Angiosperm phylogeny and timetree inferred by extensive gene and taxon sampling
作者单位：College of Life SciencesNanjing Normal University Peking-Tsinghua Center for Life SciencesAcademy for Advanced Interdisciplinary StudiesPeking University State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and DevelopmentMinistry of Education Key Laboratory of Biodiversity Sciences and Ecological EngineeringSchool of Life SciencesFudan University Department of BiologyThe Pennsylvania State University
会议名称：《中国植物学会第十六次全国会员代表大会暨85周年学术年会》
会议日期：2018年
学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学]
关 键 词：angiosperm phylogenomics phylogenetic signals divergence times fossil record
摘 要：Angiosperms（flowering plants） are the most diverse and species-rich groups of plants,yet the relationships of the five divergent groups of the Mesangiospermae（～99.95% of extant angiosperms） and its evolutionary timeline have been a subject of long *** we infer the angiosperm phylogeny and divergence times of major lineages by analyzing 3577 nuclear genes in 142 species,covering all or most orders of eudicots,monocots,magnoliids,Chloranthaceae and *** phylogeny corroborates some earlier inferences and provides novel insights,in particular within *** find sisterhood of Chloranthaceae and a clade containing eudicots and Ceratophyllaceae,and these three lineages form sister group to magnoliids + *** timescale of angiosperm evolution reveal that the crown-angiosperms originated approximately 222.92 million years ago（Ma） ±25 million years,and Mesangiospermae diversified into five groups in a short time span（～9 Ma） at the Late *** 80% of angiosperm orders appear in the Cretaceous accompanying the long-lasting humid temperate environment,which provided new external conditions for further expansive diversification within Mesangiospermae.