The family of major royal jelly proteins and its evolution.

abstract：:We examined the codon usages in well-conserved and less-well-conserved regions of vertebrate protein genes and found them to be similar. Despite this similarity, there is a statistically significant decrease in codon bias in the less-well-conserved regions. Our analysis suggests that although those codon changes initi...

journal_title：Journal of molecular evolution

authors： Lipman DJ,Wilbur WJ

更新日期：1984-01-01 00:00:00

abstract：:The mutation and selection of regulatory DNA sequences are presented as an ideal model system of molecular evolution where genotype, phenotype, and fitness can be explicitly and independently characterized. In this theoretical study, we construct an explicit model for the evolution of regulatory sequences, making use ...

journal_title：Journal of molecular evolution

authors： Gerland U,Hwa T

更新日期：2002-10-01 00:00:00

abstract：:This paper presents an essentially new method used to construct phylogenetic trees from related amino acid sequences. The method is based on a new distance measure which describes sequence relationships by means of typical steric and physicochemical properties of the amino acids and is advantageous in some essential p...

journal_title：Journal of molecular evolution

authors： Schmidt W

更新日期：1995-10-01 00:00:00

abstract：:We have studied the relative contribution of inversions, transpositions, deletions, and nucleotide substitutions to the evolution of Chlamydia trachomatis and Chlamydia pneumoniae. The minimal number of rearrangement events required for converting the gene order structure of one genome into that of the other was estim...

journal_title：Journal of molecular evolution

authors： Dalevi DA,Eriksen N,Eriksson K,Andersson SG

更新日期：2002-07-01 00:00:00

abstract：:Photosynthetic eukaryotes can, according to features of their chloroplasts, be divided into two major groups: the red and the green lineage of plastid evolution. To extend the knowledge about the evolution of the red lineage we have sequenced and analyzed the chloroplast genome (cp-genome) of Cyanidium caldarium RK1, ...

journal_title：Journal of molecular evolution

authors： Glöckner G,Rosenthal A,Valentin K

更新日期：2000-10-01 00:00:00

abstract：:Evolutionary divergence times can be inferred from molecular distances if a molecular clock can be assumed and if the substitution rate can be estimated. We present new evidence from relative rate tests that the rate of substitution at fourfold degenerate sites of nuclear genome-coding DNA is uniform in primate and ro...

journal_title：Journal of molecular evolution

authors： Easteal S,Herbert G

更新日期：1997-01-01 00:00:00

abstract：:The attachment site (attlambda) of bacteriophage lambda was examined in wild strains of Escherichia coli. Although the att region is non-coding, the DNA sequence was invariant in the 13 strains examined. Two other non-coding regions showed nine changes, all associated with a single strain. In four of 33 strains, seque...

journal_title：Journal of molecular evolution

authors： Kuhn J,Campbell A

更新日期：2001-12-01 00:00:00

abstract：:Cytochrome proteins perform a broad spectrum of biological functions ranging from oxidative metabolism to electron transport and are thus essential to all organisms. The b-type cytochrome proteins bind heme noncovalently, are expressed in many different forms and are localized to various cellular compartments. We repo...

journal_title：Journal of molecular evolution

authors： Kula ME,Allay ER,Rozek CE

更新日期：1995-10-01 00:00:00

abstract：:We investigated the molecular evolution of duplicated color vision genes (LWS-1 and SWS2) within cyprinid fish, focusing on the most cavefish-rich genus--Sinocyclocheilus. Maximum likelihood-based codon substitution approaches were used to analyze the evolution of vision genes. We found that the duplicated color visio...

journal_title：Journal of molecular evolution

authors： Li Z,Gan X,He S

更新日期：2009-10-01 00:00:00

abstract：:Abortive cycling features transcription initiation by RNA polymerase in both prokaryote and eukaryote. It is known that T7 RNA polymerase produces abortive transcripts up to eight ribonucleotides in length depending on the initial sequence of the DNA message. On the other hand, T7 RNA polymerase initiates DNA replicat...

