期刊
JOURNAL OF SYSTEMATICS AND EVOLUTION
卷 59, 期 1, 页码 73-82出版社
WILEY
DOI: 10.1111/jse.12567
关键词
Aquifoliales; biogeography; cosmopolitan distribution; dioecy; long distance dispersal
资金
- CAS Light of West China Program [Y9XB071B01]
- National Natural Science Foundation of China [41901067]
- CAS 135 program [2017XTBG-T03]
- 1000 Talents Program [WQ20110491035]
The study constructed a phylogeny of the holly genus based on nuclear genes, revealing its origins in subtropical Asia and colonization of various continents over time. The findings highlight the genus' adaptation to mesic climates and broader distribution before late Miocene global cooling, providing a framework for future research in comparative ecology and evolution.
The holly genus, Ilex L., in the monogeneric Aquifoliaceae, is the largest woody dioecious genus (>664 spp.), with a near-cosmopolitan distribution 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 multiple times. 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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据