Results 31 to 40 of about 76,572 (264)

Positive selection and relaxed purifying selection contribute to rapid evolution of male-biased genes in a dioecious flowering plant

eLife
Sex-biased genes offer insights into the evolution of sexual dimorphism. Sex-biased genes, especially those with male bias, show elevated evolutionary rates of protein sequences driven by positive selection and relaxed purifying selection in animals ...
Lei Zhao, Wei Zhou, Jun He, De-Zhu Li, Hong-Tao Li   +4 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Multiple Glacial Refugia and Complex Postglacial Dynamics of Primula sikkimensis (Primuaceae) in the Heterogeneous Qinghai‐Tibet Plateau

Ecology and Evolution
The Qinghai‐Tibet Plateau (QTP) is a global biodiversity hotspot where Quaternary climatic oscillations profoundly shaped the evolution of endemic alpine flora.
Hua‐Ying Sun, Yu‐Ting He, Zhi‐Hua Zeng, Yuan‐Mi Wu, Li Zhong, Qing‐Hong Feng, Hui‐Ying Gong, Xin Wang, Hong Wang, Zhi‐Kun Wu, Wei Zhou   +10 more
doaj   +1 more source

Breaking the soil barrier: Somatic embryogenesis and polyploidization enable high-yield saponin in Panax notoginseng (Burk.) F.H.Chen

Industrial Crops and Products
Panax notoginseng (Burk.) F.H.Chen is a highly valuable medicinal plant. The saponins abundant in its roots and rhizomes are effective in medicine, health products, and skincare. However, its planting faces severe continuous-cropping obstacles, high soil-
Xue He, Jiaqi Chen, Mulan Wang, Jing Ling, Han Li, Yanxia Jia, Yuanxue Lu, Weiqi Li, Xudong Zhang   +8 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

A high-quality chromosome-level genome assembly of herbaceous bamboo species Lithachne pauciflora

Scientific Data
Lithachne pauciflora is a herbaceous bamboo species characterized by its short height, low degree of lignification, and dimorphic florets, making it a special model for studying the key trait evolution in bamboo.
Ke-Cheng Qian, Jun-Feng Liu, Yang Yang, Cen Guo, Zhen-Hua Guo   +4 more
doaj   +1 more source

Dispersed repeats and inverted repeat expansion drive major plastomic rearrangements in Calliandra haematocephala (Leguminosae: Mimoseae)

Frontiers in Plant Science
Structural variations in legume plastomes impact phylogenetic and evolutionary studies. In this study, we focus on the tribe Mimoseae by integrating a newly assembled plastome of Calliandra haematocephala (from PacBio sequencing data) with 15 previously ...
Libo Zhao, Libo Zhao, Kailun An, Kailun An, Wei Gu, Wei Gu, Qing Lu, Qing Lu, Ding-Jie Wang, Ding-Jie Wang, Zuoying XiaHou, Zuoying XiaHou, Rong Zhang, Rong Zhang, Ting-Shuang Yi, Ting-Shuang Yi   +15 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Mixed effects of honey bees on pollination function in the Tibetan alpine grasslands

Nature Communications
The global expansion of domesticated plant and animal species has profoundly impacted biodiversity and ecosystem functions. However, the spillover effect of non-native honey bees from mass-flowering crops into adjacent natural vegetation on pollination ...
Lin-Lin Wang, Zachary Y. Huang, Wen-Fei Dai, Yong-Ping Yang, Yuan-Wen Duan   +4 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source