magnolioid fossil records suggest that magnolias possibly originated from China.
However, due to over-utilization of magnoliaceous plant resource, degradation of natural habitats and decline of natural reproductive ability, many magnoliaceous plants have become endangered and extinct in the wild. More than 30 species of Magnoliaceae were listed in China’s Red Data Book of Endangered Plants as rare and endangered species, 45 species included in the Red List of Magnoliaceae . Magnoliaceae is one of the families which contain the most rare and endangered species in angiosperm. Therefore, in order to conserve the biodiversity, to renew the degraded tropical and subtropical forest-ecosystem and to protect the environment which mankind relies on, it is necessary to conserve the germplasm of magnoliaceous plants, and rescue some rare and endangered species.
Partner: South China Botanical garden, CAS