🧬 biology

Decision strategies appear similar across species and development, but differences emerge in the speed-accuracy relationship

通过结合条件准确度函数与漂移扩散模型,本研究揭示了尽管人类与猕猴在涉及坍缩边界的进化保守决策框架方面具有共性,但儿童表现出的独特快速错误模式是由不稳定的初始决策状态驱动的,这可能归因于发育不成熟的前额叶纹状体网络。

Mariella Segreti, Sara Dal Sasso, Fabio Di Bello, Giampiero Bardella, Ann Paul, Surabhi Ramawat, Deny Menghini, Ferraina (…)2026-08-20
🧬 biology

Identification and characterization of the CCoAOMT gene family in walnut and the regulatory function of JrCCoAOMT3 in lignin biosynthesis

本研究鉴定了核桃 CCoAOMT 基因家族,并证实了特定成员 JrCCoAOMT3 通过改变单体组成(特别是减少 H 型木质素)作为木质素生物合成的关键调节因子,从而为改良核桃壳硬度提供了分子层面的见解。

Ruixia Gao, Shangqi Yu, Yonglin Shao, Qian Ye, Xingyu Guo, Shan Gao, Yongqiang Chen, Qiang Jin, Rui Zhang, Zhongzhong Gu (…)2026-08-20
🧬 biology

Extreme tolerance to chromosomal restructuring and male-linked B chromosome inheritance in Neotropical vertebrate model

本研究将新热带地区弹琴鲶属鱼类 *Bunocephalus aloikae* 表征为理解极端基因组可塑性的强有力模型,揭示了其对个体特异性大规模染色体重排的卓越耐受性,以及在缺乏稳定性别染色体系统的情况下对雄性连锁 B 色染色体的遗传。

Tomáš Pavlica, Ahmed Al-Rikabi, Tomáš Dvořák, Vendula Bohlen Šlechtová, Niklas Padutsch, Thomas Liehr, Petr Ráb, Milena (…)2026-08-20
🧬 biology

Exercise ameliorates sarcopenia and metabolic dysfunction–associated steatohepatitis through activation of skeletal muscle PGC-1α/SIRT1 signaling in mice

本研究表明,自愿运动通过激活骨骼肌 PGC-1α/SIRT1 信号通路以抑制 TNF-α 介导的炎症,从而通过局部代谢重塑而非全身性肌细胞因子释放,改善了老年小鼠的肌少症和代谢功能障碍相关脂肪肝炎。

Daisuke Minowa, Yohei Shirakami, Toshihide Maeda, Shinji Unome, Makoto Kamei, Daisuke Taguchi, Masaya Kubota, Kenji Imai (…)2026-08-20
🧬 biology

First molecular confirmation and distributional refinement of Bhutan takin (Budorcas taxicolor whitei) in Arunachal Pradesh, India: an integrative approach with conservation implications

本研究通过整合红外相机监测、形态学观察以及线粒体DNA分析,为印度阿鲁纳恰尔邦的白眉牦牛(*Budorcas taxicolor whitei*)提供了首次分子确认与分布范围精细化研究,从而验证了其存在并扩大了其在东喜马拉雅地区的已知分布范围。

Yomto Mayi, Salvador Lyngdoh, Shantabala Devi Gurumayum, Vikram Delu2026-08-20
🧬 biology

Outer Membrane Vesicles derived from Klebsiella pneumoniae enhance biofilm formation and matrix integrity by delivering biofilm-associated mRNAs

本研究表明,源自肺炎克雷伯菌(尤其是来自生物膜状态)的外膜囊泡(OMVs)通过传递包括编码群体感应组分在内的生物膜相关 mRNA,增强了生物膜的形成和基质完整性,从而揭示了一种新的生物膜调节机制及潜在的治疗靶点。

Jiahui Wang, Zijuan Jian, Xia Chen, Yanming Li, Peilin Liu, Qun Yan, Wenen Liu2026-08-20