Phylogeny and evolutionary history of Pinaceae updated by transcriptomic analysis
Ran, Jin-Hua1; Shen, Ting-Ting1,3; Wu, Hui1; Gong, Xun2; Wang, Xiao-Quan1,3
2018-12-01
发表期刊MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN1055-7903
卷号129页码:106-116
摘要Pinaceae comprises 11 genera, and represents the largest family of conifers with an extensive wild distribution in the Northern Hemisphere. Intergeneric relationships of Pinaceae have been investigated using many morphological characters and molecular markers, but phylogenetic positions of four genera, including Cathaya, Cedrus, Nothotsuga and Pseudolarix, remain controversial or have not been completely resolved. To completely resolve the intergeneric relationships of Pinaceae, we conducted a comparative transcriptomic study of 14 species representing all Pinaceae genera. Multiple data sets, containing up to 6,369,681 sites across 4676 loci, were analyzed using concatenation and coalescent methods. Our study generated a robust topology, which divides Pinaceae into two clades, one (pinoid) including Cathaya, Laric, Picea, Pinus, and Pseudotsuga, and the other (abietoid) including Abies, Cedrus, Keteleeria, Nothotsuga, Pseudolarix, and Tsuga. Cathaya and Pinus form a Glade sister to Picea; Cedrus is sister to the remaining abietoid genera, and the two genera Nothotsuga and Tsuga form a Glade sister to Pseudolarix. The discordant positions of Cathaya, Cedrus and Pseudolarix in different gene trees could be explained by ancient radiation and/or molecular homoplastic evolution. The hybrid origin hypothesis of Nothotsuga is not supported. Based on molecular dating, extant Pinaceae genera diverged since about 206 Mya, earlier than the break-up of Pangea, and the divergence among the pinoid genera occurred earlier than the split among the abietoid genera. Moreover, our study indicates that two radiation events occurred in the evolution of Pinaceae genera, and some important morphological characters evolved multiple times based on ancestral state reconstruction.
关键词Phylogenomics Divergence times Convergence Cathaya Cedrus Pinaceae
资助信息Key Research Program of Frontier Sciences, Chinese Academy of Sciences; National Natural Science Foundation of China; National Key R&D Program of China; Youth Innovation Promotion Association, Chinese Academy of Sciences
语种英语
资助项目Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-SMC027] ; National Natural Science Foundation of China[31330008] ; National Natural Science Foundation of China[31370250] ; National Natural Science Foundation of China[31770238] ; National Key R&D Program of China[2017YFA0605100] ; Youth Innovation Promotion Association, Chinese Academy of Sciences[2012070]
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/62786
专题中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者Ran, Jin-Hua; Wang, Xiao-Quan
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, 20 Nanxincun, Beijing 100093, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Ran, Jin-Hua,Shen, Ting-Ting,Wu, Hui,et al. Phylogeny and evolutionary history of Pinaceae updated by transcriptomic analysis[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2018,129:106-116.
APA Ran, Jin-Hua,Shen, Ting-Ting,Wu, Hui,Gong, Xun,&Wang, Xiao-Quan.(2018).Phylogeny and evolutionary history of Pinaceae updated by transcriptomic analysis.MOLECULAR PHYLOGENETICS AND EVOLUTION,129,106-116.
MLA Ran, Jin-Hua,et al."Phylogeny and evolutionary history of Pinaceae updated by transcriptomic analysis".MOLECULAR PHYLOGENETICS AND EVOLUTION 129(2018):106-116.
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