译 名：
Geographical Distribution and Taxonomy of Keteleeria Carr.
作 者：
YUAN Yanchao;XIAO Wenfa;LIU Yifu;WANG Ya;NIE Wen;TAN Cancan;LIU Jianfeng;CHANG Ermei;JIA Zirui;Ecology and Nature Conservation Institution, Chinese Academy of Forestry;Research Institute of Forestry, Chinese Academy of Forestry;State Key Laboratory of Forest Tree Genetics and Breeding;
关键词：
Keteleeria Carr.;;geographical distribution;;taxonomy
摘 要：
Keteleeria Carr.is a primitive group that remains after the Quaternary ice age in the pine family, with 11 species and 2 varieties in the world.China has 9 species and 2 varieties, which is the center of genetic diversity; It is mainly distributed in the south of Qinling Mountains in China, south to Hainan and Taiwan, and some species are distributed to Vietnam and Laos.From the Cretaceous to the Miocene, it was widely spread in Eurasia and western North America, and there was still a large number of distribution in northeast China before the Great Ice Age.Predict potential expansion trends in the genus in the future.Although 13 taxa have been identified from the morphological point of view, the taxonomic status of each group is not very clear.At this stage, systematic evolutionary research has been carried out in combination with cytology, isoenzymes and DNA molecular technology, and the origin and evolution of Cedar have been initially understood and recognized.The geographical distribution and phylogenetic evolution of the genus provide a theoretical basis for the conservation and utilization and genetic improvement of the genus, and a high-resolution phylogenetic tree of the whole distribution area of the genus can be constructed in the future to unify the taxonomic status and phylogenetic relationship of various groups.
