Length polymorphism in the threonine-glycine-encoding repeat region of the period gene in Drosophila.

abstract：:All complete retrovirus sequences in the GenEMBL database were examined with the goal of assessing possible relationships between the nucleotide composition of retroviral genomes, the amino acid composition of retroviral proteins, and evolutionary strategies used by retroviruses. The results demonstrated that the geno...

journal_title：Journal of molecular evolution

authors： Bronson EC,Anderson JN

更新日期：1994-05-01 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：:The beta-globin gene cluster of Wistar rat was extensively cloned and the embryonic genes were mapped and sequenced. Four overlapping lambda Dash recombinant clones cover about 31 kb and contain four nonadult beta-globin genes, 5'-epsilon1-gamma1-gamma2-psigamma3-3'. The epsilon1 and gamma2 are active genes, since the...

journal_title：Journal of molecular evolution

authors： Satoh H,Inokuchi N,Nagae Y,Okazaki T

更新日期：1999-07-01 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：:The internal transcribed spacer region (ITS) of the nuclear rDNA cistron represents the barcoding locus for Fungi. Intragenomic variation of this multicopy gene can interfere with accurate phylogenetic reconstruction of biological entities. We investigated the amount and nature of this variation for the lichenized fun...

journal_title：Journal of molecular evolution

authors： Lücking R,Lawrey JD,Gillevet PM,Sikaroodi M,Dal-Forno M,Berger SA

更新日期：2014-02-01 00:00:00

abstract：:In the previous three reports in this series we demonstrated that the EF-hand family of proteins evolved by a complex pattern of gene duplication, transposition, and splicing. The dendrograms based on exon sequences are nearly identical to those based on protein sequences for troponin C, the essential light chain myos...

journal_title：Journal of molecular evolution

authors： Kretsinger RH,Nakayama S

更新日期：1993-05-01 00:00:00

abstract：:Cot and chemical analysis show that the haploid genome size of Thermobia domestica is 3-4x10(9) nucleotide pairs. Of this DNA 33% is single copy sequences and 67% is repetitive sequences. The repetitive sequences are predominantly 300 nucleotides in length and are interspersed among the single copy sequences in a shor...

journal_title：Journal of molecular evolution

authors： French CK,Manning JE

更新日期：1980-08-01 00:00:00

abstract：:This study dealt with the ability of non-denaturing gel electrophoresis to separate iso-1-cytochrome c with single amino acid replacements isolated from revertants of various cyc1 nonsense mutants of the yeast Saccharomyces cerevisiae. A total of 28 different iso-1-cytochromes c with single amino acid substitutions of...

journal_title：Journal of molecular evolution

authors： McLellan T,Sherman F

更新日期：1991-10-01 00:00:00

abstract：:Synechococcus and Prochlorococcus have made great contributions to earth's photosynthetic biomass. ATP-binding cassette (ABC) protein systems have been characterized to play important roles in various physiological functions, including carbon fixation, phosphate assimilation, and vitamin B(12) metabolism. In this stud...

journal_title：Journal of molecular evolution

authors： Bu L,Xiao J,Lu L,Xu G,Li J,Zhao F,Li X,Wu J

更新日期：2009-10-01 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：:Exon-shuffling is an important mechanism accounting for the origin of many new proteins in eukaryotes. However, its role in the creation of proteins in the ancestor of prokaryotes and eukaryotes is still debatable. Excess of symmetric exons is thought to represent evidence for exon-shuffling since the exchange of exon...

journal_title：Journal of molecular evolution

authors： Vibranovski MD,Sakabe NJ,de Oliveira RS,de Souza SJ

更新日期：2005-09-01 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：:The mitochondrial cytochrome b (cyt-b) gene is widely used in systematic studies to resolve divergences at many taxonomic levels. The present study focuses mainly on the utility of cyt-b as a molecular marker for inferring phylogenetic relationship at various levels within the fish family Cichlidae. A total of 78 taxa...

journal_title：Journal of molecular evolution

authors： Farias IP,Ortí G,Sampaio I,Schneider H,Meyer A

更新日期：2001-08-01 00:00:00

abstract：:Bacterial family C DNA polymerases (DNA pol IIIs), the major chromosomal replicative enzymes, have been provisionally classified based on primary sequences and domain structures into three classes: class I (Escherichia coli DNA pol C-type), class II (Bacillus subtilis DNA pol C-type), and class III (cyanobacterial DNA...

journal_title：Journal of molecular evolution

authors： Huang YP,Ito J

更新日期：1999-06-01 00:00:00

abstract：:Using all currently predicted coding regions in the honeybee genome, a novel form of synonymous codon bias is presented that affects the usage of particular codons dependent on the surrounding nucleotides in the coding region. Nucleotides at the third codon site are correlated, dependent on their weak (adenine [A] or ...

