Probable reassortment of genomic elements among elongated RNA-containing plant viruses.

abstract：:The size and diversity of bacteriophage populations require methodologies to quantitatively study the landscape of phage differences. Statistical approaches are confronted with small genome sizes forbidding significant single-phage analysis, and comparative methods analyzing full phage genomes represent an alternative...

journal_title：Journal of molecular evolution

authors： Carbone A

更新日期：2008-03-01 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：:The monotremes, the duck-billed platypus and the echidnas, are characterized by a number of unique morphological characteristics, which have led to the common belief that they represent the living survivors of an ancestral stock of mammals. Analysis of new data from the complete mitochondrial (mt) genomes of a second ...

journal_title：Journal of molecular evolution

authors： Janke A,Magnell O,Wieczorek G,Westerman M,Arnason U

更新日期：2002-01-01 00:00:00

abstract：:A long-standing hypothesis posits that morphological changes may be more likely to result from changes in regulation of gene expression than from changes in the protein coding sequences of genes. We have compared the expression pattern of the twisted gastrulation (tsg) gene among five Drosophila species: D. melanogast...

journal_title：Journal of molecular evolution

authors： Mason ED,Marsh JL

更新日期：1998-02-01 00:00:00

abstract：:In bacteria, synonymous codon usage can be considerably affected by base composition at neighboring sites. Such context-dependent biases may be caused by either selection against specific nucleotide motifs or context-dependent mutation biases. Here we consider the evolutionary conservation of context-dependent codon b...

journal_title：Journal of molecular evolution

authors： McVean GA,Hurst GD

更新日期：2000-03-01 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

abstract：:A comparison of mitochondrial DNA sequences was undertaken for two genes among orangutans from Borneo and Sumatra. The distribution of haplotypes among 42 individuals for NADH dehydrogenease subunit 3 and 39 individuals for cytochrome B was used to infer population structure. The haplotypes among all Bornean orangutan...

journal_title：Journal of molecular evolution

authors： Muir CC,Galdikas BM,Beckenbach AT

更新日期：2000-11-01 00:00:00

abstract：:The weight-averaged observed/expected dinucleotide frequencies for the sum total of the coding regions of five Toxoplasma genes were compared with the same parameters previously determined for the coding regions of 21 Plasmodium genes. In addition, codon usage in the five Toxoplasma genes was compared with that in the...

journal_title：Journal of molecular evolution

authors： Johnson AM

更新日期：1990-04-01 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：:Molecular domestication of a transposable element is defined as its functional recruitment by the host genome. To date, two independent events of molecular domestication of the P transposable element have been described: in the Drosophila obscura species group and in the Drosophila montium species subgroup. These P ne...

journal_title：Journal of molecular evolution

authors： Reiss D,Nouaud D,Ronsseray S,Anxolabéhère D

更新日期：2005-10-01 00:00:00

abstract：:We constructed a cDNA library for the beetle, Tribolium castaneum. This library was screened using a cloned amylase gene from Drosophila melanogaster as a molecular probe. Beetle amylase cDNA clones were isolated from this bank, and the nucleotide sequence was obtained for a cDNA clone with a coding capacity for 228 a...

journal_title：Journal of molecular evolution

authors： Hickey DA,Benkel BF,Boer PH,Genest Y,Abukashawa S,Ben-David G

更新日期：1987-01-01 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 recent availability of genome sequences of four different Fusarium species offers the opportunity to perform extensive comparative analyses, in particular of repeated sequences. In a recent work, the overall content of such sequences in the genomes of three phylogenetically related Fusarium species, F. graminearum...

journal_title：Journal of molecular evolution

authors： Dufresne M,Lespinet O,Daboussi MJ,Hua-Van A

更新日期：2011-10-01 00:00:00

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：:Phylogenetic relationships of nematodes, nematomorphs, kinorhynchs, priapulids, and some other major groups of invertebrates were studied by 18S rRNA gene sequencing. Kinorhynchs and priapulids form the monophyletic Cephalorhyncha clade that is the closest to the coelomate animals. When phylogenetic trees were generat...

