Phylogenetic position of Kontumia (Polypodiaceae) inferred from four chloroplast DNA regions
Kim, Changkyun; Zha, Hong-Guang; Deng, Tao; Sun, Hang; Wu, Su-Gong
2013-03-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN1674-4918
卷号51期号:2页码:154-163
摘要The phylogenetic position of the monotypic genus Kontumia (Polypodiaceae) is contentious. It has been suggested that Kontumia is related to Gymnogrammitis dareiformis (Drynarioideae) based on spore ornamentation and blade dissection, or it has been assigned as a member of microsoroid ferns (Microsoroideae) based on the shape of rhizome scales. In the present study, we determined the phylogenetic position of K. heterophylla using four chloroplast DNA regions (rbcL, atpB, rps4 + rps4-trnS intergenic spacer [IGS], and trnL-F IGS). A parsimony consensus tree indicated that K. heterophylla is not related to G. dareiformis, but is nested within the Leptochilus lineage of Microsoroideae. This relationship is also supported by sharing of clathrate scales on the rhizome, which is not found in G. dareiformis. Although marked morphological disparities are found between K. heterophylla and the Leptochilus lineage in terms of leaf dissection, fertile-sterile leaf differentiation, and sori arrangement, our results indicate that these characters have evolved independently several times in Polypodiaceae.
关键词Fern Kontumia Leptochilus Lineage Microsoroideae Molecular Phylogeny Polypodiaceae
资助信息Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, CAS [Y0205111L1]; West Light Foundation of the CAS; Hundred Talents Program of the Chinese Academy of Sciences [2011312D11022]; National Natural Science Foundation of China [31061160184]; National Geographic Society of the United States [6300-98, 7312-13]
学科领域Plant Sciences
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000325127900004
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/17297
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Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Peoples R China
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Kim, Changkyun,Zha, Hong-Guang,Deng, Tao,et al. Phylogenetic position of Kontumia (Polypodiaceae) inferred from four chloroplast DNA regions[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2013,51(2):154-163.
APA Kim, Changkyun,Zha, Hong-Guang,Deng, Tao,Sun, Hang,&Wu, Su-Gong.(2013).Phylogenetic position of Kontumia (Polypodiaceae) inferred from four chloroplast DNA regions.JOURNAL OF SYSTEMATICS AND EVOLUTION,51(2),154-163.
MLA Kim, Changkyun,et al."Phylogenetic position of Kontumia (Polypodiaceae) inferred from four chloroplast DNA regions".JOURNAL OF SYSTEMATICS AND EVOLUTION 51.2(2013):154-163.
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