Results 81 to 90 of about 14,468 (156)
Insect Science, Volume 32, Issue 6, Page 2105-2124, December 2025.Distinct lineages of the grasshopper Chorthippus parallelus (Orthoptera: Acrididae) form a well‐known hybrid zone (HZ) in the Pyrenees mountain range; the Iberian endemism C. p. erythropus (Cpe) and the subspecies C. p. parallelus, (Cpp) widely distributed throughout the rest of Europe. Both subspecies differ in diverse traits, including the strains of
Patricia Jiménez‐Florido +4 more
wiley +1 more source
Frontiers in Microbiology, 2017 Objectives: The symbiosis of Trichomonas vaginalis and Mycoplasma hominis is the first described association between two obligate human parasites. Trichomonas is the niche and the vector for the transmission of M. hominis infection.
Anastasios Ioannidis +9 more
doaj +1 more source
Metabolic constraints on the evolution of genetic codes: Did multiple 'preaerobic' ecosystem transitions entrain richer dialects via Serial Endosymbiosis? [PDF]
, 2010 A mathematical model based on Tlusty's topological deconstruction suggests that multiple punctuated ecosystem shifts in available metabolic free energy, broadly akin to the 'aerobic' transition, enabled a punctuated sequence of ...
Rodrick Wallace
core +1 more source
Which phylogenetic networks are merely trees with additional arcs? [PDF]
, 2015 A binary phylogenetic network may or may not be obtainable from a tree by the addition of directed edges (arcs) between tree arcs. Here, we establish a precise and easily tested criterion (based on `2-SAT') that efficiently determines whether or not any ...
Francis, Andrew R., Steel, Mike
core +3 more sources
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
doaj +1 more source
Origin of the Eukaryotic Cell [PDF]
, 2017 All complex life on Earth is composed of ‘eukaryotic’ cells. Eukaryotes arose just once in 4 billion years, via an endosymbiosis — bacteria entered a simple host cell, evolving into mitochondria, the ‘powerhouses’ of complex cells. Mitochondria lost most
Lane, N
core +1 more source
Frontiers in Plant Science, 2016 Cyanobacteria and chloroplasts perform oxygenic photosynthesis, and share a common origin. Galactolipids are present in the photosynthetic membranes of both cyanobacteria and chloroplasts, but the biosynthetic pathways of the galactolipids are ...
Naoki eSato +3 more
doaj +1 more source
Bacteriocyte dynamics during development of a holometabolous insect, the carpenter ant Camponotus floridanus [PDF]
, 2010 Background The carpenter ant Camponotus floridanus harbors obligate intracellular mutualistic bacteria (Blochmannia floridanus) in specialized cells, the bacteriocytes, intercalated in their midgut tissue.
Sascha Stoll +3 more
core +2 more sources
Evolution: functional evolution of nuclear structure. [PDF]
, 2011 The evolution of the nucleus, the defining feature of eukaryotic cells, was long shrouded in speculation and mystery. There is now strong evidence that nuclear pore complexes (NPCs) and nuclear membranes coevolved with the endomembrane system, and that ...
Dawson, Scott C, Wilson, Katherine L
core
PhyloSort: a user-friendly phylogenetic sorting tool and its application to estimating the cyanobacterial contribution to the nuclear genome of Chlamydomonas [PDF]
, 2008 Background Phylogenomic pipelines generate a large collection of phylogenetic trees that require manual inspection to answer questions about gene or genome evolution.
Ahmed Moustafa, Debashish Bhattacharya
core +2 more sources