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Choosing Offspring Sex: Easier with Two-Speed Sperm

August 13, 2019

Choosing Offspring Sex: Easier with Two-Speed Sperm

Takashi Umehara, Natsumi Tsujita and Masayuki Shimada show that Toll-like receptors TLR7 and TLR8 are encoded by the mouse X chromosome and expressed in X-containing sperm but not Y-containing sperm. TLR7/8 ligands suppress the motility of X-containing sperm, allowing >80% enrichment for male or female offspring.

Image credit: Flickr user Zappys Technology Solutions

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PLOS Biology's XV Collection

08/09/2019

Methods and Resources

Nessys: Detecting Crowded Nuclei

Guillaume Blin, Sally Lowell and co-authors present Nessys, a new computational method allows researchers to measure the properties of individual nuclei in situations in which cells are tightly packed together, for example, during differentiation of stem cells in culture or during early postimplantation development.

Image credit: pbio.3000388

Nessys: Detecting Crowded Nuclei

Recently Published Articles

Current Issue

Current Issue July 2019

08/15/2019

Research Article

How Plants Sync their Biological Clocks

Computational modeling and experiments with Arabidopsis thaliana, by Mark Greenwood, James Locke and colleagues, reveal a new mechanism for the coordination of circadian timing across an organism, acting through a combination of organ-specific sensitivity to environmental inputs and local cell-cell coupling.

Image credit: James Locke

How Plants Sync their Biological Clocks

08/13/2019

Research Article

How Cool Worms Live Longer

Low temperatures delay aging and promote longevity in many organisms. Dongyeop Lee, Seon Woo An, Yoonji Jung, Seung-Jae Lee and co-workers show that at low ambient temperatures, Mediator 15, a transcriptional coregulator, allows the nematode Caenorhabditis elegans to live longer by increasing the levels of unsaturated lipids, helping to maintain protein homeostasis.

Image credit: pbio.3000415

How Cool Worms Live Longer

08/12/2019

Research Article

Encoding Pain per se...

The brain activity detected during pain could be due merely to the fact that pain is arousing and attention-grabbing, rather than being directly attributable to the pain itself. Björn Horing, Christian Sprenger and Christian Büchel identify an area of the brain — the parietal operculum — whose activity can only be explained by the painfulness of pain.

Encoding Pain per se...

Image credit: pbio.3000205

08/09/2019

Research Article

Novel Histone Regulates Candida Biofilm

Laxmi Shanker Rai, Kaustuv Sanyal and colleagues find that a variant histone H3 specific to the CTG clade of ascomycete fungi modulates the expression of the majority of the biofilm genes in the human pathogen Candida albicans by binding differentially to biofilm-relevant gene promoters.

Novel Histone Regulates Candida Biofilm

Image credit: pbio.3000422

08/09/2019

Research Article

High-Value Distraction 

Task-irrelevant distractors can automatically capture attention when they were previously associated with a high reward. Sirawaj Itthipuripat, Vy Vo, Thomas Sprague and John Serences show that these high-valued distractors increased the fidelity of neural representations in retinotopically organized regions of visual cortex.

High-Value Distraction 

Image credit: pbio.3000186

08/15/2019

Primer

Molecular Rube Goldberg Contraptions

Case studies of the evolution of molecular machines remain scarce. Morgan Beeby explores a recent study describing the evolution of a functionally diverse family of such machines: the Bacterial and Archaeal Type IV filament family.

Molecular Rube Goldberg Contraptions

Image credit: pbio.3000390

08/12/2019

Community Page

Author Citation Metrics by Field

John Ioannidis, Jeroen Baas, Richard Klavans, Kevin Boyack present a publicly available database that provides standardized information on multiple citation indicators, annotating each author according to his/her main scientific field(s).

Author Citation Metrics by Field

Image credit: Flickr user Gael Varoquaux

08/06/2019

Research Article

The Last Refuge of the Shark

Pelagic baited cameras reveal the last refuges of declining shark populations, showing that proximity to human activity centres is increasingly limiting the distribution of sharks, and that there is a mismatch between protected areas and the remaining shark hotspots.

The Last Refuge of the Shark

Image credit: pbio.3000366

08/06/2019

Research Article

Strategic Attentional Gain

The neural basis of a sophisticated attentional system that is able to differentially distribute feature-based attention such that the strongest attentional modulation is directed towards those neurons that are the most informative contributors to the task at hand.

Strategic Attentional Gain

Image credit: pbio.3000387

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