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| Open AccessTemporospatial hierarchy and allele-specific expression of zygotic genome activation revealed by distant interspecific urochordate hybrids
Wei et al. report a unique interspecific ascidian hybrid system and single-cell RNA sequencing to reveal the temporal hierarchy, spatial heterogeneity, and allele-specific expression of zygotic genome activation in urochordates.
- Jiankai Wei
- , Wei Zhang
- & Bo Dong
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Article
| Open AccessKey homeobox transcription factors regulate the development of the firefly’s adult light organ and bioluminescence
Adult firefly light organs exhibit flashing signals important for courtship, though how these organs form during development is largely unknown. Here the authors demonstrate that homeobox transcription factors play a patterning role in the development of the adult light organs.
- Xinhua Fu
- & Xinlei Zhu
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Article
| Open AccessBat teeth illuminate the diversification of mammalian tooth classes
Despite their key role in the evolution of mammals, the origin and diversification of tooth classes (incisors, canines, premolars and molars) remain relatively obscure. Here the authors use integrative approaches to explain the independent evolution and rapid diversification of two tooth classes, premolar and molars, in noctilionoid bats.
- Alexa Sadier
- , Neal Anthwal
- & Karen E. Sears
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Article
| Open AccessThe architecture and operating mechanism of a cnidarian stinging organelle
The venomous stinging cells of jellyfish, anemones, and corals contain an organelle, the nematocyst, which explosively discharges a venom-laden thread. Here, the authors describe the nematocyst thread and its sub-structures in the sea anemone N. vectensis, revealing a complexity and sophistication underpinning this cellular weapon.
- Ahmet Karabulut
- , Melainia McClain
- & Matthew C. Gibson
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Article
| Open AccessGenerating high quality libraries for DIA MS with empirically corrected peptide predictions
Data-independent acquisition-mass spectrometry (MS) typically requires many preparatory MS runs to produce experiment-specific spectral libraries. Here, the authors show that empirical correction of in silico predicted spectral libraries enables efficient generation of high-quality experiment-specific libraries.
- Brian C. Searle
- , Kristian E. Swearingen
- & Mathias Wilhelm
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Article
| Open AccessEngineered bidirectional promoters enable rapid multi-gene co-expression optimization
Classic monodirectional promoters are of limited use for multiple gene co-expression. Here the authors generate a library of 168 bidirectional promoters for the yeast K. phaffii (syn. P. pastoris) with diverse expression profiles to optimize metabolic pathway design.
- Thomas Vogl
- , Thomas Kickenweiz
- & Anton Glieder