abstract：BACKGROUND:An early dispersal of biologically and behaviorally modern humans from their African origins to Australia, by at least 45 thousand years via southern Asia has been suggested by studies based on morphology, archaeology and genetics. However, mtDNA lineages sampled so far from south Asia, eastern Asia and Aust...

journal_title：BMC evolutionary biology

authors： Kumar S,Ravuri RR,Koneru P,Urade BP,Sarkar BN,Chandrasekar A,Rao VR

更新日期：2009-07-22 00:00:00

abstract：BACKGROUND:Senescence is integral to the flowering plant life-cycle. Senescence-like processes occur also in non-angiosperm land plants, algae and photosynthetic prokaryotes. Increasing numbers of genes have been assigned functions in the regulation and execution of angiosperm senescence. At the same time there has bee...

journal_title：BMC evolutionary biology

authors： Thomas H,Huang L,Young M,Ougham H

更新日期：2009-07-14 00:00:00

abstract：BACKGROUND:The seacoasts of the Japanese Arc are fringed by many gravel beaches owing to active tectonic uplift and intense denudation caused by heavy rainfall. These gravel beaches are inhabited by gobies of the genus Luciogobius that burrow into the gravel sediment and live interstitially. Although their habitat and ...

journal_title：BMC evolutionary biology

authors： Yamada T,Sugiyama T,Tamaki N,Kawakita A,Kato M

更新日期：2009-06-28 00:00:00

abstract：BACKGROUND:Conflicts of interest between the sexes are increasingly recognized as an engine driving the (co-)evolution of reproductive traits. The reproductive behaviour of Drosophila montana suggests the occurrence of sexual conflict over the duration of copulation. During the last stages of copulation, females vigoro...

journal_title：BMC evolutionary biology

authors： Mazzi D,Kesäniemi J,Hoikkala A,Klappert K

更新日期：2009-06-12 00:00:00

abstract：BACKGROUND:The 12-oxo-phytodienoic acid reductases (OPRs) are enzymes that catalyze the reduction of double-bonds in alpha, beta-unsaturated aldehydes or ketones and are part of the octadecanoid pathway that converts linolenic acid to jasmonic acid. In plants, OPRs belong to the old yellow enzyme family and form multig...

journal_title：BMC evolutionary biology

authors： Li W,Liu B,Yu L,Feng D,Wang H,Wang J

更新日期：2009-05-05 00:00:00

abstract：BACKGROUND:While numerous studies revealed the major role of environmental changes of the Quaternary on the evolution of biodiversity, research on the influence of that period on current South-American fauna is scarce and have usually focused on lowland regions. In this study, the genetic structure of the pampas cat (L...

journal_title：BMC evolutionary biology

authors： Cossíos D,Lucherini M,Ruiz-García M,Angers B

更新日期：2009-03-30 00:00:00

abstract：BACKGROUND:Phylogenies often contain both well-supported and poorly supported nodes. Determining how much additional data might be required to eventually recover most or all nodes with high support is an important pragmatic goal, and simulations have been used to examine this question. Most simulations have been based ...

journal_title：BMC evolutionary biology

authors： Spinks PQ,Thomson RC,Lovely GA,Shaffer HB

更新日期：2009-03-12 00:00:00

abstract：BACKGROUND:Although the gene encoding for glutamine synthetase (glnA) is essential in several organisms, multiple glnA copies have been identified in bacterial genomes such as those of the phylum Actinobacteria, notably the mycobacterial species. Intriguingly, previous reports have shown that only one copy (glnA1) is e...

journal_title：BMC evolutionary biology

authors： Hayward D,van Helden PD,Wiid IJ

更新日期：2009-02-26 00:00:00

abstract：BACKGROUND:The evolution of insecticide resistance and persistence of resistance phenotypes are influenced by the fitness of resistance alleles in the absence of insecticide pressure. Experimental determination of fitness is difficult, but fitness can be inferred by measuring changes in allele frequencies in appropriat...

journal_title：BMC evolutionary biology

authors： Hardstone MC,Lazzaro BP,Scott JG

更新日期：2009-02-19 00:00:00

abstract：BACKGROUND:Perception of sugars is an invaluable ability for insects which often derive quickly accessible energy from these molecules. A distinctive subfamily of eight proteins within the gustatory receptor (Gr) family has been identified as sugar receptors (SRs) in Drosophila melanogaster (Gr5a, Gr61a, and Gr64a-f). ...

