Variation in constraint versus positive selection as an explanation for evolutionary rate variation among anthocyanin genes.

abstract：:Hypoxia at deep-sea hydrothermal vents represents one of the most basic challenges for metazoans, which then requires specific adaptations to acquire oxygen to meet their metabolic needs. Hydrothermal vent scale-worms (Polychaeta; Polynoidae) express large amounts of extracellular single- and multi-domain hemoglobins,...

journal_title：Journal of molecular evolution

authors： Projecto-Garcia J,Le Port AS,Govindji T,Jollivet D,Schaeffer SW,Hourdez S

更新日期：2017-12-01 00:00:00

abstract：:Liverworts are well supported as the sister group to all other land plants (embryophytes) by molecular data. Observations strongly supporting this earliest dichotomy in embryophyte evolution are the strikingly different introns occurring in the mitochondrial DNAs of liverworts versus non-liverwort embryophytes (NLE), ...

journal_title：Journal of molecular evolution

authors： Volkmar U,Knoop V

更新日期：2010-05-01 00:00:00

abstract：:The complete or partial sequences of 47 E. coli ribosomal proteins described in the literature have been examined by computerized search and matching programs. In contrast to results previously reported by other investigators, sequence homologies were uncovered among some of these ribosomal proteins that are well beyo...

journal_title：Journal of molecular evolution

authors： Jue RA,Woodbury NW,Doolittle RF

更新日期：1980-05-01 00:00:00

abstract：:The PIGSFEAST (PF) exon of the Drosophila dumpy gene is undergoing concerted evolution by the process of unequal crossing over. We have developed a long-range PCR-based assay to amplify the approximately 12 kb long exon which contains variable numbers of 303 or 306 nt long repeats in a tandem array. We applied this pr...

journal_title：Journal of molecular evolution

authors： Carmon A,Larson M,Wayne M,MacIntyre R

更新日期：2010-03-01 00:00:00

abstract：:Alu elements are not distributed homogeneously throughout the human genome: old elements are preferentially found in the GC-rich parts of the genome, while young Alus are more often found in the GC-poor parts of the genome. The process giving rise to this differential distribution remains poorly understood. Here we in...

journal_title：Journal of molecular evolution

authors： Belle EM,Webster MT,Eyre-Walker A

更新日期：2005-03-01 00:00:00

abstract：:Skin pigmentation is a complex, conspicuous, highly variable human trait that exhibits a remarkable correlation with latitude. The evolutionary history and genetic basis of skin color variation has been the subject of intense research in the last years. This article reviews the major hypotheses explaining skin color d...

journal_title：Journal of molecular evolution

authors： Rocha J

更新日期：2020-01-01 00:00:00

abstract：:The C-terminal domain of methionyl-tRNA synthetase (MetRS-C) from Nanoarchaeum equitans is homologous to a tRNA-binding protein consisting of 111 amino acids (Trbp111) from Aquifex aeolicus. The crystal structure of MetRS-C showed that it existed as a homodimer, and that each monomer possessed an oligonucleotide/oligo...

journal_title：Journal of molecular evolution

authors： Suzuki H,Kaneko A,Yamamoto T,Nambo M,Hirasawa I,Umehara T,Yoshida H,Park SY,Tamura K

更新日期：2017-06-01 00:00:00

abstract：:Eight new examples of retrotransposons of the Gypsy/Ty3 class have been identified in marine species. A 525-nt pol gene-coding region was amplified using degenerate primers from highly conserved regions and has extended the range of recognition of Gypsy/Ty3 far beyond those previously known. The following matrix shows...

journal_title：Journal of molecular evolution

authors： Britten RJ,McCormack TJ,Mears TL,Davidson EH

更新日期：1995-01-01 00:00:00

abstract：:An exhaustive computer-assisted analysis of the Moloney murine leukemia virus nucleotide sequence shows numerous deviations in the oligomeric distribution, suggesting three overlapping levels of a stepwise duplicative evolution. (1) The sequence fits the universal rule of TG/CT excess which has been proposed as the co...

journal_title：Journal of molecular evolution

authors： Laprevotte I

更新日期：1992-11-01 00:00:00

abstract：:Soluble lead salts and a number of lead-containing minerals catalyze the formation of oligonucleotides from nucleoside 5'-phosphorimidazolides. The effectiveness of lead compounds correlates strongly with their solubility. Under optimal conditions we were able to obtain 18% of pentamer and higher oligomers from ImpA. ...