journal_title：Journal of molecular evolution

authors： Aleshin VV,Milyutina IA,Kedrova OS,Vladychenskaya NS,Petrov NB

更新日期：1998-11-01 00:00:00

abstract：:Fish protamines are highly specialized molecules which are responsible for chromatin condensation during the last stages of spermatogenesis (spermiogenesis). However, not all fish contain protamines in their sperm nuclei; rather, there seems to be a random distribution of protamines within this group. The origin of th...

journal_title：Journal of molecular evolution

authors： Saperas N,Ausio J,Lloris D,Chiva M

更新日期：1994-09-01 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：:LINE-1 (L1) elements constitute the major family of retrotransposons in mammalian genomes. Here we report the first investigation of L1 evolution in New World monkeys (NWM). Two regions of the second open-reading frame were analyzed by two methods in three NWM species, the squirrel monkey (Saimiri sciureus), the tamar...

journal_title：Journal of molecular evolution

authors： Boissinot S,Roos C,Furano AV

更新日期：2004-01-01 00:00:00

abstract：:Here we report DNA sequences from mitochondrial cytochrome b gene segments (1,005 base pairs per species) for the extinct woolly mammoth (Mammuthus primigenius) and Steller's sea cow (Hydrodamalis gigas) and the extant Asian elephant (Elephas maximus), the Western Indian manatee (Trichechus manatus), and the hyrax (Pr...

journal_title：Journal of molecular evolution

authors： Ozawa T,Hayashi S,Mikhelson VM

更新日期：1997-04-01 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：:Ca(2+)/cation antiporter (CaCA) proteins are integral membrane proteins that transport Ca(2+) or other cations using the H(+) or Na(+) gradient generated by primary transporters. The CAX (for CAtion eXchanger) family is one of the five families that make up the CaCA superfamily. CAX genes have been found in bacteria, ...

journal_title：Journal of molecular evolution

authors： Shigaki T,Rees I,Nakhleh L,Hirschi KD

更新日期：2006-12-01 00:00:00

abstract：:Characterization of sequences homologous to the Drosophila melanogaster gypsy transposable element was carried out in Drosophila subobscura (gypsyDS). They were found to be widely distributed among natural populations of this species. From Southern blot and in situ analyses, these sequences appear to be mobile in this...

journal_title：Journal of molecular evolution

authors： Alberola TM,de Frutos R

更新日期：1993-02-01 00:00:00

abstract：:Analysis of cDNAs from Macrovipera lebetina transmediterranea (Mlt) and Echis ocellatus (Eo) venom gland libraries encoding disintegrins argued strongly for a common ancestry of the messengers of short disintegrins and those for precursors of dimeric disintegrin chains. We now report the sequence analysis of disintegr...

journal_title：Journal of molecular evolution

authors： Bazaa A,Juárez P,Marrakchi N,Bel Lasfer Z,El Ayeb M,Harrison RA,Calvete JJ,Sanz L

更新日期：2007-02-01 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：:The core histone genes of Saccharomyces cerevisiae are arranged as duplicate nonallelic sets of specifically paired genes. The identity of structural organization between the duplicated gene pairs would have its simplest evolutionary origin in the duplication of a complete locus in a single event. In such a case, the ...

journal_title：Journal of molecular evolution

authors： Smith MM

更新日期：1987-01-01 00:00:00

abstract：:The phylogenetic relationships among the major groups of amniote vertebrates remain a matter of controversy. Various alternatives for the position of the turtles have been proposed, branching off either before or after the mammals. To discover the phylogenetic position of turtles in relation to mammals and birds, we h...

journal_title：Journal of molecular evolution

authors： Caspers GJ,Reinders GJ,Leunissen JA,Wattel J,de Jong WW

更新日期：1996-05-01 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：:Variation in structure among primate hemoglobins is associated with variation in function. This supports the hypothesis that most substitutions observed among homologous proteins in different species have been fixed by natural selection because they contribute to the fitness of the genotype. It does not support the co...

journal_title：Journal of molecular evolution

authors： Sullivan B

更新日期：1972-12-01 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：:Drosophilidae is a large, widely distributed family of Diptera including 61 genera, of which Drosophila is the most representative. Drosophila feeding is part of the saprophytic trophic chain, because of its dependence upon decomposing organic matter. Many species have adapted to fermenting fruit feeding or to artific...

journal_title：Journal of molecular evolution

authors： Atrian S,Sánchez-Pulido L,Gonzàlez-Duarte R,Valencia A

更新日期：1998-08-01 00:00:00