Didymochlaenaceae: A new fern family of eupolypods I (Polypodiales)

	Didymochlaenaceae: A new fern family of eupolypods I (Polypodiales)
	Zhang, Li-Bing; Zhang, Liang
刊名	TAXON
	2015
卷号	64 期号:1 页码:27-38
关键词	WORLD DRYOPTERIS DRYOPTERIDACEAE CHLOROPLAST DNA MOLECULAR PHYLOGENY RETICULATE EVOLUTION MAXIMUM-LIKELIHOOD MODEL SELECTION RBCL SEQUENCES PLASTID GENES TRNL-F CLASSIFICATION
通讯作者	Zhang, LB (reprint author), Missouri Bot Garden, POB 299, St Louis, MO 63166 USA.
产权排序	2
合作状况	国际
英文摘要	The pantropical monospecific fern genus Didymochlaena had long been placed in the family Dryopteridaceae before the advent of molecular phylogenetics. Recent molecular studies confirmed that it is a member of eupolypods I, but its familial placement has been controversial. It has been resolved using molecular data either as a member of Hypodematiaceae or as sister to the rest of eupolypods I. In the present study we performed phylogenetic analyses (MP, ML, BI) based on DNA data from five plastid loci (atpA, rbcL, rps4-trnS, trnL, trnL-F) of 88 accessions representing 79 species in 20 genera of all 9 families currently recognized in eupolypods I as ingroup and 5 species from 3 families of eupolypods II as outgroups. Our analyses resolved Didymochlaena as sister to the rest of eupolypods I with strong support. The results of an analysis of nuclear 18S data available from GenBank did not contradict those based on plastid data. This resolution is consistent with its sorus/indusium shape and a previous phylogenetic analysis based on both plastid and nuclear loci. Sorus shape, spore characters, and chromosome number previously used to place the genus in Dryopteridaceae are in fact not synapomorphies of the family. Our study clearly showed that the family Didymochlaenaceae should be recognized and we hereby validate this name previously proposed by Ching.
学科主题	Plant Sciences; Evolutionary Biology
类目[WOS]	Plant Sciences ; Evolutionary Biology
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/27538]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Zhang, Li-Bing,Zhang, Liang. Didymochlaenaceae: A new fern family of eupolypods I (Polypodiales)[J]. TAXON,2015,64(1):27-38.
APA	Zhang, Li-Bing,&Zhang, Liang.(2015).Didymochlaenaceae: A new fern family of eupolypods I (Polypodiales).TAXON,64(1),27-38.
MLA	Zhang, Li-Bing,et al."Didymochlaenaceae: A new fern family of eupolypods I (Polypodiales)".TAXON 64.1(2015):27-38.