abstract：BACKGROUND:Vertebrate SWS1 visual pigments mediate visual transduction in response to light at short wavelengths. Due to their importance in vision, SWS1 genes have been isolated from a surprisingly wide range of vertebrates, including lampreys, teleosts, amphibians, reptiles, birds, and mammals. The SWS1 genes exhibit...

journal_title：BMC evolutionary biology

authors： van Hazel I,Santini F,Müller J,Chang BS

更新日期：2006-11-15 00:00:00

abstract：BACKGROUND:The CACTA (also called En/Spm) superfamily of DNA-only transposons contain the core sequence CACTA in their Terminal Inverted Repeats (TIRs) and so far have only been described in plants. Large transcriptome and genome sequence data have recently become publicly available for Schistosoma mansoni, a digenetic...

journal_title：BMC evolutionary biology

authors： DeMarco R,Venancio TM,Verjovski-Almeida S

更新日期：2006-11-07 00:00:00

abstract：BACKGROUND:The functional repertoire of the human proteome is an incremental collection of functions accomplished by protein domains evolved along the Homo sapiens lineage. Therefore, knowledge on the origin of these functionalities provides a better understanding of the domain and protein evolution in human. The lack ...

journal_title：BMC evolutionary biology

authors： Pal LR,Guda C

更新日期：2006-11-07 00:00:00

abstract：BACKGROUND:The spread of agriculture greatly modified the selective pressures exerted by plants on phytophagous insects, by providing these insects with a high-level resource, structured in time and space. The life history, behavioural and physiological traits of some insect species may have evolved in response to thes...

journal_title：BMC evolutionary biology

authors： Lombaert E,Boll R,Lapchin L

更新日期：2006-10-02 00:00:00

abstract：BACKGROUND:A genome-wide comparative analysis of human and mouse gene expression patterns was performed in order to evaluate the evolutionary divergence of mammalian gene expression. Tissue-specific expression profiles were analyzed for 9,105 human-mouse orthologous gene pairs across 28 tissues. Expression profiles wer...

journal_title：BMC evolutionary biology

authors： Tsaparas P,Mariño-Ramírez L,Bodenreider O,Koonin EV,Jordan IK

更新日期：2006-09-12 00:00:00

abstract：BACKGROUND:Symbioses between invertebrates and prokaryotes are biological systems of particular interest in order to study the evolution of mutualism. The symbioses between the entomopathogenic nematodes Steinernema and their bacterial symbiont Xenorhabdus are very tractable model systems. Previous studies demonstrated...

journal_title：BMC evolutionary biology

authors： Sicard M,Hinsinger J,Le Brun N,Pages S,Boemare N,Moulia C

更新日期：2006-09-05 00:00:00

abstract：BACKGROUND:The number of species within the Malagasy genus Lepilemur and their phylogenetic relationships is disputed and controversial. In order to establish their evolutionary relationships, a comparative cytogenetic and molecular study was performed. We sequenced the complete mitochondrial cytochrome b gene (1140 bp...

journal_title：BMC evolutionary biology

authors： Andriaholinirina N,Fausser JL,Roos C,Zinner D,Thalmann U,Rabarivola C,Ravoarimanana I,Ganzhorn JU,Meier B,Hilgartner R,Walter L,Zaramody A,Langer C,Hahn T,Zimmermann E,Radespiel U,Craul M,Tomiuk J,Tattersall I,Rumpl

更新日期：2006-02-23 00:00:00

abstract：BACKGROUND:Lateral genetic transfer can lead to disagreements among phylogenetic trees comprising sequences from the same set of taxa. Where topological discordance is thought to have arisen through genetic transfer events, tree comparisons can be used to identify the lineages that may have shared genetic information. ...

journal_title：BMC evolutionary biology

authors： Beiko RG,Hamilton N

更新日期：2006-02-11 00:00:00

abstract：BACKGROUND:The rate of molecular evolution varies widely between proteins, both within and among lineages. To what extent is this variation influenced by genome-wide, lineage-specific effects? To answer this question, we assess the rate variation between insect lineages for a large number of orthologous genes. RESULTS...