journal_title：BMC evolutionary biology

authors： Kent LB,Robertson HM

更新日期：2009-02-18 00:00:00

abstract：BACKGROUND:Sex differences in lifespan are ubiquitous throughout the animal kingdom but the causes underlying this phenomenon remain poorly understood. Several explanations based on asymmetrical inheritance patterns (sex chromosomes or mitochondrial DNA) have been proposed, but these ideas have rarely been tested exper...

journal_title：BMC evolutionary biology

authors： Bilde T,Maklakov AA,Meisner K,la Guardia L,Friberg U

更新日期：2009-02-06 00:00:00

abstract：BACKGROUND:The histone H2A family encompasses the greatest number of core histone variants of which the replacement variant H2A.Z is currently one of the most heavily studied. No clear mechanism for the functional variability that H2A.Z imparts to chromatin has yet been proposed. While most of the past studies have ref...

journal_title：BMC evolutionary biology

authors： Eirín-López JM,González-Romero R,Dryhurst D,Ishibashi T,Ausió J

更新日期：2009-02-04 00:00:00

abstract：BACKGROUND:Uncoupling protein 1 (UCP1) is a mitochondrial anion carrier, expressed in brown adipose tissue (BAT) of Eutherians. UCP1 is responsible for uncoupling mitochondrial proton transport from the production of ATP, thereby dissipating heat; it is essential for non-shivering thermogenesis (NST) in mammalian BAT. ...

journal_title：BMC evolutionary biology

authors： Hughes DA,Jastroch M,Stoneking M,Klingenspor M

更新日期：2009-01-07 00:00:00

abstract：BACKGROUND:The multiplicity or loss of the vitellogenin (vtg) gene family in vertebrates has been argued to have broad implications for the mode of reproduction (placental or non-placental), cleavage pattern (meroblastic or holoblastic) and character of the egg (pelagic or benthic). Earlier proposals for the existence ...

journal_title：BMC evolutionary biology

authors： Finn RN,Kolarevic J,Kongshaug H,Nilsen F

更新日期：2009-01-05 00:00:00

abstract：BACKGROUND:The filamentous fungus Ashbya gossypii grows into a multicellular mycelium that is distinct from the unicellular morphology of its closely related yeast species. It has been proposed that genes important for cell cycle regulation play central roles for such phenotypic differences. Because A. gossypii shares ...

journal_title：BMC evolutionary biology

authors： Jiang H,Zhang Y,Sun J,Wang W,Gu Z

更新日期：2008-12-29 00:00:00

abstract：BACKGROUND:Genetic breaks separating regional lineages of marine organisms with potentially high broadcasting abilities are generally attributed either to dispersal barriers such as currents or upwelling, or to behavioural strategies promoting self-recruitment. We investigated whether such patterns could potentially al...

journal_title：BMC evolutionary biology

authors： Teske PR,Papadopoulos I,Newman BK,Dworschak PC,McQuaid CD,Barker NP

更新日期：2008-12-24 00:00:00

abstract：BACKGROUND:Adaptive protein evolution is common in several Drosophila species investigated. Some studies point to very weak selection operating on amino-acid mutations, with average selection intensities on the order of Nes approximately in D. melanogaster and D. simulans. Species with lower effective population sizes ...

journal_title：BMC evolutionary biology

authors： Bachtrog D

更新日期：2008-12-18 00:00:00

abstract：BACKGROUND:Widely used substitution models for proteins, such as the Jones-Taylor-Thornton (JTT) or Whelan and Goldman (WAG) models, are based on empirical amino acid interchange matrices estimated from databases of protein alignments that incorporate the average amino acid frequencies of the data set under examination...

journal_title：BMC evolutionary biology

authors： Wang HC,Li K,Susko E,Roger AJ

更新日期：2008-12-16 00:00:00

abstract：BACKGROUND:The mitochondria of contemporary organisms contain fewer genes than the ancestral bacteria are predicted to have contained. Because most of the mitochondrial proteins are encoded in the nucleus, the genes would have been transferred from the mitochondrion to the nucleus at some stage of evolution and they mu...

journal_title：BMC evolutionary biology

authors： Kubo N,Fujimoto M,Arimura S,Hirai M,Tsutsumi N

更新日期：2008-11-14 00:00:00

abstract：BACKGROUND:Plant genomes contain a high proportion of duplicated genes as a result of numerous whole, segmental and local duplications. These duplications lead up to the formation of gene families, which are the usual material for many evolutionary studies. However, all characterized genomes include single-copy (unique...

journal_title：BMC evolutionary biology

authors： Armisén D,Lecharny A,Aubourg S

更新日期：2008-10-10 00:00:00

abstract：BACKGROUND:DNA encoding for ribosomal RNA (rDNA) is arranged in tandemly-repeated subunits, each containing ribosomal genes and non-coding spacers. Because tandemly-repeated, rDNA evolves under a balanced influence of selection and "concerted evolution", which homogenizes rDNA variants over the genome (through genomic ...