journal_title：Journal of molecular evolution

authors： Sleeper HL,Orgel LE

更新日期：1979-04-12 00:00:00

abstract：:A few years ago we presented a stationary Markov model of gene evolution according to which only homologous genes from not too divergent species obeying the condition of being stationary may behave as reliable molecular clocks. A compartmentalized model of the nuclear genome in which the genes are distributed in compa...

journal_title：Journal of molecular evolution

authors： Saccone C,Pesole G,Preparata G

更新日期：1989-11-01 00:00:00

abstract：:To understand the process and mechanism of protein evolution, it is important to know what types of amino acid substitutions are more likely to be under selection and what types are mostly neutral. An amino acid substitution can be classified as either conservative or radical, depending on whether it involves a change...

journal_title：Journal of molecular evolution

authors： Zhang J

更新日期：2000-01-01 00:00:00

abstract：:A 6.0-kb DNA fragment from Gorilla gorilla including the 5' part of the beta-globin gene and about 4.5 kb of its upstream flanking region was cloned and sequenced. The sequence was compared to the human, chimpanzee, and macaque delta-beta intergenic region. This analysis reveals four tandemly repeated sequences (RS), ...

journal_title：Journal of molecular evolution

authors： Perrin-Pecontal P,Gouy M,Nigon VM,Trabuchet G

更新日期：1992-01-01 00:00:00

abstract：:The nucleotide sequences of 5S rRNAs from three protozoa, Bresslaua vorax, Euplotes woodruffi and Chlamydomonas sp. have been determined and aligned together with the sequences of 12 protozoa species including unicellular green algae already reported by the authors and others. Using this alignment, a phylogenic tree o...

journal_title：Journal of molecular evolution

authors： Kumazaki T,Hori H,Osawa S

更新日期：1983-01-01 00:00:00

abstract：:Molluscan shells are composed of calcium carbonates, with small amounts of extracellular matrices secreted from mantle epithelial cells. Many types of shell matrix proteins (SMPs) have been identified from molluscan shells or mantle cells. The pen shell Atrina pectinata (Pinnidae) has two different shell microstructur...

journal_title：Journal of molecular evolution

authors： Shimizu K,Kintsu H,Awaji M,Matumoto T,Suzuki M

更新日期：2020-12-01 00:00:00

abstract：:Orphan genes, lacking detectable homologs in outgroup species, typically represent 10-30% of eukaryotic genomes. Efforts to find the source of these young genes indicate that de novo emergence from non-coding DNA may in part explain their prevalence. Here, we investigate the roots of orphan gene emergence in the Droso...

journal_title：Journal of molecular evolution

authors： Heames B,Schmitz J,Bornberg-Bauer E

更新日期：2020-05-01 00:00:00

abstract：:Complement control proteins (CCPs) contain repeated protein domains, short consensus repeats (SCRs), which must be relevant to diverse functions such as complement activation, coagulation, viral binding, fetal implantation, and self-nonself recognition. Although SCRs share some discontinuous and imperfect motifs, ther...

journal_title：Journal of molecular evolution

authors： McLure CA,Dawkins RL,Williamson JF,Davies RA,Berry J,Natalie LJ,Laird R,Gaudieri S

更新日期：2004-08-01 00:00:00

abstract：:Unravelling gene structure requires the identification and understanding of the constraints that are often associated with the evolutionary history and functional domains of genes. We speculated in this manuscript with the possibility of the existence in orthologs of an emergent highly conserved gene structure that mi...

journal_title：Journal of molecular evolution

authors： Fuertes MA,Rodrigo JR,Alonso C

更新日期：2019-04-01 00:00:00

abstract：:Ornithine decarboxylase (ODC) is the first enzyme in the polyamine biosynthetic pathway. We have studied the evolutionary history of the mammalian ODC mRNA, focusing on the rate of accumulation of sequence divergence within specific subregions of the molecule. The phylogenetic relationships among the mRNAs from severa...

journal_title：Journal of molecular evolution

authors： Johannes GJ,Berger FG

更新日期：1993-06-01 00:00:00

abstract：:Langley and Fitch (1974, 1976) have shown that the pattern of nucleotide substitutions in proteins is inconsistent with a Poisson process with constant rate. From this they conclude that the rate is temporally heterogeneous. It is pointed out in this note that a process which is temporally homogeneous but not a Poisso...

