Deep phylogeographic structure and environmental differentiation in the carnivorous plant Sarracenia alata.

abstract：:Substitution rates are known to be variable among genes, chromosomes, species, and lineages due to multifarious biological processes. Here, we consider another source of substitution rate variation due to a technical bias associated with gene tree discordance. Discordance has been found to be rampant in genome-wide da...

journal_title：Systematic biology

authors： Mendes FK,Hahn MW

更新日期：2016-07-01 00:00:00

abstract：:Significant phylogenetic codivergence between plant or animal hosts (H) and their symbionts or parasites (P) indicates the importance of their interactions on evolutionary time scales. However, valid and realistic methods to test for codivergence are not fully developed. One of the systems where possible codivergence ...

journal_title：Systematic biology

authors： Schardl CL,Craven KD,Speakman S,Stromberg A,Lindstrom A,Yoshida R

更新日期：2008-06-01 00:00:00

abstract：:As an archive of sequence data for over 165,000 species, GenBank is an indispensable resource for phylogenetic inference. Here we describe an informatics processing pipeline and online database, the PhyLoTA Browser (http://loco.biosci.arizona.edu/pb), which offers a view of GenBank tailored for molecular phylogenetics...

journal_title：Systematic biology

authors： Sanderson MJ,Boss D,Chen D,Cranston KA,Wehe A

更新日期：2008-06-01 00:00:00

abstract：:Following (1) the large-scale molecular phylogeny of seed plants based on plastid rbcL gene sequences (published in 1993 by Chase et al., Ann. Missouri Bot. Gard. 80:528-580) and (2) the 18S nuclear phylogeny of flowering plants (published in 1997 by Soltis et al., Ann. Missouri Bot. Gard. 84:1-49), we present a phylo...

journal_title：Systematic biology

authors： Savolainen V,Chase MW,Hoot SB,Morton CM,Soltis DE,Bayer C,Fay MF,de Bruijn AY,Sullivan S,Qiu YL

更新日期：2000-06-01 00:00:00

abstract：:Whereas examples of insular speciation within the endemic-rich Macaronesian hotspot flora have been documented, the phylogeography of recently evolved plants in the region has received little attention. The Macaronesian red fescues constitute a narrow and recent radiation of four closely related diploid species distri...

journal_title：Systematic biology

authors： Díaz-Pérez A,Sequeira M,Santos-Guerra A,Catalán P

更新日期：2008-10-01 00:00:00

abstract：:Phylogenomic and paleontological data constitute complementary resources for unravelling the phylogenetic relationships and divergence times of lineages, yet few studies have attempted to fully integrate them. Several unique properties of echinoids (sea urchins) make them especially useful for such synthetizing approa...

journal_title：Systematic biology

authors： Koch NM,Thompson JR

更新日期：2020-09-03 00:00:00

abstract：:Understanding the origin of island endemics is a central task of historical biogeography. Recent methodological advances provide a rigorous framework to determine the relative contribution of different biogeographic processes (e.g., vicariance, land migration, long-distance dispersal) to the origin of island endemics....

journal_title：Systematic biology

authors： Salvo G,Ho SY,Rosenbaum G,Ree R,Conti E

更新日期：2010-12-01 00:00:00

abstract：:Species complexes undergoing rapid radiation present a challenge in molecular systematics because of the possibility that ancestral polymorphism is retained in component gene trees. Coalescent theory has demonstrated that gene trees often fail to match lineage trees when taxon divergence times are less than the ancest...

journal_title：Systematic biology

authors： Belfiore NM,Liu L,Moritz C

更新日期：2008-04-01 00:00:00

abstract：:Species are the starting point for most studies of ecology and evolution, but the proper circumscription of species can be extremely difficult in morphologically variable lineages, and there are still few convincing examples of molecularly informed species delimitation in plants. Here, we focus on the Viburnum nudum c...

journal_title：Systematic biology

authors： Spriggs EL,Eaton DAR,Sweeney PW,Schlutius C,Edwards EJ,Donoghue MJ

更新日期：2019-03-01 00:00:00

abstract：:Tree reconstruction methods are often judged by their accuracy, measured by how close they get to the true tree. Yet, most reconstruction methods like maximum likelihood (ML) do not explicitly maximize this accuracy. To address this problem, we propose a Bayesian solution. Given tree samples, we propose finding the tr...

