Results 41 to 50 of about 1,281 (216)

The contribution of multiple barriers to reproduction between edaphically divergent lineages in the Amazonian tree Protium subserratum (Burseraceae)

Ecology and Evolution, 2020
Disentangling the strength and importance of barriers to reproduction that arise between diverging lineages is central to our understanding of species origin and maintenance. To date, the vast majority of studies investigating the importance of different
Tracy M. Misiewicz, Tracey S. Simmons, Paul V. A. Fine   +2 more
doaj   +1 more source

Maladaptive learning and memory in hybrids as a reproductive isolating barrier [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2018
Selection against hybrid offspring, or postzygotic reproductive isolation, maintains species boundaries in the face of gene flow from hybridization. In this review, we propose that maladaptive learning and memory in hybrids is an important, but overlooked form of postzygotic reproductive isolation.
Amber M. Rice, Michael A. McQuillan
openaire   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Mechanisms of prezygotic post-pollination reproductive barriers in plants

Frontiers in Plant Science, 2023
Hybridisation between individuals of different species can lead to maladapted or inviable progeny due to genetic incompatibilities between diverging species. On the other hand, mating with close relatives, or self-fertilisation may lead to inbreeding depression. Thus, both too much or too little divergence may lead to problems and the organisms have to
Wang, Ludi, Filatov, Dmitry A
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

Role of melatonin in male reproduction

Asian Pacific Journal of Reproduction, 2019
Melatonin, conventionally accepted as a pineal gland secretion, is a neuromodulator whose physiological concentrations are regulated by circadian rhythms.
Koushik Bhattacharya, Pallav Sengupta, Sulagna Dutta   +2 more
doaj   +1 more source

Intra- and inter-specific reproductive barriers in the tomato clade

Frontiers in Plant Science, 2023
Tomato (Solanum lycopersicum L.) domestication and later introduction into Europe resulted in a genetic bottleneck that reduced genetic variation. Crosses with other wild tomato species from the Lycopersicon clade can be used to increase genetic diversity and improve important agronomic traits such as stress tolerance.
Moreels, Pauline, Bigot, Servane, Defalque, Corentin, Correa Soto, Francisco, Martinez, Juan-Pablo, Lutts, Stanley, Quinet, Muriel   +6 more
openaire   +4 more sources

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

Obtained intergeneric hybrids from distant hybridization between Lagerstroemia and Heimia

Ornamental Plant Research
Lagerstroemia comes in a variety of bright petal colors, but it lacks yellow flowers. To breed yellow-flowered cultivars, eight Lagerstroemia and two Heimia species were used for intergeneric hybridization.
Qifang Lin, Xin Wang, Zhiting Wan, Jingting Tao, Xiufeng Chi, Ping Shen, Ming Cai, Jia Wang, Tangren Cheng, Qixiang Zhang, Huitang Pan   +10 more
doaj   +1 more source