Results 81 to 90 of about 221,946 (289)

Ecological and Genetic Divergences with Gene Flow of Two Sister Species (Leucomeris decora and Nouelia insignis) Driving by Climatic Transition in Southwest China

Frontiers in Plant Science, 2018
Understanding of the processes of divergence and speciation is a major task for biodiversity researches and may offer clearer insight into mechanisms generating biological diversity.
Yujuan Zhao, Genshen Yin, Yuezhi Pan, Xun Gong   +3 more
doaj   +1 more source

Acidogenesis‐Propelled Coordination Transition in Light‐Triggered Fe‐Polyphenol Polymer for Reactive Oxygen Species‐Augmented Antitumor Therapy

Advanced Science, EarlyView.
A novel iron‐polyphenol‐photoacid coordination polymer (FeBPs) is designed to achieve red light‐triggered external acidification and internal coordination regulation, where this light‐controlled acidification induces coordination changes that enhance Fe active site exposure and provide H+ for beneficial Fe3+/Fe2+ conversion, thereby accelerating ROS ...
Ying Wan, Hui Liu, Lin Gao, Guanyu Tan, Kailin Li, Qiwei Tian, Shiping Yang, Lu An   +7 more
wiley   +1 more source

The house mouse chromosomal hybrid zone in Valtellina (SO): a summary of past and present research

Hystrix, the Italian Journal of Mammalogy, 2000
<strong>Abstract</strong> Karyotypic variation due to the centric (Robertsonian: Rb) fusion of chromosomes is a widespread phenomenon among small mammal species. In 1993, we described a house mouse chromosomal hybrid zone in Upper Valtellina
Heidi Hauffe, Jaroslav Piálek, Jeremy Searle   +2 more
doaj   +1 more source

Construction of Multiple Asymmetric Catalytic Sites on Carbon Nitrides Toward Efficient Solar Hydrogen Peroxide Production

Advanced Science, EarlyView.
A structurally adaptive strategy has been developed to construct multiple asymmetric catalytic sites (S, Zn, N, O) within 1D and 2D carbon nitride. The asymmetric configuration promotes spatial separation of charge carriers and enhances O2 adsorption and *OOH formation through improved electron delocalization, significantly boosting photocatalytic H2O2
Siyu Sun, Feng Gao, Hu Yang
wiley   +1 more source

The paradox behind the pattern of rapid adaptive radiation: how can the speciation process sustain itself through an early burst?

Annual Review of Ecology, Evolution and Systematics, 2019
Rapid adaptive radiation poses a distinct question apart from speciation and adaptation: what happens after one speciation event? That is, how are some lineages able to continue speciating through a rapid burst?
C. Martin, E. Richards
semanticscholar   +1 more source

Uncovering the Lipid Interface in Neurotransmission: Single Molecule Measurements of Neurotransmitters Interacting with Membranes Reveal Species Dependent Membrane Binding

Advanced Science, EarlyView.
Using single‐molecule whispering gallery mode sensors, neurotransmitter‐specific membrane binding signatures are measured that reveal intrinsically distinct interaction kinetics and orientations on a lipid membrane. Abstract Neurotransmitters (NTs) have traditionally been understood to act via aqueous‐phase receptor binding, but growing evidence ...
Thomas L. Derrien, Aneeth Kakkanattu Arunkumar, Rosalind Cross, Emilie Sunnucks, Frank Vollmer   +4 more
wiley   +1 more source

“PATTERNS OF SPECIATION INDROSOPHILA” REVISITED [PDF]

, 1997
Jerry A. Coyne, H. Allen Orr
openalex   +1 more source

Manipulating Spin States by Metal Axial Coordination of Active Sites for Generating Valuable CH4 in CO2 Reduction

Advanced Science, EarlyView.
By encapsulating Ni atoms into Mn zeolitic imidazolate framework‐8, the spin‐state transition of Mn 3d3 from low‐spin to high‐spin was facilitated upon Ni axial coordination via Mn 3d orbital splitting. This facilitates the electronic donation and induces the closing of Mn d‐band center toward Fermi level to strengthen *CO adsorption, thereby ...
Min Zhang, Qi Zhao, Yixuan Gao, Lirong Zheng, Jin Ouyang, Na Na   +5 more
wiley   +1 more source

Ecological disruptive selection acting on quantitative loci can drive sympatric speciation

npj Systems Biology and Applications
The process of speciation generates biodiversity. According to the null model of speciation, barriers between populations arise in allopatry, where, prior to biology, geography imposes barriers to gene flow.
Pavithra Venkataraman, Supreet Saini
doaj   +1 more source

Updates in the Language of Histoplasma Biodiversity

mBio, 2018
In a recent article, Sepúlveda et al. (mBio 8:e01339-17, 2017, https://doi.org/10.1128/mBio.01339-17) investigated the genetic structure and evolutionary history of the human pathogen Histoplasma.
Pierre Gladieux
doaj   +1 more source