journal_title：Systematic biology

authors： Huggins PM,Li W,Haws D,Friedrich T,Liu J,Yoshida R

更新日期：2011-07-01 00:00:00

abstract：:We explored the efficacy of species tree methods at the family level in birds, using the Australo-Papuan Fairy-wrens (Passeriformes: Maluridae) as a model system. Fairy-wrens of the genus Malurus are known for high intensities of sexual selection, resulting in some cases in rapid speciation. This history suggests that...

journal_title：Systematic biology

authors： Lee JY,Joseph L,Edwards SV

更新日期：2012-03-01 00:00:00

abstract：:All methods proposed to date for mapping landmark configurations on a phylogenetic tree start from an alignment generated by methods that make no use of phylogenetic information, usually by superimposing all configurations against a consensus configuration. In order to properly interpret differences between landmark c...

journal_title：Systematic biology

authors： Catalano SA,Goloboff PA

更新日期：2012-05-01 00:00:00

abstract：:Although concerns are being raised about a potential shortage of taxonomists and systematists, recent analyses suggest instead that the number of researchers involved in taxonomic descriptions is higher than ever and that the average number of new species described annually per taxonomist has declined in recent decade...

journal_title：Systematic biology

authors： Poulin R,Presswell B

更新日期：2016-11-01 00:00:00

abstract：:Rickettsia is a genus of intracellular bacteria whose hosts and transmission strategies are both impressively diverse, and this is reflected in a highly dynamic genome. Some previous studies have described the evolutionary history of Rickettsia as non-tree-like, due to incongruity between phylogenetic reconstructions ...

journal_title：Systematic biology

authors： Murray GG,Weinert LA,Rhule EL,Welch JJ

更新日期：2016-03-01 00:00:00

abstract：:Conifer-feeding sawflies in the genus Neodiprion provide an excellent opportunity to investigate the origin and maintenance of barriers to reproduction, but obtaining a phylogenetic estimate for comparative studies of Neodiprion speciation has proved difficult. Specifically, nonmonophyly within and discordance between...

journal_title：Systematic biology

authors： Linnen CR,Farrell BD

更新日期：2008-12-01 00:00:00

abstract：:Although most often used to represent phylogenetic uncertainty, network methods are also potentially useful for describing the phylogenetic complexity expected to characterize recent species radiations. One network method with particular advantages in this context is split decomposition. However, in its standard imple...

journal_title：Systematic biology

authors： Winkworth R,Bryant D,Lockhart P,Havell D,Moulton V

更新日期：2005-02-01 00:00:00

abstract：:It is common for studies that employ the comparative method for the study of adaptation, i.e. documentation of potentially adaptive across-species patterns of trait-environment or trait-trait correlation, to be designated as "macroevolutionary." Authors are justified in using "macroevolution" in this way by appeal to ...

journal_title：Systematic biology

authors： Olson ME

更新日期：2021-01-07 00:00:00

abstract：:Acoela are marine microscopic worms currently thought to be the sister taxon of all other bilaterians. Acoels have long been used as models in evolutionary scenarios, and generalized conclusions about acoel and bilaterian ancestral features are frequently drawn from studies of single acoel species. There is no extensi...

journal_title：Systematic biology

authors： Jondelius U,Wallberg A,Hooge M,Raikova OI

更新日期：2011-12-01 00:00:00

abstract：:We present a 6-gene, 420-species maximum-likelihood phylogeny of Ascomycota, the largest phylum of Fungi. This analysis is the most taxonomically complete to date with species sampled from all 15 currently circumscribed classes. A number of superclass-level nodes that have previously evaded resolution and were unnamed...

journal_title：Systematic biology

authors： Schoch CL,Sung GH,López-Giráldez F,Townsend JP,Miadlikowska J,Hofstetter V,Robbertse B,Matheny PB,Kauff F,Wang Z,Gueidan C,Andrie RM,Trippe K,Ciufetti LM,Wynns A,Fraker E,Hodkinson BP,Bonito G,Groenewald JZ,Arzanlou

更新日期：2009-04-01 00:00:00

abstract：:We prove that the slope parameter of the ordinary least squares regression of phylogenetically independent contrasts (PICs) conducted through the origin is identical to the slope parameter of the method of generalized least squares (GLSs) regression under a Brownian motion model of evolution. This equivalence has seve...

