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| 1 | Cryptic diversity and significant cophylogenetic signal detected by DNA barcoding the rust fungi (Pucciniaceae) of Cyperaceae-Juncaceae显示文摘Plants play important roles as habitat and food for a tremendous diversity of specialist animals and fungi.The disappearance of any plant species can lead to extinction cascades of its associated biota.In consequence,documenting the diversity and specificity of plant-associated organisms is of high practical relevance in biodiversity conservation.Here,we present the first large-scale molecular investigation into the diversity,host specificity,and cophylogenetic congruence of an especially rich plant-fungal association,the rust fungi(Pucciniaceae)of Cyperaceae and Juncaceae.Using the largest rust fungi DNA barcoding dataset published to date(252 sequences,82 taxa),we reject the presence of a global ITS2-28S barcode gap,but find a local gap in Cyperaceae-Juncaceae rusts,and suggest the existence of many cryptic species in North America,with some broadly circumscribed species possibly corresponding to>10 cryptic species.We test previous hypotheses of correlations between the phylogenies of rust fungi and their Cyperaceae-Juncaceae hosts using a combination of global-fit and event-based cophylogenetic methods.A significant cophylogenetic signal is detected between rusts and their hosts,but the small number of cospeciations argues for preferential host jumps as the driving process behind these correlations.In addition,temporal congruence between the origin of major Carex clades and their rusts suggests that host diversification may have promoted parasite diversification.Finally,we discuss the relevance of rust infection patterns to the systematics of Cyperaceae,highlight some taxonomic problems uncovered by the analyses,and call attention to the promise of DNA barcoding for bridging knowledge gaps in poorly studied plant-associated microorganisms. | Étienne Léveillé-Bourret Quinn Eggertson Sarah Hambleton Julian R.Starr | 2021 | Journal of Systematics and Evolution2021，59，4： | 4 |
| 2 | A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles显示文摘Phylogenetic studies of Carex L.(Cyperaceae)have consistently demonstrated that most subgenera and sections are para-or polyphyletic.Yet,taxonomists continue to use subgenera and sections in Carex classification.Why?The Global Carex Group(GCG)here takes the position that the historical and continued use of subgenera and sections serves to(i)organize our understanding of lineages in Carex,(ii)create an identification mechanism to break the~2000 species of Carex into manageable groups and stimulate its study,and(iii)provide a framework to recognize morphologically diagnosable lineages within Carex.Unfortunately,the current understanding of phylogenetic relationships in Carex is not yet sufficient for a global reclassification of the genus within a Linnean infrageneric(sectional)framework.Rather than leaving Carex classification in its current state,which is misleading and confusing,we here take the intermediate steps of implementing the recently revised subgeneric classification and using a combination of informally named clades and formally named sections to reflect the current state of our knowledge.This hybrid classification framework is presented in an order corresponding to a linear arrangement of the clades on a ladderized phylogeny,largely based on the recent phylogenies published by the GCG.It organizes Carex into six subgenera,which are,in turn,subdivided into 62 formally named Linnean sections plus 49 informal groups.This framework will serve as a roadmap