journal_title：BMC evolutionary biology

authors： Savard J,Tautz D,Lercher MJ

更新日期：2006-01-25 00:00:00

abstract：BACKGROUND:Prior to the sequencing of the human genome it was typically assumed that, tandem duplication aside, gene order is for the most part random. Numerous observers, however, highlighted instances in which a ligand was linked to one of its cognate receptors, with some authors suggesting that this may be a general...

journal_title：BMC evolutionary biology

authors： Hurst LD,Lercher MJ

更新日期：2005-11-08 00:00:00

abstract：BACKGROUND:Thermus thermophilus and Deinococcus radiodurans belong to a distinct bacterial clade but have remarkably different phenotypes. T. thermophilus is a thermophile, which is relatively sensitive to ionizing radiation and desiccation, whereas D. radiodurans is a mesophile, which is highly radiation- and desiccat...

journal_title：BMC evolutionary biology

authors： Omelchenko MV,Wolf YI,Gaidamakova EK,Matrosova VY,Vasilenko A,Zhai M,Daly MJ,Koonin EV,Makarova KS

更新日期：2005-10-20 00:00:00

abstract：BACKGROUND:Probabilistic methods have progressively supplanted the Maximum Parsimony (MP) method for inferring phylogenetic trees. One of the major reasons for this shift was that MP is much more sensitive to the Long Branch Attraction (LBA) artefact than is Maximum Likelihood (ML). However, recent work by Kolaczkowski...

journal_title：BMC evolutionary biology

authors： Philippe H,Zhou Y,Brinkmann H,Rodrigue N,Delsuc F

更新日期：2005-10-06 00:00:00

abstract：BACKGROUND:Rodent and primate pregnancy-specific glycoprotein (PSG) gene families have expanded independently from a common ancestor and are expressed virtually exclusively in placental trophoblasts. However, within each species, it is unknown whether multiple paralogs have been selected for diversification of function...

journal_title：BMC evolutionary biology

authors： McLellan AS,Zimmermann W,Moore T

更新日期：2005-06-29 00:00:00

abstract：BACKGROUND:Co-evolutionary arms races between parasites and hosts are considered to be of immense importance in the evolution of living organisms, potentially leading to highly dynamic life-history changes. The outcome of such arms races is in many cases thought to be determined by frequency dependent selection, which ...

journal_title：BMC evolutionary biology

authors： Schulenburg H,Ewbank JJ

更新日期：2004-11-22 00:00:00

abstract：BACKGROUND:As key regulators of mitotic chromosome segregation, the Aurora family of serine/threonine kinases play an important role in cell division. Abnormalities in Aurora kinases have been strongly linked with cancer, which has lead to the recent development of new classes of anti-cancer drugs that specifically tar...

journal_title：BMC evolutionary biology

authors： Brown JR,Koretke KK,Birkeland ML,Sanseau P,Patrick DR

更新日期：2004-10-12 00:00:00

abstract：BACKGROUND:While the pathogenesis and epidemiology of tuberculosis are well studied, relatively little is known about the evolution of the infectious agent Mycobacterium tuberculosis, especially at the within-host level. The insertion sequence IS6110 is a genetic marker that is widely used to track the transmission of ...

journal_title：BMC evolutionary biology

authors： Tanaka MM

更新日期：2004-09-09 00:00:00

abstract：BACKGROUND:The typical antbirds (Thamnophilidae) form a monophyletic and diverse family of suboscine passerines that inhabit neotropical forests. However, the phylogenetic relationships within this assemblage are poorly understood. Herein, we present a hypothesis of the generic relationships of this group based on Baye...