journal_title：Journal of molecular evolution

authors： Matsumoto J

更新日期：1994-12-01 00:00:00

abstract：:Fimbrial adhesins allow bacteria to interact with and attach to their environment. The bacteria possibly benefit from these interactions, but all external structures including adhesins also allow bacteria to be identified by other organisms. Thus adhesion molecules might be under multiple forms of selection including ...

journal_title：Journal of molecular evolution

authors： Peek AS,Souza V,Eguiarte LE,Gaut BS

更新日期：2001-02-01 00:00:00

abstract：:The simple codominant expression of the alleles at the self-incompatibility locus ( S) of Solanaceae and their extraordinary spectrum of sequence diversity present an ideal case for understanding the molecular forces that shape the sequence polymorphism of genes involved in recognition reactions. Here, with unpreceden...

journal_title：Journal of molecular evolution

authors： Lu Y

更新日期：2002-06-01 00:00:00

abstract：:RNA editing affecting chloroplast and mitochondrial genomes has been identified in all major clades of land plants. The frequency of edited sites varies greatly between lineages but hornworts represent an extreme in propensity for editing in both their chloroplast and mitochondrial genomes. cDNA sequences from seven t...

journal_title：Journal of molecular evolution

authors： Duff RJ,Moore FB

更新日期：2005-11-01 00:00:00

abstract：:Mitochondrial small-subunit (19S) rDNA sequences were obtained from 10 angiosperms to further characterize sequence divergence levels and structural variation in this molecule. These sequences were derived from seven holoparasitic (nonphotosynthetic) angiosperms as well as three photosynthetic plants. 19S rRNA is comp...

journal_title：Journal of molecular evolution

authors： Duff RJ,Nickrent DL

更新日期：1997-12-01 00:00:00

abstract：:Parsimony is commonly used to infer the direction of substitution and mutation. However, it is known that parsimony is biased when the base composition of the DNA sequence is skewed. Here I quantify this effect for several simple cases. The analysis demonstrates that parsimony can be misleading even when levels of seq...

journal_title：Journal of molecular evolution

authors： Eyre-Walker A

更新日期：1998-12-01 00:00:00

abstract：:The symbiotic protists of the lower termite have been regarded as a model of early-branched eukaryotes because of their simple cellular systems and morphological features. However, cultivation of these symbiotic protists is very difficult. For this reason, these interesting protists have not been well characterized in...

journal_title：Journal of molecular evolution

authors： Moriya S,Tanaka K,Ohkuma M,Sugano S,Kudo T

更新日期：2001-01-01 00:00:00

abstract：:The kinetics of synonymous codon change and species divergence is described in a matrix formalism that is equally applicable to all levels of codon degeneracy and all levels of codon or nucleotide bias. Based on the formalism it is possible to calculate the sum of all synonymous substitution rate constants from the ob...

journal_title：Journal of molecular evolution

authors： Berg OG

更新日期：1995-09-01 00:00:00

abstract：:Oxygen-free aqueous solutions of NH4CN (0.1 M, pH9) were exposed to gamma rays from a 60Co source, the mixture of nonvolatile products was fractionated, and the fractions were analyzed. The procedures were chosen to make effective investigations of radiolytic products, and to minimize the contributions of chemical cha...

journal_title：Journal of molecular evolution

authors： Draganić ZD,Niketić V,Jovanović S,Draganić IG

更新日期：1980-07-01 00:00:00

abstract：:The bacterial endosymbionts (Buchnera) from the aphids Rhopalosiphum padi, R. maidis, Schizaphis graminum, and Acyrthosiphon pisum contain the genes for anthranilate synthase (trpEG) on plasmids made up of one or more 3.6-kb units. Anthranilate synthase is the first as well as the rate-limiting enzyme in the tryptopha...

journal_title：Journal of molecular evolution

authors： Rouhbakhsh D,Lai CY,von Dohlen CD,Clark MA,Baumann L,Baumann P,Moran NA,Voegtlin DJ

更新日期：1996-04-01 00:00:00

abstract：:Computer analyses of various genome sequences revealed the existence of certain periodical patterns of adenine-adenine dinucleotides (ApA). For each genome sequence of 13 eubacteria, 3 archaebacteria, 10 eukaryotes, 60 mitochondria, and 9 chloroplasts, we counted frequencies of ApA dinucleotides at each downstream pos...

