Results 71 to 80 of about 14,667 (203)
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
Endosymbiotic organelles, such as mitochondria and plastids, contain own remnant genomes (nucleoids), whose variable abundance in cells may be adaptive to the physiological necessities and functions of the cells.
Tim Brandler +3 more
doaj +1 more source
Which phylogenetic networks are merely trees with additional arcs? [PDF]
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
Endosymbiosis and Eukaryotic Cell Evolution [PDF]
Understanding the evolution of eukaryotic cellular complexity is one of the grand challenges of modern biology. It has now been firmly established that mitochondria and plastids, the classical membrane-bound organelles of eukaryotic cells, evolved from bacteria by endosymbiosis.
openaire +2 more sources
Bacteria form an intense portion of reading and learning for students enrolled in microbiology education. As a part of the foundational course outline of bacteriology, bacterial classification is a significant topic of discussion.
Henna Iqbal, Kenneth Onyedibe
doaj +1 more source
Introductory biology courses use the hierarchy of life as an organizing framework but rarely teach how and why it evolved. We propose incorporating ETI theory into college curricula to address this gap, demonstrating how groups of cooperating individuals became new evolutionary units that make up the hierarchy of life.
SoRi La +4 more
wiley +1 more source
THE ECOLOGY OF MUTUALISM [PDF]
Elementary ecology texts tell us that organisms interact in three fundamen tal ways, generally given the names competition, predation, and mutualism. The third member has gotten short shrift (264), and even its name is not generally agreed on.
Boucher, Douglas H. +2 more
core +1 more source
Finding the Core-Genes of Chloroplasts
Due to the recent evolution of sequencing techniques, the number of available genomes is rising steadily, leading to the possibility to make large scale genomic comparison between sets of close species.
AlKindy, Bassam +5 more
core +3 more sources
Plastid establishment did not require a chlamydial partner [PDF]
Primary plastids descend from the cyanobacterial endosymbiont of an ancient eukaryotic host, but the initial selective drivers that stabilized the association between these two cells are still unclear.
Domman, Daryl +3 more
core +2 more sources
Endosymbiosis: Bacteria Sharing the Load [PDF]
A nested set of bacterial endosymbionts within mealybug cells collectively provides amino acids to their host, but their genomes show that some pathways are distributed between both endosymbionts, while other essential proteins are missing altogether.
openaire +2 more sources