journal_title：BMC evolutionary biology

authors： Irestedt M,Fjeldså J,Nylander JA,Ericson PG

更新日期：2004-07-30 00:00:00

abstract：BACKGROUND:Gene duplication is an important mechanism that can lead to the emergence of new functions during evolution. The impact of duplication on the mode of gene evolution has been the subject of several theoretical and empirical comparative-genomic studies. It has been shown that, shortly after the duplication, ge...

journal_title：BMC evolutionary biology

authors： Jordan IK,Wolf YI,Koonin EV

更新日期：2004-07-06 00:00:00

abstract：BACKGROUND:Most analysis programs for inferring molecular phylogenies are difficult to use, in particular for researchers with little programming experience. RESULTS:TREEFINDER is an easy-to-use integrative platform-independent analysis environment for molecular phylogenetics. In this paper the main features of TREEFI...

journal_title：BMC evolutionary biology

authors： Jobb G,von Haeseler A,Strimmer K

更新日期：2004-06-28 00:00:00

abstract：BACKGROUND:Insecticide resistance is now common in insects due to the frequent use of chemicals to control them, which provides a useful tool to study the adaptation of eukaryotic genome to new environments. Although numerous potential mutations may provide high level of resistance, only few alleles are found in insect...

journal_title：BMC evolutionary biology

authors： Shi MA,Lougarre A,Alies C,Frémaux I,Tang ZH,Stojan J,Fournier D

更新日期：2004-02-06 00:00:00

abstract：BACKGROUND:Many groups of land snails show great interspecific diversity in shell ornamentation, which may include spines on the shell and flanges on the aperture. Such structures have been explained as camouflage or defence, but the possibility that they might be under sexual selection has not previously been explored...

journal_title：BMC evolutionary biology

authors： Schilthuizen M

更新日期：2003-06-05 00:00:00

abstract：BACKGROUND:It has been shown for an evolutionarily distant genomic comparison that the number of protein-protein interactions a protein has correlates negatively with their rates of evolution. However, the generality of this observation has recently been challenged. Here we examine the problem using protein-protein int...

journal_title：BMC evolutionary biology

authors： Fraser HB,Wall DP,Hirsh AE

更新日期：2003-05-23 00:00:00

abstract：BACKGROUND:Molecular biological techniques are dramatically changing our view of microbial diversity in almost any environment that has so far been investigated. This study presents a systematic survey of the microbial diversity associated with a population of Acromyrmex leafcutter ants. In contrast to previous studies...

journal_title：BMC evolutionary biology

authors： Van Borm S,Billen J,Boomsma JJ

更新日期：2002-05-03 00:00:00

abstract：BACKGROUND:The availability of multiple complete genome sequences from diverse taxa prompts the development of new phylogenetic approaches, which attempt to incorporate information derived from comparative analysis of complete gene sets or large subsets thereof. Such attempts are particularly relevant because of the ma...

journal_title：BMC evolutionary biology

authors： Wolf YI,Rogozin IB,Grishin NV,Tatusov RL,Koonin EV

更新日期：2001-10-20 00:00:00

abstract：BACKGROUND:Genomic sequence analyses have shown that horizontal gene transfer occurred during the origin of eukaryotes as a consequence of symbiosis. However, details of the timing and number of symbiotic events are unclear. A timescale for the early evolution of eukaryotes would help to better understand the relations...

journal_title：BMC evolutionary biology

authors： Hedges SB,Chen H,Kumar S,Wang DY,Thompson AS,Watanabe H

更新日期：2001-01-01 00:00:00

abstract：BACKGROUND:Any DNA sequence is a result of compromise between the selection and mutation pressures exerted on it during evolution. It is difficult to estimate the relative influence of each of these pressures on the rate of accumulation of substitutions. However, it is important to discriminate between the effect of mu...

journal_title：BMC evolutionary biology

authors： Kowalczuk M,Mackiewicz P,Mackiewicz D,Nowicka A,Dudkiewicz M,Dudek MR,Cebrat S

更新日期：2001-01-01 00:00:00