journal_title：Journal of molecular evolution

authors： Tomita M,Wada M,Kawashima Y

更新日期：1999-08-01 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：:Throughout history, remote archipelagos have repeatedly been designated natural laboratories to study evolutionary processes. The extensive, geographically structured, morphological variation within Galápagos' Opuntia cacti has been presumed to be another example of how such processes shape diversity. However, recent ...

journal_title：Journal of molecular evolution

authors： Helsen P,Verdyck P,Van Dongen S

更新日期：2011-03-01 00:00:00

abstract：:We have sequenced the nuclear and mitochondrial small subunit rRNA genes (rns) and the mitochondrial genes coding for subunits 1 and 3 of the cytochrome oxidase (cox1 and cox3, respectively) of the chytridiomycete Allomyces macrogynus. Phylogenetic trees inferred from the derived COX1 and COX3 proteins and the nuclear...

journal_title：Journal of molecular evolution

authors： Paquin B,Forget L,Roewer I,Lang BF

更新日期：1995-11-01 00:00:00

abstract：:A new type of repeat unit was isolated from Balbiani ring 1 of Chironomus pallidivittatus and designated BR1 beta repeat. It consists of a constant and a subrepeated part, like previously described units belonging to the core blocks of the BR genes. The subrepeated part contains 10-codon subrepeats with an arrangement...

journal_title：Journal of molecular evolution

authors： Saiga H,Botella L,Edström JE

更新日期：1988-01-01 00:00:00

abstract：:Energised by the protonmotive force and with the intervention of inorganic catalysts, at base Life reacts hydrogen from a variety of sources with atmospheric carbon dioxide. It seems inescapable that life emerged to fulfil the same role (i.e., to hydrogenate CO(2)) on the early Earth, thus outcompeting the slow geoche...

journal_title：Journal of molecular evolution

authors： Nitschke W,Russell MJ

更新日期：2009-11-01 00:00:00

abstract：:We present sequences of five novel RNase A superfamily ribonuclease genes of the bullfrog, Rana catesbeiana. All five genes encode ribonucleases that are similar to Onconase, a cytotoxic ribonuclease isolated from oocytes of R. pipiens. With amino acid sequence data from 14 ribonucleases from three Rana species (R. ca...

journal_title：Journal of molecular evolution

authors： Rosenberg HF,Zhang J,Liao YD,Dyer KD

更新日期：2001-07-01 00:00:00

abstract：:This paper constructs a temporal scale for bacterial evolution by tying ecological events that took place at known times in the geological past to specific branch points in the genealogical tree relating the 16S ribosomal RNAs of eubacteria, mitochondria, and chloroplasts. One thus obtains a relationship between time ...

journal_title：Journal of molecular evolution

authors： Ochman H,Wilson AC

更新日期：1987-01-01 00:00:00

abstract：:Horizontal gene transfer (HGT) has a major impact on the evolution of prokaryotic genomes, as it allows genes evolved in different contexts to be combined in a single genome, greatly enhancing the ways evolving organisms can explore the gene content space and adapt to the environment. A systematic analysis of HGT in a...

journal_title：Journal of molecular evolution

authors： Paquola ACM,Asif H,Pereira CAB,Feltes BC,Bonatto D,Lima WC,Menck CFM

更新日期：2018-04-01 00:00:00

abstract：:Comparisons of the amino acid compositions of the nitrogenase proteins from different organisms and their correlation with cross-reactivities and taxonomical data suggest an evolution within bacterial genomes rather than within plasmids. Comparisons of the amino acid compositions of nitrogenases and other ATP-ases sho...

journal_title：Journal of molecular evolution

authors： Kleiner D,Littke W,Bender H,Wallenfels K

更新日期：1976-03-29 00:00:00

abstract：:Heat induces a number of premutational lesions (for example, the deamination of cytosine to uracil) in DNA and RNA. These kinds of errors occur in resting as well as replicating polynucleotides. However, an increase in temperature also raises the probability of copying error occurring in nucleic acids because of incre...

journal_title：Journal of molecular evolution

authors： Reanney DC,Pressing J

更新日期：1984-01-01 00:00:00