Results 61 to 70 of about 151,608 (253)

Crop domestication as a step toward reproductive isolation

American Journal of Botany, 2023
Speciation, Darwin’s mystery of mysteries, is a continuous process that results in genomic divergence accompanied by the gradual increment of reproductive barriers between lineages. Since the beginning of research on the genetics of speciation, several questions have emerged such as: What are the genetic bases of incompatibilities?
Maud I. Tenaillon, Ewen Burban, Stella Huynh, Arthur Wojcik, Anne‐Céline Thuillet, Domenica Manicacci, Pierre R. Gérard, Karine Alix, Harry Belcram, Amandine Cornille, Marie Brault, Rebecca Stevens, Jacques Lagnel, Catherine Dogimont, Yves Vigouroux, Sylvain Glémin   +15 more
openaire   +3 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

New species based on the biological species concept within the complex of Lariophagus distinguendus (Hymenoptera, Chalcidoidea, Pteromalidae), a parasitoid of household pests

Ecology and Evolution, 2023
The pteromalid parasitoid Lariophagus distinguendus (Foerster) belongs to the Hymenoptera, a megadiverse insect order with high cryptic diversity. It attacks stored product pest beetles in human storage facilities.
Marie Pollmann, Denise Kuhn, Christian König, Irmela Homolka, Sina Paschke, Ronja Reinisch, Anna Schmidt, Noa Schwabe, Justus Weber, Yuval Gottlieb, Johannes Luitpold Maria Steidle   +10 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Divergent dynamics of sexual and habitat isolation at the transition between stick insect populations and species

Nature Communications
Speciation is often viewed as a continuum along which populations diverge until they become reproductively-isolated species. However, such divergence may be heterogeneous, proceeding in fits and bursts, rather than being uniform and gradual.
Patrik Nosil, Zachariah Gompert, Daniel J. Funk   +2 more
doaj   +1 more source

Gut microbiomes and reproductive isolation in Drosophila [PDF]

Proceedings of the National Academy of Sciences, 2017
Significance The evolutionary significance of assortative mating by diet, mediated by gut bacteria is a puzzle, but it has had a huge impact and has provided a keystone to support increasing interest in the “holobiome.” However, in species such as Drosophila melanogaster that have flexible gut microbiomes,
Philip T. Leftwich, Naomi V. E. Clarke, Matthew I. Hutchings, Tracey Chapman   +3 more
openaire   +4 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Reproductive Isolation through Experimental Manipulation of Sexually Antagonistic Coevolution in Drosophila melanogaster

Scientific Reports, 2017
Promiscuity can drive the evolution of sexual conflict before and after mating occurs. Post mating, the male ejaculate can selfishly manipulate female physiology, leading to a chemical arms race between the sexes.
Zeeshan Ali Syed, Martik Chatterjee, Manas Arun Samant, Nagaraj Guru Prasad   +3 more
doaj   +1 more source

Ten years of demographic modelling of divergence and speciation in the sea

Evolutionary Applications, 2023
Understanding population divergence that eventually leads to speciation is essential for evolutionary biology. High species diversity in the sea was regarded as a paradox when strict allopatry was considered necessary for most speciation events because ...
Aurélien De Jode, Alan Le Moan, Kerstin Johannesson, Rui Faria, Sean Stankowski, Anja Marie Westram, Roger K. Butlin, Marina Rafajlović, Christelle Fraïsse   +8 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source