journal_title：Systematic biology

authors： Blomberg SP,Lefevre JG,Wells JA,Waterhouse M

更新日期：2012-05-01 00:00:00

abstract：:Phylogenetic reconstruction, divergence time estimations and ancestral range estimation were undertaken for 66% of the Afrotropical freshwater crab fauna (Potamonautidae) based on four partial DNA loci (12S rRNA, 16S rRNA, cytochrome oxidase one [COI], and histone 3). The present study represents the most comprehensiv...

journal_title：Systematic biology

authors： Daniels SR,Phiri EE,Klaus S,Albrecht C,Cumberlidge N

更新日期：2015-07-01 00:00:00

abstract：:Markov chain Monte Carlo (MCMC) is a methodology that is gaining widespread use in the phylogenetics community and is central to phylogenetic software packages such as MrBayes. An important issue for users of MCMC methods is how to select appropriate values for adjustable parameters such as the length of the Markov ch...

journal_title：Systematic biology

authors： Beiko RG,Keith JM,Harlow TJ,Ragan MA

更新日期：2006-08-01 00:00:00

abstract：:The dominance of angiosperms has played a direct role in the diversification of insects, especially Coleoptera. The shift to angiosperm feeding from other diets is likely to have increased the rate of speciation in Phytophaga. However, Phytophaga is only one of many hyperdiverse lineages of beetles and studies of host...

journal_title：Systematic biology

authors： Leschen RA,Buckley TR

更新日期：2007-02-01 00:00:00

abstract：:The obligate mutualism between pollinating fig wasps in the family Agaonidae (Hymenoptera: Chalcidoidea) and Ficus species (Moraceae) is often regarded as an example of co-evolution but little is known about the history of the interaction, and understanding the origin of functionally dioecious fig pollination has been...

journal_title：Systematic biology

authors： Weiblen GD

更新日期：2001-04-01 00:00:00

abstract：:We present a phylogenetic hypothesis and novel, rank-free classification for all extant species of softshell turtles (Testudines:Trionychidae). Our data set included DNA sequence data from two mitochondrial protein-coding genes and a approximately 1-kb nuclear intron for 23 of 26 recognized species, and 59 previously ...

journal_title：Systematic biology

authors： Engstrom TN,Shaffer HB,McCord WP

更新日期：2004-10-01 00:00:00

abstract：:Phylogenomic analyses have helped resolve many recalcitrant relationships in the angiosperm tree of life, yet phylogenetic resolution of the backbone of the Leguminosae, one of the largest and most economically and ecologically important families, remains poor due to generally limited molecular data and incomplete tax...

journal_title：Systematic biology

authors： Zhang R,Wang YH,Jin JJ,Stull GW,Bruneau A,Cardoso D,De Queiroz LP,Moore MJ,Zhang SD,Chen SY,Wang J,Li DZ,Yi TS

更新日期：2020-07-01 00:00:00

abstract：:Alignments of nucleotide or amino acid sequences may contain a variety of different signals, one of which is the historical signal that we often try to recover by phylogenetic analysis. Other signals, such as those arising due to compositional heterogeneities, among-lineage and among-site rate heterogeneities, invaria...

journal_title：Systematic biology

authors： Ho SY,Jermiin L

更新日期：2004-08-01 00:00:00

abstract：:Platyrrhine primates and caviomorph rodents are clades of mammals that colonized South America during its period of isolation from the other continents, between 100 and 3 million years ago (Mya). Until now, no molecular study investigated the timing of the South American colonization by these two lineages with the sam...

journal_title：Systematic biology

authors： Poux C,Chevret P,Huchon D,de Jong WW,Douzery EJ

更新日期：2006-04-01 00:00:00

abstract：:Sequence divergence for segments of three mitochondrial DNA (mtDNA) genes encoding the 12S and 16S ribosomal RNA and cytochrome b was examined in newts belonging to the genus Euproctus (E. asper, E. montanus, E. platycephalus) and in three other species belonging to the same family (Salamandridae), Triturus carnifex, ...

journal_title：Systematic biology

authors： Caccone A,Milinkovitch MC,Sbordoni V,Powell JR

更新日期：1997-03-01 00:00:00

abstract：:In this article, we use supermatrix data-mining methods to reconstruct a large, highly inclusive phylogeny of Cyperaceae from nucleotide data available on GenBank. We explore the properties of these trees and their utility for phylogenetic inference, and show that even the highly incomplete alignments characteristic o...

journal_title：Systematic biology

authors： Hinchliff CE,Roalson EH

更新日期：2013-03-01 00:00:00