Phylogenetic position of mammoth and Steller's sea cow within Tethytheria demonstrated by mitochondrial DNA sequences.

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：:Simple sequence repeats (SSRs) in DNA sequences are tandem iterations of a single nucleotide or a short oligonucleotide. SSRs are subject to slipped-strand mutations and a common source of phase variation in bacteria and antigenic variation in pathogens. Significantly long SSRs are generally rare in prokaryotic genome...

journal_title：Journal of molecular evolution

authors： Guo X,Mrázek J

更新日期：2008-11-01 00:00:00

abstract：:Analysis of the expanded data set of Sibley and Ahlquist (1987) on primate phylogeny using a maximum likelihood mixed model analysis of variance method shows that there is significant evidence for resolving the Homo-Pan-Gorilla trifurcation in favor of a Homo-Pan clade. The resulting tree is close to that estimated by...

journal_title：Journal of molecular evolution

authors： Felsenstein J

更新日期：1987-01-01 00:00:00

abstract：:The 70-kDa heat-shock protein (HSP70) constitutes the most conserved protein present in all organisms that is known to date. Based on global alignment of HSP70 sequences from organisms representing all three domains, numerous sequence signatures that are specific for prokaryotic and eukaryotic homologs have been ident...

journal_title：Journal of molecular evolution

authors： Gupta RS,Golding GB

更新日期：1993-12-01 00:00:00

abstract：:Pituitary prolactin, like growth hormone (GH) and several other protein hormones, shows an episodic pattern of molecular evolution in which sustained bursts of rapid change contrast with long periods of slow evolution. A period of rapid change occurred in the evolution of prolactin in primates, leading to marked seque...

journal_title：Journal of molecular evolution

authors： Wallis OC,Mac-Kwashie AO,Makri G,Wallis M

更新日期：2005-05-01 00:00:00

abstract：:A fundamental paradox motivates the study of plant mitochondrial genomics: the mutation rate is very low (lower than in the nucleus) but the rearrangement rate is high. A landmark paper published in Journal of Molecular Evolution in 1988 established these facts and revealed the paradox. Jeffrey Palmer and Laura Herbon...

journal_title：Journal of molecular evolution

authors： Christensen AC

更新日期：2021-01-24 00:00:00

abstract：:The usage of synonymous codons and the frequencies of amino acids were investigated in the complete genome of the bacterium Thermotoga maritima using a multivariate statistical approach. The GC3 content of each gene was the most prominent source of variation of codon usage. Surprisingly the usage of UGU and UGC (synon...

journal_title：Journal of molecular evolution

authors： Zavala A,Naya H,Romero H,Musto H

更新日期：2002-05-01 00:00:00

abstract：:A major goal of evolutionary biology is to understand how beneficial mutations translate into increased fitness. Here, we study beneficial mutations that arise in experimental populations of yeast evolved in glucose-rich media. We find that fitness increases are caused by enhanced maximum growth rate (R) that come at ...

journal_title：Journal of molecular evolution

authors： Sezmis AL,Malerba ME,Marshall DJ,McDonald MJ

更新日期：2018-02-01 00:00:00

abstract：:To get a better understanding of the effect of interelement selection on the variation of long terminal repeat retrotransposon families, we have investigated the evolutionary history of blood in the Drosophila melanogaster species complex. We carried out a PCR approach to amplify the 5' untranslated region from blood ...

journal_title：Journal of molecular evolution

authors： Costas J,Valadé E,Naveira H

更新日期：2001-04-01 00:00:00

abstract：:The organization of histone gene clusters of the duck Cairina moschata was studied in the DNA inserts of two recombinant phage that overlap and feature identical histone gene arrangements but differ in sequence details and in the extent of repetition of an AT-rich motif in one of the nontranscribed spacer regions. The...

journal_title：Journal of molecular evolution

authors： Tönjes R,Munk K,Doenecke D

更新日期：1989-03-01 00:00:00

abstract：:We have determined the genomic structure of an integrin beta-subunit gene from the coral, Acropora millepora. The coding region of the gene contains 26 introns, spaced relatively uniformly, and this is significantly more than have been found in any integrin beta-subunit genes from higher animals. Twenty-five of the 26...

journal_title：Journal of molecular evolution

authors： Schmitt DM,Brower DL

更新日期：2001-12-01 00:00:00

abstract：:Three measures of sequence dissimilarity have been compared on a computer-generated model system in which substitutions in random sequences were made at randomly selected sites and the replacement character was chosen at random from the set of characters different from the original occupant of the site. The three meas...

journal_title：Journal of molecular evolution

authors： Blaisdell BE

更新日期：1989-12-01 00:00:00

abstract：:Gamete-recognition proteins have been shown to evolve by positive selection in diverse organism groups, such as marine invertebrates and mammals, although underlying evolutionary mechanisms driving this rapid divergence are poorly understood. However, several hypotheses have been put forward to explain the observed pa...

journal_title：Journal of molecular evolution

authors： Berlin S,Qu L,Ellegren H

更新日期：2008-11-01 00:00:00

abstract：:An assay based on derivative analysis of thermal denaturation (melting) behavior of reassociated DNA was developed in an attempt to characterize the sequence relationships in repeated DNA families according to the homogeneous or heterogeneous models of Bendich and Anderson (1977). The validity of the technique was con...

journal_title：Journal of molecular evolution

authors： Preisler RS,Thompson WF

更新日期：1981-01-01 00:00:00

abstract：:Multiple genes of the hoatzin encoding stomach lysozyme c and closely related members of this calcium-binding lysozyme c group were cloned from a genomic DNA library and sequenced. There are a minimum of five genes represented among these sequences that encode two distinct groups of protein sequences. One group of thr...

