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Plastid origin: who, when and why?
Acta Societatis Botanicorum Poloniae, 2014 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 legume-specific transcription factor E1 controls leaf morphology in soybean
BMC Plant Biology, 2021 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
doaj +1 more source
Imaging the Breakdown of Molecular-Frame Dynamics through Rotational Uncoupling [PDF]
Phys. Rev. A 95, 061403 (2017), 2016 We demonstrate the breakdown of molecular-frame dynamics induced by the uncoupling of molecular rotation from electronic motion in molecular Rydberg states. We observe this non-Born-Oppenheimer regime in the time domain through photoelectron imaging of a coherent molecular Rydberg wave packet in $\textrm{N}_2$.
arxiv +1 more source
W(h)ither Fossils? Studying Morphological Character Evolution in the Age of Molecular Sequences [PDF]
, 2008 A major challenge in the post-genomics era will be to integrate molecular sequence data from extant organisms with morphological data from fossil and extant taxa into a single, coherent picture of phylogenetic relationships; only then will these ...
Bull J. J. +21 more
core +2 more sources
Integrating influenza antigenic dynamics with molecular evolution. [PDF]
, 2013 Influenza viruses undergo continual antigenic evolution allowing mutant viruses to evade host immunity acquired to previous virus strains. Antigenic phenotype is often assessed through pairwise measurement of cross-reactivity between influenza strains ...
Abed +83 more
core +4 more sources
The future of molecular evolution [PDF]
EMBO reports, 2010 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.
openaire +3 more sources
The complete mitochondrial genome of Syrphus ribesii (Diptera: Syrphoidea: Syrphidae)
Mitochondrial DNA. Part B. Resources, 2021 The complete mitochondrial genome of Syrphus ribesii was determined in this study. The double-stranded circular DNA molecule was 16,530 bp in length, containing 37 typical genes: 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes, and an A + T ...
Mengchen Chen +4 more
doaj +1 more source
The simple emergence of complex molecular function [PDF]
arXiv, 2021 At odds with a traditional view of molecular evolution that seeks a descent-with-modification relationship between functional sequences, new functions can emerge {\it de novo} with relative ease. At early times of molecular evolution, random polymers could have sufficed for the appearance of incipient chemical activity, while the cellular environment ...
arxiv
An Investigation on the Morphological Evolution of Bright-Rimmed Clouds [PDF]
Astrophys.J.692:382-401,2009, 2008 A new Radiative Driven Implosion (RDI) model based on Smoothed Particle Hydrodynamics (SPH) technique is developed and applied to investigate the morphological evolutions of molecular clouds under the effect of ionising radiation. This model self-consistently includes the self-gravity of the cloud in the hydrodynamical evolution, the UV radiation ...
arxiv +1 more source
Host-dependent impairment of parasite development and reproduction in the acanthocephalan model
Cell & Bioscience, 2022 Background A central question in parasitology is why parasites mature and reproduce in some host species but not in others. Yet, a better understanding of the inability of parasites to complete their life cycles in less suitable hosts may hold clues for ...
Hanno Schmidt +3 more
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