Phylogeny and biogeography of the hollies(llex L.,Aquifoliaceae)  

作　　者：Xin Yao Yu Song Jun-Bo Yang Yun-Hong Tan Richard T.Corlett 

机构地区：[1]Center for Integrative Conservation,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla,Yunnan 666303,China [2]Center of Conservation Biology,Core Botanical Gardens,Chinese Academy of Sciences,Mengla,Yunnan 666303,China [3]Germplasm Bank of Wild Species,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China [4]Southeast Asia Biodiversity Research Institute,Chinese Academy of Sciences,Nay Pyi Taw 05282,Myanmar

出　　处：《Journal of Systematics and Evolution》2021年第1期73-82,共10页植物分类学报（英文版）

基　　金：This work was supported by grants from the CAS"Light of West China"Program(Y9XB071B01)to X.Y.,the National Natural Science Foundation of China(41901067)to X.Y.,the CAS 135 program(2017XTBG-T03)to X.Y.,and the 1000 Talents Program(WQ20110491035)to R.T.C.We acknowledge the Germplasm Bank of Wild Species,Kunming Institute of Botany,Chinese Academy of Sciences,for DNA extraction and sequencing,and we wish to thank Tao Su,Yan Wang,Tristan Charles-Dominique,Uriel Gelin,Wenbin Yu,Mohammed Armani,and Zhiqiang Lu for useful discussions.We also thank Yaowu Xing for advice on fossil selection and phylogeny calibration.We are grateful to Xuejun Ge,Bing'e Xue,Yansong Peng,Shudong Zhang,Bing Liu,Jian Huang,Lei Jiang,Jianwu Li,Hongbo Ding,Sijin Zeng,and Haitao Li for providing samples.We also acknowledge the Herbarium of Institute of Botany of Chinese Academy of Sciences(PE),the Herbarium of Kunming Institute of Botany of Chinese Academy of Sciences(KUN),the South China Botanical Garden Herbarium of Chinese Academy of Sciences(IBSC),and the Herbarium of Xishuangbanna Tropical Botanical Garden of Chinese Academy of Sciences(HITBC)for providing specimen records.

摘　　要：The holly genus,Ilex L,in the monogeneric AqiHfoliaceae,is the largest woody dioecious genus(>664 spp.),with a near-cosmopolitan distribut:ion in mesic environments.We constructed a phylogeny based on two nuclear genes,representing 177 species spread across the geographical range,and dated using macrofossil records.The five main clades had a common ancestor in the early Eocene,much earlier than previously suggested.Ilex originated in subtropical Asia and extant clades colonized South America by 30 Ma,North America by 23 Ma,Australia by 8 Ma,Europe by 6 Ma,and Africa by 4 Ma.South and North America were colonized mulitpieitmes.Ilex also reached Hawaii(10 Ma)and other oceanic islands.Macrofossil and pollen records show the genus has tracked mesic climates through time and space,and had a wider distribution before late Miocene global cooling.Our phylogeny provides a framework for studies in comparative ecology and evolution.

关 键 词：Aquifoliales BIOGEOGRAPHY cosmopolitan distribution DIOECY long distance dispersal 

分 类 号：Q945[生物学—植物学] Q947