Heads or tails: a simple reliability check for multiple sequence alignments.

abstract：:Proteomic analyses of the nucleolus have revealed almost 700 functionally diverse proteins implicated in ribosome biogenesis, nucleolar assembly, and regulation of vital cellular processes. However, this nucleolar inventory has not unveiled a specific consensus motif necessary for nucleolar binding. The ribosomal prot...

journal_title：Molecular biology and evolution

authors： Kundu-Michalik S,Bisotti MA,Lipsius E,Bauche A,Kruppa A,Klokow T,Kammler G,Kruppa J

更新日期：2008-03-01 00:00:00

abstract：:4.5SH RNA is a 94-nt small RNA with unknown function. This RNA is known to be present in the mouse, rat, and hamster cells; however, it is not found in human, rabbit, and chicken. In the mouse genome, the 4.5SH RNA gene is a part of a long (4.2 kb) tandem repeat ( approximately 800 copies) unit. Here, we found that 4....

journal_title：Molecular biology and evolution

authors： Gogolevskaya IK,Koval AP,Kramerov DA

更新日期：2005-07-01 00:00:00

abstract：:Much like other indigenous domesticated animals, Tibetan chickens living at high altitudes (2,200-4,100 m) show specific physiological adaptations to the extreme environmental conditions of the Tibetan Plateau, but the genetic bases of these adaptations are not well characterized. Here, we assembled a de novo genome o...

journal_title：Molecular biology and evolution

authors： Wang MS,Li Y,Peng MS,Zhong L,Wang ZJ,Li QY,Tu XL,Dong Y,Zhu CL,Wang L,Yang MM,Wu SF,Miao YW,Liu JP,Irwin DM,Wang W,Wu DD,Zhang YP

更新日期：2015-07-01 00:00:00

abstract：:Gene expression changes contribute to complex trait variations in both individuals and populations. However, the evolution of gene expression underlying complex traits over macroevolutionary timescales remains poorly understood. Snake venoms are proteinaceous cocktails where the expression of each toxin can be quantif...

journal_title：Molecular biology and evolution

authors： Barua A,Mikheyev AS

更新日期：2019-09-01 00:00:00

abstract：:Taxonomic congruence and total evidence are competing paradigms in phylogenetic inference. Taxonomic congruence focuses on deriving a consensus from the results obtained from separately analyzed data sets, whereas total evidence uses character congruence in the search for the best-fitting hypothesis for all of the ava...

journal_title：Molecular biology and evolution

authors： Eernisse DJ,Kluge AG

更新日期：1993-11-01 00:00:00

abstract：:Inactivation of the X chromosome in the male germ line has been suggested to contribute to the excess of gene movement off the X chromosome and the paucity of X-linked male-biased genes that have been observed in Drosophila species. Recent experimental work has demonstrated the transcriptional inactivation of the X ch...

journal_title：Molecular biology and evolution

authors： Kemkemer C,Hense W,Parsch J

更新日期：2011-05-01 00:00:00

abstract：:The mutation rate of an organism is influenced by the interaction of evolutionary forces such as natural selection and genetic drift. However, the mutation spectrum (i.e., the frequency distribution of different types of mutations) can be heavily influenced by DNA repair. Using mutation-accumulation lines of the extre...

journal_title：Molecular biology and evolution

authors： Long H,Miller SF,Williams E,Lynch M

更新日期：2018-10-01 00:00:00

abstract：:The diversity of color vision systems found in extant vertebrates suggests that different evolutionary selection pressures have driven specializations in photoreceptor complement and visual pigment spectral tuning appropriate for an animal's behavior, habitat, and life history. Aquatic vertebrates in particular show h...

journal_title：Molecular biology and evolution

authors： Hart NS,Lamb TD,Patel HR,Chuah A,Natoli RC,Hudson NJ,Cutmore SC,Davies WIL,Collin SP,Hunt DM

更新日期：2020-03-01 00:00:00

abstract：:Multiple sequence alignment (MSA) is the heart of comparative sequence analysis. Recent studies demonstrate that MSA algorithms can produce different outcomes when analyzing genomes, including phylogenetic tree inference and the detection of adaptive evolution. These studies also suggest that the difference between MS...

journal_title：Molecular biology and evolution

authors： Blackburne BP,Whelan S

更新日期：2013-03-01 00:00:00

abstract：:Photosystem II, the water oxidizing enzyme, altered the course of evolution by filling the atmosphere with oxygen. Here, we reconstruct the origin and evolution of water oxidation at an unprecedented level of detail by studying the phylogeny of all D1 subunits, the main protein coordinating the water oxidizing cluster...

