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DOI10.1016/j.ympev.2006.04.005
Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications
Nadler, Steven A.; De Ley, Paul; Mundo-Ocampo, Manuel; Smythe, Ashleigh B.; Stock, S. Patricia; Bumbarger, Dan; Adams, Byron J.; De Ley, Irma Tandingan; Holovachov, Oleksandr; Baldwin, James G.
通讯作者Nadler, Steven A.
来源期刊MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN1055-7903
出版年2006
卷号40期号:3页码:696-711
英文摘要

Nematodes of the suborder Cephalobina include an ecologically and morphologically diverse array of species that range from soil-dwelling microbivores to parasites of vertebrates and invertebrates. Despite a long history of study, certain of these microbivores (Cephaloboidea) present some of the most intractable problems in nematode systematics; the lack of an evolutionary framework for these taxa has prevented the identification of natural groups and inhibited understanding of soil biodiversity and nematode ecology. Phylogenetic analyses of ribosomal (LSU) sequence data from 53 taxa revealed strong support for monophyly of taxa representing the Cephaloboidea, but do not support the monophyly of most genera within this superfamily. Historically these genera have primarily been recognized based on variation in labial morphology, but molecular phylogenies show the same general labial (probolae) morphotype often results from recurrent similarity, a result consistent with the phenotypic plasticity of probolae previously observed for some species in ecological time. Phylogenetic analyses of LSU rDNA also recovered strong support for some other groups of cephalobs, including taxa representing most (but not all) Panagrolaimoidea. In addition to revealing homoplasy of probolae, molecular trees also imply other unexpected patterns of character evolution or polarity, including recurrent similarity of offset spermatheca presence, and representation of complex probolae as the ancestral condition within Cephaloboidea. For Cephalobidae, molecular trees do not support traditional genera as natural groups, but it remains untested if deconstructing probolae morphotypes or other structural features into finer component characters may reveal homologies that help delimit evolutionary lineages. (c) 2006 Elsevier Inc. All rights reserved.


英文关键词Nematoda Cephalobina molecular systematics ribosomal DNA homoplasy probolae
类型Article
语种英语
国家USA ; Ukraine
收录类别SCI-E
WOS记录号WOS:000240244600005
WOS关键词GENUS PSEUDACROBELES STEINER ; N. SP NEMATODA ; TAXONOMIC CHARACTERS ; BUCCAL CAPSULE ; ANTARCTIC SOIL ; MOJAVE DESERT ; RHABDITIDA ; PANAGROLAIMOIDEA ; NOTHACROBELES ; VARIABILITY
WOS类目Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS研究方向Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
来源机构University of Arizona ; University of California, Davis
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/152534
作者单位(1)Univ Calif Davis, Dept Nematol, Davis, CA 95616 USA;(2)Univ Calif Davis, Dept Nematol, Davis, CA 92521 USA;(3)Univ Arizona, Dept Entomol, Tucson, AZ 85721 USA;(4)Brigham Young Univ, Dept Mol Biol & Microbiol, Provo, UT 84602 USA;(5)Ivan Franko Natl Univ Lviv, Dept Zool, Fac Biol, UA-79005 Lvov, Ukraine
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Nadler, Steven A.,De Ley, Paul,Mundo-Ocampo, Manuel,et al. Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications[J]. University of Arizona, University of California, Davis,2006,40(3):696-711.
APA Nadler, Steven A..,De Ley, Paul.,Mundo-Ocampo, Manuel.,Smythe, Ashleigh B..,Stock, S. Patricia.,...&Baldwin, James G..(2006).Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications.MOLECULAR PHYLOGENETICS AND EVOLUTION,40(3),696-711.
MLA Nadler, Steven A.,et al."Phylogeny of Cephalobina (Nematoda): Molecular evidence for recurrent evolution of probolae and incongruence with traditional classifications".MOLECULAR PHYLOGENETICS AND EVOLUTION 40.3(2006):696-711.
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