journal_title：Journal of molecular evolution

authors： Cutler RW,Chantawannakul P

更新日期：2007-06-01 00:00:00

abstract：:Introns are generally believed to evolve too rapidly and too erratically to be of much use in phylogenetic reconstructions. Few phylogenetically informative intron sequences are available, however, to ascertain the validity of this supposition. In the present study the supposition was tested on the example of the mamm...

journal_title：Journal of molecular evolution

authors： Kupfermann H,Satta Y,Takahata N,Tichy H,Klein J

更新日期：1999-06-01 00:00:00

abstract：:Lepidoptera (comprised of butterflies and moths) is one of the largest groups of insects, including more than 160,000 described species. Chemoreception plays important roles in the adaptation of these species to a wide range of niches, e.g., plant hosts, egg-laying sites, and mates. This study investigated the molecul...

journal_title：Journal of molecular evolution

authors： Engsontia P,Sangket U,Chotigeat W,Satasook C

更新日期：2014-08-01 00:00:00

abstract：:A common polymorphism of the early embryonic histone-gene repeat of Strongylocentrotus purpuratus is a 195-bp insertion within the H4-H2B spacer. The sequence, found as an insert in histone-gene repeats of 6 of 22 individuals screened, is also found at approximately 50 sites elsewhere in the genome of every individual...

journal_title：Journal of molecular evolution

authors： Yager LN,Kaumeyer JF,Lee I,Weinberg ES

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：:A problem with studying evolutionary dynamics of mitochondrial (mt) DNA is that classical population genetic techniques cannot identify selected substitutions because of genetic hitchhiking. We circumvented this problem by employing a candidate complex approach to study sequence variation in cytochrome c oxidase (COX)...

journal_title：Journal of molecular evolution

authors： Melvin RG,Katewa SD,Ballard JW

更新日期：2008-03-01 00:00:00

abstract：:Pax genes encode transcription factors critical for metazoan development. Large-scale gene duplication with subsequent gene losses during vertebrate evolution has resulted in two human genes for each of the Pax1/9, Pax3/7, and Pax4/6 subfamilies and three for the Pax2/5/8 subfamily, compared to one each in the cephalo...

journal_title：Journal of molecular evolution

authors： Short S,Holland LZ

更新日期：2008-06-01 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：:Quantitative immunological comparisons of three avian proteins, transferrin, ovalbumin, and penalbumin, indicate that penguins are phylogenetically most closely related to loons, albatrosses, herons, and grebes. These data support the theory that the ancestors of penguins were flying oceanic birds and that flightlessn...

journal_title：Journal of molecular evolution

authors： Ho CY,Prager EM,Wilson AC,Osuga DT,Feeney RE

更新日期：1976-10-27 00:00:00

abstract：:We report the sequence of A/B.L1, a tightly linked pair of genes from the A and B chorion families in Bombyx mori. Comparison with the previously characterized A/B.L11 and A/B.L12 pairs from the same species reveals moderate sequence divergence, which is clearly nonuniform. Although the average divergence of A/B.L12 f...

journal_title：Journal of molecular evolution

authors： Tsitilou SG,Kafatos FC

更新日期：1989-11-01 00:00:00

abstract：:Statistical and biochemical studies of the genetic code have found evidence of nonrandom patterns in the distribution of codon assignments. It has, for example, been shown that the code minimizes the effects of point mutation or mistranslation: erroneous codons are either synonymous or code for an amino acid with chem...

journal_title：Journal of molecular evolution

authors： Freeland SJ,Hurst LD

更新日期：1998-09-01 00:00:00

abstract：:Microsporidia are unicellular eukaryotes living as obligate intracellular parasites. Lacking mitochondria, they were initially considered as having diverged before the endosymbiosis at the origin of mitochondria. That microsporidia were primitively amitochondriate was first questioned by the discovery of microsporidia...

journal_title：Journal of molecular evolution

authors： Thomarat F,Vivarès CP,Gouy M

更新日期：2004-12-01 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：:We recently sequenced the genome of the first subterrestrial metazoan, the nematode Halicephalobus mephisto. A central finding was a dramatic expansion of genes encoding avrRpt2 induced gene (AIG1), and 70 kDa heat shock (Hsp70) domains. While the role of Hsp70 in thermotolerance is well established, the contribution ...

journal_title：Journal of molecular evolution

authors： Guerin MN,Weinstein DJ,Bracht JR

更新日期：2019-12-01 00:00:00

abstract：:51 polypeptides of known 3-dimensional structures have been submitted to a search for internal similarities. It is shown that the frequency of proteins displaying significant amounts of internal similarities is higher than predicted by chance. A non-negligible part of those similarities probably occurs in connection w...

journal_title：Journal of molecular evolution

authors： Wuilmart C,Delhaise P

更新日期：1983-01-01 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