Pteridryaceae: A new fern family of Polypodiineae (Polypodiales) including taxonomic treatments
Zhou, Xin-Mao1; Zhang, Liang2; Ngan Thi Lu1,3,4; Gao, Xin-Fen1; Zhang, Li-Bing1,5
2018-03-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
卷号56期号:2页码:148-173
摘要

We undertook phylogenetic analyses to resolve the relationships of Pteridrys and related taxa based on six plastid markers (atpA, atpB, matK & rps16-matK, rbcL, rps4 & rps4-trnS, and trnL & trnL-F) and nuclear pgiC. We included 195 accessions representing approximately 147 species in 38 genera, and seven of the nine families in Polypodiineae (eupolypods I). Tectariaceae s.l. (i.e., Arthropteris, Draconopteris, Hypoderris, Malaifilix, Pteridrys, Tectaria, and Triplophyllum in addition to Polydictyum) is recovered as monophyletic (97% maximum likelihood bootstrap value), but with low (<50%) maximum parsimony jackknife value. The family Tectariaceae s.l. is therefore the only family in ferns without a corresponding non-parametric-based strong support in spite of our data totaling 9616 aligned base pairs. Tectariaceae s.l. can not be unambiguously recognized by any of the 13 morphological characters analyzed. However, if the clade composed of Draconopteris, Malaifilix, Polydictyum, and Pteridrys (DMPP) is recognized as a distinct family, at least four morphological characters enable the distinction of the DMPP clade from its sister clade. Considering the uncertainty in the monophyly, the diagnosability, and the deep divergence, we propose to establish a new family, Pteridryaceae, to accommodate the DMPP clade. Species of Pteridryaceae share mostly the following characteristics: erect to suberect rhizomes, reduced basal pinnae, anastomosing or free venation, absence of catenate hairs at the leaf surface, and perine ornamentation lacking spines or spinules. Identification keys are provided for the four genera and 31 species of the DMPP clade (or Pteridryaceae). Reflecting the presented results, the recognition of Arthropteridaceae is the preferred taxonomic status of the Arthropteris clade.

关键词Arthropteris Eupolypods i Fern Phylogeny Polypodiaceae Pteridryaceae Pteridrys Tectariaceae
语种英语
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/60509
专题植物化学与西部植物资源持续利用国家重点实验室
作者单位1.Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, POB 416, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Vietnam Acad Sci & Technol, Vietnam Natl Museum Nat, Dept Biol, 18th Hoang Quoc Viet Rd, Hanoi, Vietnam
5.Missouri Bot Garden, POB 299, St Louis, MO 63166 USA
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Zhou, Xin-Mao,Zhang, Liang,Ngan Thi Lu,et al. Pteridryaceae: A new fern family of Polypodiineae (Polypodiales) including taxonomic treatments[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2018,56(2):148-173.
APA Zhou, Xin-Mao,Zhang, Liang,Ngan Thi Lu,Gao, Xin-Fen,&Zhang, Li-Bing.(2018).Pteridryaceae: A new fern family of Polypodiineae (Polypodiales) including taxonomic treatments.JOURNAL OF SYSTEMATICS AND EVOLUTION,56(2),148-173.
MLA Zhou, Xin-Mao,et al."Pteridryaceae: A new fern family of Polypodiineae (Polypodiales) including taxonomic treatments".JOURNAL OF SYSTEMATICS AND EVOLUTION 56.2(2018):148-173.
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