Systematics of Fagaceae: Phylogenetic tests of reproductive trait evolution

	Systematics of Fagaceae: Phylogenetic tests of reproductive trait evolution
	Manos, PS ; Zhou, ZK; Cannon, CH
	2001-11-01
发表期刊	INTERNATIONAL JOURNAL OF PLANT SCIENCES
ISSN	1058-5893
卷号	162 期号:6 页码:1361-1379
摘要	The family Fagaceae includes nine currently recognized genera and ca. 1000 species, making it one of the largest and most economically important groups within the order Fagales. In addition to wide variation in cupule and fruit morphology, polymorphism in pollination syndrome (wind vs. generalistic insect) also contributes to the uniqueness of the family. Phylogenetic relationships were examined using 179 accessions spanning the taxonomic breadth of the family, emphasizing tropical, subtropical, and relictual taxa. Nuclear ribosomal DNA sequences encoding the 5.8S rRNA gene and two flanking internal transcribed spacers (ITS) were used to evaluate phylogenetic hypotheses based on previous morphological cladistic analysis and intuitive schemes. Parsimony analyses rooted with Fagus supported two clades within the family, Trigonobalanus sensu lato and a large clade comprising Quercus and the castaneoid genera (Castanea + Castanopsis, Chrysolepis, Lithocarpus). Three DNA sequence data sets, 179-taxon ITS, 60-taxon ITS, and a 14-taxon combined nuclear and chloroplast (matK), were used to test a priori hypotheses of reproductive character state evolution. We used Templeton's (1983) test to assess alternative scenarios of single and multiple origins of derived and seemingly irreversible traits such as wind pollination, hypogeal cotyledons, and flower cupules. On the basis of previous exemplar-based and current in-depth analyses of Fagaceae, we suggest that wind pollination evolved at least three times and hypogeal cotyledons once. Although we could not reject the hypothesis that the acorn fruit type of Quercus is derived from a dichasium cupule, combined analysis provided some evidence for a relationship of Quercus to Lithocarpus and Chrysolepis, taxa with dichasially arranged pistillate flowers, where each flower is surrounded by cupular tissue. This indicates that a more broadly defined flower cupule, in which individual pistillate flowers seated within a separate cupule, may have a single origin.
关键词	Fagaceae Its Lithocarpus Matk Phylogeny Pollination Syndrome Quercus Systematics Wind Pollination
学科领域	Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000171501900019
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2986
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
作者单位	1.Duke Univ, Dept Biol, Durham, NC 27708 USA 2.Acad Sinica, Kunming Inst Bot, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Manos, PS,Zhou, ZK,Cannon, CH. Systematics of Fagaceae: Phylogenetic tests of reproductive trait evolution[J]. INTERNATIONAL JOURNAL OF PLANT SCIENCES,2001,162(6):1361-1379.
APA	Manos, PS,Zhou, ZK,&Cannon, CH.(2001).Systematics of Fagaceae: Phylogenetic tests of reproductive trait evolution.INTERNATIONAL JOURNAL OF PLANT SCIENCES,162(6),1361-1379.
MLA	Manos, PS,et al."Systematics of Fagaceae: Phylogenetic tests of reproductive trait evolution".INTERNATIONAL JOURNAL OF PLANT SCIENCES 162.6(2001):1361-1379.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
201112200033.pdf（413KB）			开放获取	--	浏览下载