journal_title：Molecular biology and evolution

authors： Cardona T,Murray JW,Rutherford AW

更新日期：2015-05-01 00:00:00

abstract：:Cyclooxygenase (COX) produces prostaglandins in animals via the oxidation and reduction of arachidonic acid. Different types and numbers of COX genes have been found in corals, sea squirts, fishes, and tetrapods, but no study has used a comparative phylogenetic approach to investigate the evolutionary history of this ...

journal_title：Molecular biology and evolution

authors： Havird JC,Miyamoto MM,Choe KP,Evans DH

更新日期：2008-11-01 00:00:00

abstract：:Gene unscrambling in spirotrichous ciliates involves massive genome-wide DNA deletion and rearrangement events during development. During each sexual cycle, the somatic nucleus (macronucleus) regenerates from the germ line nucleus (micronucleus). Development of the polyploid somatic genome requires programmed DNA dele...

journal_title：Molecular biology and evolution

authors： Wong LC,Landweber LF

更新日期：2006-04-01 00:00:00

abstract：:Natural selection is expected to act strongly on immune system genes as hosts adapt to novel, diverse, and coevolving pathogens. Population genetic studies of host defense genes with parallel functions in model organisms have revealed distinct evolutionary histories among the different components-receptors, adaptors, ...

journal_title：Molecular biology and evolution

authors： Fornarino S,Laval G,Barreiro LB,Manry J,Vasseur E,Quintana-Murci L

更新日期：2011-11-01 00:00:00

abstract：:Phenotypes and behaviors respond to resource constraints via adaptation, but the influence of ecological limitations on the composition of eukaryotic genomes is still unclear. We trace connections between plant ecology and genomes through their elemental composition. Inorganic sources of nitrogen (N) are severely limi...

journal_title：Molecular biology and evolution

authors： Acquisti C,Elser JJ,Kumar S

更新日期：2009-05-01 00:00:00

abstract：:Molecular clocks are routinely tested for linearity using a relative rate test and routinely calibrated against the geological time scale using a single or average paleontologically determined time of divergence between living taxa. The relative rate test is a test of parallel rate equality, not a test of rate constan...

journal_title：Molecular biology and evolution

authors： Gingerich PD

更新日期：1986-05-01 00:00:00

abstract：:The Sp family of transcription factors binds GC-rich DNA sequences. The ubiquitously expressed Sp1 and Sp3 have been well characterized in mammals. Presented here is the characterization of the only Sp protein expressed in the liver or heart tissue of the teleost fish Fundulus heteroclitus. This protein, fSp3, is most...

journal_title：Molecular biology and evolution

authors： Kolell KJ,Crawford DL

更新日期：2002-03-01 00:00:00

abstract：:The field of ancient DNA (aDNA) is casting new light on many evolutionary questions. However, problems associated with the postmortem instability of DNA may complicate the interpretation of aDNA data. For example, in population genetic studies, the inclusion of damaged DNA may inflate estimates of diversity. In this p...

journal_title：Molecular biology and evolution

authors： Axelsson E,Willerslev E,Gilbert MT,Nielsen R

更新日期：2008-10-01 00:00:00

abstract：:Evolution of sequences mostly involves independent changes at different sites. However, substitutions at neighboring sites may co-occur as multinucleotide replacement events (MNRs). Here, we compare noncoding sequences of several species of primates, and of three species of Drosophila fruit flies, in a phylogenetic an...

journal_title：Molecular biology and evolution

authors： Terekhanova NV,Bazykin GA,Neverov A,Kondrashov AS,Seplyarskiy VB

更新日期：2013-06-01 00:00:00

abstract：:How is adaptability generated in a system composed of interacting cellular machineries, each with a separate and functionally critical job to perform? The machinery for organelle inheritance is precisely one such system, requiring coordination between robust and ancient cellular modules, including the cell cycle, cyto...

journal_title：Molecular biology and evolution

authors： Mast FD,Rachubinski RA,Dacks JB

更新日期：2012-03-01 00:00:00

abstract：:The mitoribosome, as known from studies in model organisms, deviates considerably from its ancestor, the bacterial ribosome. Deviations include substantial reduction of the mitochondrial ribosomal RNA (mt-rRNA) structure and acquisition of numerous mitochondrion-specific (M) mitoribosomal proteins (mtRPs). A broadly a...

