Chloroplast phylogenomics resolves key relationships in ferns

doi:10.1111/jse.12180

	Chloroplast phylogenomics resolves key relationships in ferns
	Lu,Jin-Mei; Zhang,Ning; Du,Xin-Yu; Wen,Jun; Li,De-Zhu
	2015-09-01
发表期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
卷号	53 期号:5 页码:448-457
摘要	Studies on chloroplast genomes of ferns and lycophytes are relatively few in comparison with those on seed plants. Although a basic phylogenetic framework of extant ferns is available, relationships among a few key nodes remain unresolved or poorly supported. The primary objective of this study is to explore the phylogenetic utility of large chloroplast gene data in resolving difficult deep nodes in ferns. We sequenced the chloroplast genomes from Cyrtomium devexiscapulae (Koidz.) Ching (eupolypod I) and Woodwardia unigemmata (Makino) Nakai (eupolypod II), and constructed the phylogeny of ferns based on both 48 genes and 64 genes. The trees based on 48 genes and 64 genes are identical in topology, differing only in support values for four nodes, three of which showed higher support values for the 48-gene dataset. Equisetum L. was resolved as the sister to the Psilotales-Ophioglossales clade, and Equisetales-Psilotales-Ophioglossales clade was sister to the clade of the leptosporangiate and marattioid ferns. The sister relationship between the tree fern clade and polypods was supported by 82% and 100% bootstrap values in the 64-gene and 48-gene trees, respectively. Within polypod ferns, Pteridaceae was sister to the clade of Dennstaedtiaceae and eupolypods with a high support value, and the relationship of Dennstaedtiaceae-eupolypods was strongly supported. With recent parallel advances in the phylogenetics of ferns using nuclear data, chloroplast phylogenomics shows great potential in providing a framework for testing the impact of reticulate evolution in the early evolution of ferns.
关键词	Chloroplast Genome Chloroplast Phylogenomics Ferns Phylogenetics Polypods
DOI	10.1111/jse.12180
收录类别	SCI
语种	英语
WOS记录号	WOS:000363874500008
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/25231
专题	中国西南野生生物种质资源库
推荐引用方式 GB/T 7714	Lu,Jin-Mei,Zhang,Ning,Du,Xin-Yu,et al. Chloroplast phylogenomics resolves key relationships in ferns[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2015,53(5):448-457.
APA	Lu,Jin-Mei,Zhang,Ning,Du,Xin-Yu,Wen,Jun,&Li,De-Zhu.(2015).Chloroplast phylogenomics resolves key relationships in ferns.JOURNAL OF SYSTEMATICS AND EVOLUTION,53(5),448-457.
MLA	Lu,Jin-Mei,et al."Chloroplast phylogenomics resolves key relationships in ferns".JOURNAL OF SYSTEMATICS AND EVOLUTION 53.5(2015):448-457.

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