journal_title：Journal of molecular evolution

authors： Kornegay JR

更新日期：1996-06-01 00:00:00

abstract：:The sequence of a cloned Anopheles stephensi gene showed 72% inferred amino acid identity with Drosophila melanogaster Dox-A2 and 93% with its putative ortholog in Anopheles gambiae. Dox-A2 is the reported but herein disputed structural locus for diphenol oxidase A2. Database searches identified Dox-A2 related gene se...

journal_title：Journal of molecular evolution

authors： Garvey CF,Malcolm CA

更新日期：2000-06-01 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：:The local stability of unbranched biosynthetic pathways is examined by mathematical analysis and computer simulation using a novel nonlinear formalism that appears to accurately describe biochemical systems. Four factors affecting the stability are examined: strength of feedback inhibition, equalization of the values...

journal_title：Journal of molecular evolution

authors： Savageau MA

更新日期：1975-08-05 00:00:00

abstract：:Universal scale of the sequence conservation has been recently introduced based on omnipresence of the protein sequence motifs across species. A large spectrum of short sequences, up to eight residues has been found to reside in all or almost all prokaryotic organisms. By this discovery a principally novel quantitativ...

journal_title：Journal of molecular evolution

authors： Sobolevsky Y,Trifonov EN

更新日期：2006-11-01 00:00:00

abstract：:The first intron of the gene encoding one of the alcohol dehydrogenase isoenzymes (ADH-1) in Ceratitis capitata is highly polymorphic in size. Five size variants of this intron were isolated from different strains and populations and characterized. Restriction map and sequence analysis showed that the intron size poly...

journal_title：Journal of molecular evolution

authors： Gomulski LM,Brogna S,Babaratsas A,Gasperi G,Zacharopoulou A,Savakis C,Bourtzis K

更新日期：2004-06-01 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：:We studied the genomic organization of Hox genes in Atlantic salmon (Salmo salar) and made comparisons to that in rainbow trout (Oncorhynchus mykiss), another member of the family Salmonidae. We used these two species to test the hypothesis that the Hox genes would provide evidence for a fourth round of duplication (4...

journal_title：Journal of molecular evolution

authors： Moghadam HK,Ferguson MM,Danzmann RG

更新日期：2005-11-01 00:00:00

abstract：:Examination of the mitochondrial small subunit ribosomal RNA (rns) gene of five species of the fungal genus Leptographium revealed that the gene has been invaded at least once at position 952 by a group II intron encoding a LAGLIDADG homing endonuclease gene. Phylogenetic analyses of the intron and homing endonuclease...

journal_title：Journal of molecular evolution

authors： Mullineux ST,Willows K,Hausner G

更新日期：2011-06-01 00:00:00

abstract：:Genes encoding the olfactory receptors of the "OR37" subfamily of the mouse are characterized by special features including a clustered expression pattern, assembly in two distinct gene clusters, and highly conserved putative promoter motifs. Mining the rat and dog databases revealed that these two species possess hig...

journal_title：Journal of molecular evolution

authors： Hoppe R,Lambert TD,Samollow PB,Breer H,Strotmann J

更新日期：2006-04-01 00:00:00

abstract：:Sequence divergence among orthologous proteins was characterized with 34 amino acid replacement matrices, sequence context analysis, and a phylogenetic tree. The model was trained on very large datasets of aligned protein sequences drawn from 15 organisms including protists, plants, Dictyostelium, fungi, and animals. ...

journal_title：Journal of molecular evolution

authors： Olsen R,Loomis WF

更新日期：2005-11-01 00:00:00

abstract：:Evaporation of a solution of thymidine plus either the exo or the endo diastereomer of uridine cyclic 2',3'-O, O-phosphorothioate (U greater than p(S) in 1,2-diaminoethane hydrochloride buffer gave the 2',5' and 3',5' isomers of (P-thio) uridylylthymidine (Up(S)dT) in a ratio of 1:2 with a combined yield of about 20%....

journal_title：Journal of molecular evolution

authors： Usher DA,Yee D

更新日期：1979-11-01 00:00:00

abstract：:This study examines the diverse maximum wavelength absorption (lambdamax) found in crayfishes (Decapoda: Cambaridae and Parastacidae) and the associated genetic variation in their opsin locus. We measured the wavelength absorption in the photoreceptors of six species that inhabit environments of different light intens...

journal_title：Journal of molecular evolution

authors： Crandall KA,Cronin TW

更新日期：1997-11-01 00:00:00

abstract：:The neutral theory of molecular evolution states that most mutations are deleterious or neutral. It results that the evolutionary rate of a given position in an alignment is a function of the level of constraint acting on this position. Inferring evolutionary rates from a set of aligned sequences is hence a powerful m...

journal_title：Journal of molecular evolution

authors： Dutheil J

更新日期：2008-09-01 00:00:00

abstract：:In the present study we focus on the nucleotide and the inferred amino acid variation occurring in humans and other primate species for mitochondrial NAD(+)-dependent succinic semialdehyde dehydrogenase, a gene recently supposed to contribute to cognitive performance in humans. We determined 2527 bp of coding, introni...

journal_title：Journal of molecular evolution

authors： Blasi P,Palmerio F,Aiello A,Rocchi M,Malaspina P,Novelletto A

更新日期：2006-07-01 00:00:00

abstract：:The gene (fus) coding for elongation factor G (EF-G) of the extremely thermophilic eubacterium Thermotoga maritima was identified and sequenced. The EF-G coding sequence (2046 bp) was found to lie in an operon-like structure between the ribosomal protein S7 gene (rpsG) and the elongation factor Tu (EF-Tu) gene (tuf). ...

journal_title：Journal of molecular evolution

authors： Tiboni O,Cantoni R,Creti R,Cammarano P,Sanangelantoni AM

更新日期：1991-08-01 00:00:00