journal_title：BMC evolutionary biology

authors： Ricci A,Scali V,Passamonti M

更新日期：2008-10-09 00:00:00

abstract：BACKGROUND:Related species, such as humans and chimpanzees, often experience the same disease with varying degrees of pathology, as seen in the cases of Alzheimer's disease, or differing symptomatology as in AIDS. Furthermore, certain diseases such as schizophrenia, epithelial cancers and autoimmune disorders are far m...

journal_title：BMC evolutionary biology

authors： Vamathevan JJ,Hasan S,Emes RD,Amrine-Madsen H,Rajagopalan D,Topp SD,Kumar V,Word M,Simmons MD,Foord SM,Sanseau P,Yang Z,Holbrook JD

更新日期：2008-10-06 00:00:00

abstract：BACKGROUND:Moths have evolved highly successful mating systems, relying on species-specific mixtures of sex pheromone components for long-distance mate communication. Acyl-CoA desaturases are key enzymes in the biosynthesis of these compounds and to a large extent they account for the great diversity of pheromone struc...

journal_title：BMC evolutionary biology

authors： Liénard MA,Strandh M,Hedenström E,Johansson T,Löfstedt C

更新日期：2008-10-02 00:00:00

abstract：BACKGROUND:The L-lactate and D-lactate dehydrogenases, which are involved in the reduction of pyruvate to L(-)-lactate and D(+)-lactate, belong to evolutionarily unrelated enzyme families. The genes encoding L-LDH have been used as a model for gene duplication due to the multiple paralogs found in eubacteria, archaebac...

journal_title：BMC evolutionary biology

authors： Cristescu ME,Innes DJ,Stillman JH,Crease TJ

更新日期：2008-10-01 00:00:00

abstract：BACKGROUND:Teleost radiation in the oceans required specific physiological adaptations in eggs and early embryos to survive in the hyper-osmotic seawater. Investigating the evolution of aquaporins (AQPs) in these vertebrates should help to elucidate how mechanisms for water homeostasis evolved. The marine teleost gilth...

journal_title：BMC evolutionary biology

authors： Tingaud-Sequeira A,Chauvigné F,Fabra M,Lozano J,Raldúa D,Cerdà J

更新日期：2008-09-23 00:00:00

abstract：BACKGROUND:The rate of nucleotide substitutions is not constant across the Tree of Life, and departures from a molecular clock have been commonly reported. Within parmelioid lichens, the largest group of macrolichens, large discrepancies in branch lengths between clades were found in previous studies. Using an extended...

journal_title：BMC evolutionary biology

authors： Lumbsch HT,Hipp AL,Divakar PK,Blanco O,Crespo A

更新日期：2008-09-22 00:00:00

abstract：BACKGROUND:Hemerythrins, are the non-heme, diiron binding respiratory proteins of brachiopods, priapulids and sipunculans; they are also found in annelids and bacteria, where their functions have not been fully elucidated. RESULTS:A search for putative Hrs in the genomes of 43 archaea, 444 bacteria and 135 eukaryotes,...

journal_title：BMC evolutionary biology

authors： Bailly X,Vanin S,Chabasse C,Mizuguchi K,Vinogradov SN

更新日期：2008-09-02 00:00:00

abstract：BACKGROUND:The bananaquit (Coereba flaveola) is a small nectivorous and frugivorous emberizine bird (order Passeriformes) that is an abundant resident throughout the Caribbean region. We used multi-gene analyses to investigate the evolutionary history of this species throughout its distribution in the West Indies and i...

journal_title：BMC evolutionary biology

authors： Bellemain E,Bermingham E,Ricklefs RE

更新日期：2008-08-22 00:00:00

abstract：BACKGROUND:Ants of the genus Lasius are ecologically important and an important system for evolutionary research. Progress in evolutionary research has been hindered by the lack of a well-founded phylogeny of the subgenera, with three previous attempts disagreeing. Here we employed two mitochondrial genes (cytochrome c...

journal_title：BMC evolutionary biology

authors： Maruyama M,Steiner FM,Stauffer C,Akino T,Crozier RH,Schlick-Steiner BC

更新日期：2008-08-19 00:00:00

abstract：BACKGROUND:Transposable elements (TEs) constitute a substantial amount of all eukaryotic genomes. They induce an important proportion of deleterious mutations by insertion into genes or gene regulatory regions. However, their mutational capabilities are not always adverse but can contribute to the genetic diversity and...

