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Loss of Plastid Developmental Genes Coincides With a Reversion to Monoplastidy in Hornworts
The first plastid evolved from an endosymbiotic cyanobacterium in the common ancestor of the Archaeplastida. The transformative steps from cyanobacterium to organelle included the transfer of control over developmental processes, a necessity for the host
Alexander I. MacLeod +5 more
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THE MOLECULAR EVOLUTION OF ACTIN [PDF]
ABSTRACT We have investigated the molecular evolution of plant and nonplant actin genes comparing nucleotide and amino acid sequences of 20 actin genes. Nucleotide changes resulting in amino acid substitutions (replacement substitutions) ranged from 3-7% for all pairwise comparisons of animal actin genes with the following exceptions ...
R C, Hightower, R B, Meagher
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DNA Polymerases Engineered by Directed Evolution to Incorporate Nonstandard Nucleotides
DNA polymerases have evolved for billions of years to accept natural nucleoside triphosphate substrates with high fidelity and to exclude closely related structures, such as the analogous ribonucleoside triphosphates. However, polymerases that can accept
Roberto eLaos +2 more
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Major Changes in Plastid Protein Import and the Origin of the Chloroplastida
Summary: Core components of plastid protein import and the principle of using N-terminal targeting sequences are conserved across the Archaeplastida, but lineage-specific differences exist.
Michael Knopp +3 more
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It has been demonstrated that the englacial ecosystem in volcanic environments is inhabited by active bacteria. To know whether this result could be extrapolated to other Antarctic glaciers and to study the populations of microeukaryotes in addition to ...
Eva García-Lopez +6 more
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Elusive data underlying debate at the prokaryote-eukaryote divide
Background The origin of eukaryotic cells was an important transition in evolution. The factors underlying the origin and evolutionary success of the eukaryote lineage are still discussed.
Marie Gerlitz +4 more
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Molecular Phylogenetics and Mitochondrial Evolution [PDF]
The myth of a “typical” mitochondrial genome (mtDNA) is a rock-hard belief in the field of genetics, at least for the animal kingdom [...]
Luchetti A., Plazzi F.
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Plastid origin: who, when and why?
The origin of plastids is best explained by endosymbiotic theory, which dates back to the early 1900s. Three lines of evidence based on protein import machineries and molecular phylogenies of eukaryote (host) and cyanobacterial (endosymbiont) genes point
Chuan Ku +5 more
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The future of molecular evolution [PDF]
Antony Dean explores the past, present and future of evolutionary theory and our continuing efforts to explain biological patterns in terms of molecular processes and mechanisms.
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The legume-specific transcription factor E1 controls leaf morphology in soybean
Background The leaf is a determinate organ essential for photosynthesis, whose size and shape determine plant architecture and strongly affect agronomic traits. In soybean, the molecular mechanism of leaf development is not well understood. The flowering
Yongli Li +17 more
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