for research on Carex phylogeny,enabling further development of a complete reclassification by presenting relevant morphological and geographical information on clades where possible and standardizing the use of formal sectional names. | Eric H.Roalson Pedro Jiménez-Mejías Andrew L.Hipp Carmen Benítez-Benítez Leo P.Bruederle Kyong-Sook Chung Marcial Escudero Bruce A.Ford Kerry Ford Sebastian Gebauer Berit Gehrke Marlene Hahn Muhammad Qasim Hayat Mathias H.Hoffmann Xiao-Feng Jin Sangtae Kim Isabel Larridon Étienne Léveillé-Bourret Yi-Fei Lu Modesto Luceño Enrique Maguilla Jose IgnacioMárquez-Corro Santiago Martín-Bravo Tomomi Masaki Mónica Míguez Robert F.C.Naczi Anton A.Reznicek Daniel Spalink Julian R.Starr Uzma Tamara Villaverde Marcia J.Waterway Karen L.Wilson and Shu-Ren Zhang | 2021 | Journal of Systematics and Evolution2021，59，4： | 3 |
| 3 | Multicellular natural convection in a high aspect ratio cavity:experimental and numerical results显示文摘 | Lartigue B Lorente S Bourret B | 2000 | Int J Heat Mass Transfer2000，43，： | 1 |
| 4 | Pumping energy and variable frequency drives显示文摘 | Bernier M A Bourret B | 1999 | ASHRAE Journal1999，41，12： | 1 |
| 5 | Enhancement of the selectivity and antitumor efficacy of a CC-1065 analogue through immunoconjugate formation 显示文摘 | Chari R V Jackel K A Bourret L A | 1995 | Cancer Res1995，55，18： | 1 |
| 6 | Notes herpétologiques sur 1' Indochine Francaise Ⅹ Ⅳ-Ⅹ Ⅴ显示文摘 | Bourret R | 1937 | Bulletin Générale de l' Instruction Publique1937，，4： | 1 |
| 7 | Pumping energy and variable frequency drives显示文摘 | MICHEL A BERNIER BERNARD BOURRET | 1999 | ASHRAE Journal1999，，12： | 1 |
| 8 | Brownian Motion of Harmonic Oscillator with Stochastic Frequency 显示文摘 | Bourret R C | 1973 | Physica A1973，65，： | 1 |
| 9 | Epiphyseal cartilage cAMP changes produced by electrical and mechanical perturbations显示文摘 | Norton LA Rodan GA Bourret LA | 1997 | Clin Orthop1997，124，： | 1 |
| 10 | 显示文摘 | | 1991 | J Cryst Growth1991，110，： | 1 |
| 11 | Video QoS enhancement using perceptual quality metrics 显示文摘 | HANDS D BOURRET A BAYART D | 2005 | BT Technology2005，23，2： | 1 |
| 12 | Physiological importance of SR-BI in the in vivo metabolism of human HDL and LDL in male and female mice显示文摘 | Brodeur MR Luangrath V Bourret G | 2005 | J Lipid Res2005，46，： | 1 |
| 13 | Physiological impor-tance of SR-BI in the in vivo metabolism of human HDL and LDLin male and female mice显示文摘 | Brodeur MR Luangrath Y Bourret G | 2005 | J Lipid Res2005，46，4： | 1 |
| 14 | Dynamics of Bridgman-stockbarger growth of non-dilute binary alloys显示文摘 | Bourret E D Derby J J Brown R A | 1985 | Journal of Crystal Growth1985，71，3： | 1 |
| 15 | Folate-maytansinoids: target-selective drugs of low molecular weight 显示文摘 | LADINO C A CHARI R V BOURRET L A | 1997 | Int J Cancer1997，73，6： | 1 |
| 16 | Membrane topology and functional analysis of the sensory protein VirA of Agrobacterium tumefaciens 显示文摘 | Melchers L S Regensburg-Tuink T J G Bourret R B | 1989 | The EMBO Journal1989，8，7： | 1 |
| 17 | A Generic Load/ExtractUtility for Data Transfer between XML Documents and Relational Databases显示文摘 | C Bornhvd A Buchmann | 2000 | IEEE2000，，： | 1 |
| 18 | Polymer templated synthesis of AgCN and Ag nanowires 显示文摘 | LAZZARA T D BOURRET G R LENNOX R B | 2009 | Chemistry of Materials2009，21，10： | 1 |
| 19 | Pumping energy and variable frequency drives 显示文摘 | Bernier M A Bourret B | 1999 | ASHRAE Journal1999，41，12： | 1 |
| 20 | Signal transduction via the multi-step phosphorelay: not necessarily a road less traveled显示文摘 | Appleby J L Parkinson J S Bourret R B | 1996 | Cell1996，86，6： | 1 |
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