journal_title：Journal of molecular evolution

authors： Gillespie JH,Langley CH

更新日期：1979-06-08 00:00:00

abstract：:By a chromosome walking strategy the DNA region from Methanococcus vannielii flanking the genes for protein synthesis elongation factor (EF) 1 alpha and EF-2 was cloned and sequenced. A gene organization of 5' - beta' - open reading frame (ORF) 1 - ORF2 - S12 - S7 - EF-2 - EF-1 alpha - S10 - ORF3 - ORF4 - 3' was found...

journal_title：Journal of molecular evolution

authors： Lechner K,Heller G,Böck A

更新日期：1989-07-01 00:00:00

abstract：:Gene duplication by retrotransposition duplicates only the coding and untranslated regions of a gene and, thus, biases retroduplicated genes toward having different expression patterns from their parental genes. As such, genes duplicated by retrotransposition are more likely to develop novel expression domains. To exp...

journal_title：Journal of molecular evolution

authors： Penney J,Bossé J,Clark DV

更新日期：2008-05-01 00:00:00

abstract：:The evolution rates of mtDNA in early metazoans hold important implications for DNA barcoding. Here, we present a comprehensive analysis of intra- and interspecific COI variabilities in Porifera and Cnidaria (separately as Anthozoa, Hydrozoa, and Scyphozoa) using a data set of 619 sequences from 224 species. We found ...

journal_title：Journal of molecular evolution

authors： Huang D,Meier R,Todd PA,Chou LM

更新日期：2008-02-01 00:00:00

abstract：:Evidence from a number of studies indicates that protein folding is dictated not only by factors stabilizing the native state, but also by potentially independent factors that create folding pathways. How natural selection might cope simultaneously with two independent factors was addressed in this study within the fr...

journal_title：Journal of molecular evolution

authors： Lee SY,Parker W

更新日期：2011-10-01 00:00:00

abstract：:Small heat shock proteins (sHSPs), as one subclass of molecular chaperones, are important for cells to protect proteins under stress conditions. Unlike the large HSPs (represented by Hsp60 and Hsp70), sHSPs are highly divergent in both primary sequences and oligomeric status, with their evolutionary relationships bein...

journal_title：Journal of molecular evolution

authors： Fu X,Jiao W,Chang Z

更新日期：2006-03-01 00:00:00

abstract：:The activated dimonophosphate of 3'-deoxyadenosine (cordycepin) undergoes oligomerization to produce a new family of pyrophosphate-linked oligomers in which the average repeating unit involves a nine-atom structural group. The presence of a poly(U) template increases the relative yields of higher oligomers, although t...

journal_title：Journal of molecular evolution

authors： Visscher J,Schwartz AW

更新日期：1987-01-01 00:00:00

abstract：:The periodic protein collagen is of special interest for the study of the relationship which exists between the structure of a protein and that of its mRNA, because oligopeptides containing glycine, proline (hydroxyproline) and alanine occur with great frequency in it. Collagen is particularly rich in these amino acid...

journal_title：Journal of molecular evolution

authors： Bachra BN

更新日期：1976-08-03 00:00:00

abstract：:Darwinian theory requires that mutations be produced in a nonanticipatory manner; it is nonetheless consistent to suggest that mutations that have repeatedly led to nonviable phenotypes would be introduced less frequently than others-if under appropriate genetic control. Immunoglobulins produced during infection acqui...

journal_title：Journal of molecular evolution

authors： Cowell LG,Kim HJ,Humaljoki T,Berek C,Kepler TB

更新日期：1999-07-01 00:00:00

abstract：:The gene content of a mitochondrial (mt) genome, i.e., 37 genes and a large noncoding region (LNR), is usually conserved in Metazoa. The arrangement of these genes and the LNR is generally conserved at low taxonomic levels but varies substantially at high levels. We report here a variation in mt gene content and gene ...

journal_title：Journal of molecular evolution

authors： Shao R,Barker SC,Mitani H,Takahashi M,Fukunaga M

更新日期：2006-08-01 00:00:00

abstract：:The possibility of surface catalysed condensation of unsubstituted amino acids on kaolinite in aqueous systems at elevated temperatures was investigated; no evidence of clay catalysed polycondensation has been found. The thermodynamic feasibility of the hypothetical lysine/dilysine condensation reaction in the tempera...

journal_title：Journal of molecular evolution

authors： Flegmann AW,Scholefield D

更新日期：1978-12-29 00:00:00