journal_title：BMC evolutionary biology

authors： García Guerreiro MP,Chávez-Sandoval BE,Balanyà J,Serra L,Fontdevila A

更新日期：2008-08-14 00:00:00

abstract：BACKGROUND:ADP-glucose pyrophosphorylase (AGPase), which catalyses a rate limiting step in starch synthesis, is a heterotetramer comprised of two identical large and two identical small subunits in plants. Although the large and small subunits are equally sensitive to activity-altering amino acid changes when expressed...

journal_title：BMC evolutionary biology

authors： Georgelis N,Braun EL,Hannah LC

更新日期：2008-08-12 00:00:00

abstract：BACKGROUND:The TRIM family is composed of multi-domain proteins that display the Tripartite Motif (RING, B-box and Coiled-coil) that can be associated with a C-terminal domain. TRIM genes are involved in ubiquitylation and are implicated in a variety of human pathologies, from Mendelian inherited disorders to cancer, a...

journal_title：BMC evolutionary biology

authors： Sardiello M,Cairo S,Fontanella B,Ballabio A,Meroni G

更新日期：2008-08-01 00:00:00

abstract：BACKGROUND:The existence of "ancient asexuals", taxa that have persisted for long periods of evolutionary history without sexual recombination, is both controversial and important for our understanding of the evolution and maintenance of sexual reproduction. A lack of sex has consequences not only for the ecology of th...

journal_title：BMC evolutionary biology

authors： Lunt DH

更新日期：2008-07-07 00:00:00

abstract：BACKGROUND:Minor alleles of the human dopamine receptor polymorphisms, DRD2/TaqI A and DRD4/48 bp, are related to decreased functioning and/or numbers of their respective receptors and have been shown to be correlated with body mass, height and food craving. In addition, the 7R minor allele of the DRD4 gene is at a hig...

journal_title：BMC evolutionary biology

authors： Eisenberg DT,Campbell B,Gray PB,Sorenson MD

更新日期：2008-06-10 00:00:00

abstract：BACKGROUND:Freshwater unionoidean bivalves, and species representing two marine bivalve orders (Mytiloida and Veneroida), exhibit a mode of mtDNA inheritance involving distinct maternal (F) and paternal (M) transmission routes concomitant with highly divergent gender-associated mtDNA genomes. Additionally, male unionoi...

journal_title：BMC evolutionary biology

authors： Chapman EG,Piontkivska H,Walker JM,Stewart DT,Curole JP,Hoeh WR

更新日期：2008-05-31 00:00:00

abstract：BACKGROUND:Recent studies have revealed an unexpected diversity of domain architecture among FcR-like receptors that presumably fulfill regulatory functions in the immune system. Different species of mammals, as well as chicken and catfish have been found to possess strikingly different sets of these receptors. To bett...

journal_title：BMC evolutionary biology

authors： Guselnikov SV,Ramanayake T,Erilova AY,Mechetina LV,Najakshin AM,Robert J,Taranin AV

更新日期：2008-05-16 00:00:00

abstract：BACKGROUND:Oceans are high gene flow environments that are traditionally believed to hamper the build-up of genetic divergence. Despite this, divergence appears to occur occasionally at surprisingly small scales. The Galápagos archipelago provides an ideal opportunity to examine the evolutionary processes of local dive...

journal_title：BMC evolutionary biology

authors： Wolf JB,Harrod C,Brunner S,Salazar S,Trillmich F,Tautz D

更新日期：2008-05-16 00:00:00

abstract：BACKGROUND:G protein-coupled receptors (GPCRs) constitute a large family of integral transmembrane receptor proteins that play a central role in signal transduction in eukaryotes. The genome of the protochordate Ciona intestinalis has a compact size with an ancestral complement of many diversified gene families of vert...

journal_title：BMC evolutionary biology

authors： Kamesh N,Aradhyam GK,Manoj N

更新日期：2008-05-01 00:00:00

abstract：BACKGROUND:The self-fertile hermaphrodite worm C. elegans is an important model organism for biology, yet little is known about the origin and persistence of the self-fertilizing mode of reproduction in this lineage. Recent work has demonstrated an extraordinary degree of selfing combined with a high deleterious mutati...

journal_title：BMC evolutionary biology

authors： Loewe L,Cutter AD

更新日期：2008-04-30 00:00:00

abstract：BACKGROUND:Genomes of lower organisms have been observed with a large amount of horizontal gene transfers, which cause difficulties in their evolutionary study. Bacteriophage genomes are a typical example. One recent approach that addresses this problem is the unsupervised clustering of genomes based on gene order and ...

journal_title：BMC evolutionary biology

authors： Li J,Halgamuge SK,Tang SL

更新日期：2008-04-23 00:00:00