journal_title：Molecular biology and evolution

authors： Valach M,Alcazar JAG,Sarrasin M,Lang BF,Gray MW,Burger G

更新日期：2020-09-04 00:00:00

abstract：:Whole genome duplications (WGDs) have been hypothesized to be responsible for major transitions in evolution. However, the effects of WGD and subsequent gene loss on cellular behavior and metabolism are still poorly understood. Here we develop a genome scale evolutionary model to study the dynamics of gene loss and me...

journal_title：Molecular biology and evolution

authors： van Hoek MJ,Hogeweg P

更新日期：2009-11-01 00:00:00

abstract：:We examined 43 biallelic polymorphisms on the nonrecombining portion of the Y chromosome (NRY) in 50 human populations encompassing a total of 2,858 males to study the geographic structure of Y-chromosome variation. Patterns of NRY diversity varied according to geographic region and method/level of comparison. For exa...

journal_title：Molecular biology and evolution

authors： Hammer MF,Karafet TM,Redd AJ,Jarjanazi H,Santachiara-Benerecetti S,Soodyall H,Zegura SL

更新日期：2001-07-01 00:00:00

abstract：:Complex metazoan bodies require cell-to-cell communication for development, a process often mediated by signaling molecules binding to specific receptors. Relatively few signaling pathways have been recruited during evolution to build multicellular animals from unicellular zygotes. Of these few signaling pathways, one...

journal_title：Molecular biology and evolution

authors： Bertrand S,Iwema T,Escriva H

更新日期：2014-02-01 00:00:00

abstract：:We describe a stochastic birth-and-death model of evolution of horizontally transferred genes in microbial populations. The model is a generalization of the stochastic model described by Berg and Kurland and includes five parameters: the rate of mutational inactivation, selection coefficient, invasion rate (i.e., rate...

journal_title：Molecular biology and evolution

authors： Novozhilov AS,Karev GP,Koonin EV

更新日期：2005-08-01 00:00:00

abstract：:The adaptive radiation of cichlid fishes in East African Lake Malawi encompasses over 500 species that are believed to have evolved within the last 800,000 years from a common founder population. It has been proposed that hybridization between ancestral lineages can provide the genetic raw material to fuel such except...

journal_title：Molecular biology and evolution

authors： Svardal H,Quah FX,Malinsky M,Ngatunga BP,Miska EA,Salzburger W,Genner MJ,Turner GF,Durbin R

更新日期：2020-04-01 00:00:00

abstract：:Amino acid substitution matrices describe the rates by which amino acids are replaced during evolution. In contrast to nucleotide or codon models, amino acid substitution matrices are in general parameterless and empirically estimated, probably because there is no obvious parametrization for amino acid substitutions. ...

journal_title：Molecular biology and evolution

authors： Zoller S,Schneider A

更新日期：2013-02-01 00:00:00

abstract：:Discrepancies in phylogenetic trees of bacteria and archaea are often explained as lateral gene transfer events. However, such discrepancies may also be due to phylogenetic artifacts or orthology assignment problems. A first step that may help to resolve this dilemma is to estimate the extent of phylogenetic inconsist...

journal_title：Molecular biology and evolution

authors： Soria-Carrasco V,Castresana J

更新日期：2008-11-01 00:00:00

abstract：:We present QNet, a method for constructing split networks from weighted quartet trees. QNet can be viewed as a quartet analogue of the distance-based Neighbor-Net (NNet) method for network construction. Just as NNet, QNet works by agglomeratively computing a collection of circular weighted splits of the taxa set which...

journal_title：Molecular biology and evolution

authors： Grünewald S,Forslund K,Dress A,Moulton V

更新日期：2007-02-01 00:00:00

abstract：:The evolution of DNA base composition evolution is simplified to a six-parameter model when there are no strand biases for mutation and selection. We analyzed the dynamics of this model with special attention to the influence of a change in substitution rates. The G + C content of the DNA sequence tends to an equilibr...

journal_title：Molecular biology and evolution

authors： Lobry JR,Lobry C

更新日期：1999-06-01 00:00:00

abstract：:Despite the importance of plant-plant interactions on plant community dynamics and crop yield, our understanding of the adaptive genetics underlying these interactions is still limited and deserves to be investigated in the context of complex and diffuse interactions occurring in plant assemblages. Here, based on 145 ...

journal_title：Molecular biology and evolution

authors： Frachon L,Mayjonade B,Bartoli C,Hautekèete NC,Roux F

更新日期：2019-07-01 00:00:00