Results 91 to 100 of about 334,411 (359)

A hypothesis on the role of transposons [PDF]

arXiv, 2010
"Epigenetic Tracking" is an evo-devo method to generate arbitrary 2d or 3d shapes; as such, it belongs to the field of "artificial embryology". In silico experiments have proved the effectiveness of the method in devo-evolving shapes of any kind and complexity (in terms of number of cells, number of colours, etc.), establishing its potential to ...
arxiv  

Propagation of weakly advantageous mutations in cancer cell population [PDF]

arXiv, 2023
Research into somatic mutations in cancer cell DNA and their role in tumour growth and progression between successive stages is crucial for improving our understanding of cancer evolution. Mathematical and computer modelling can provide valuable insights into the scenarios of cancer growth, the roles of somatic mutations, and the types and strengths of
arxiv  

Chromosome‐Level Genome Assembly of the Leafcutter Bee Megachile rotundata Reveals Its Ecological Adaptation and Pollination Biology

Advanced Science, EarlyView.
The genome of Megachile rotundata, an extensively managed solitary pollination bee species, has been sequenced, covering 280.68 Mb and predicting 10 701 genes. The study reveals significant expansions of the Toll gene family and their abundant expression in diapause prepupae, highlighting enhanced immune responses during diapause. This genome serves as
Rangjun Shi, Pan Duan, Mengmeng Zhu, Rong Zhang, Zihua Zhao, Xin Nie, Hanhou He, Li Hou, Xianhui Wang   +8 more
wiley   +1 more source

Esterase and peroxidase isoforms during initial stages of somatic embryogenesis in Fritillaria meleagris L. leaf base [PDF]

Archives of Biological Sciences, 2017
The aim of this study was to determine the enzymatic profile of esterases and peroxidases during early stages of somatic embryogenesis of Fritillaria meleagris L.
Petrić Marija, Subotić Angelina, Jevremović Slađana, Trifunović-Momčilov Milana, Tadić Vojin, Grujić Marica, Vujčić Zoran   +6 more
doaj   +1 more source

Utilizing Protein Structure to Identify Non-Random Somatic Mutations [PDF]

, 2013
Motivation: Human cancer is caused by the accumulation of somatic mutations in tumor suppressors and oncogenes within the genome. In the case of oncogenes, recent theory suggests that there are only a few key "driver" mutations responsible for tumorigenesis. As there have been significant pharmacological successes in developing drugs that treat cancers
arxiv   +1 more source

Plac1+ Tumor Cell‐Treg Interplay Supports Tumorigenesis and Progression of Head and Neck Cancer

Advanced Science, EarlyView.
Meng et al. screen genes in the CTAs family and find Plac1 is specifically expressed in head and neck squamous cell carcinoma (HNSCC) cells. They reveal that Plac1 expression promotes HNSCC progression directly by activating PI3K/AKT signaling pathway.
Xiaoyan Meng, Zhonglong Liu, Lu Zhao, Ran Li, Luoman Gan, Liren Cao, Jingjing Sun, Lingfang Zhang, Yue He   +8 more
wiley   +1 more source

Effet du sucre sur l'embryogenèse somatique de l'olivier (Olea europaea L.) cv. 'Picholine marocaine' [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2008
Effect of sugar on somatic embryogenesis of olive tree (Olea europaea L.) cv ' Moroccan Picholine '. The somatic embryogenesis of the olive tree cv ' Moroccan Picholine ' has been until now very little studied, in spite of its importance for Morocco.Thus,
Abousalim A., Brhadda N., Loudyi D.E.W.
doaj  

Recurrent Somatic Embryogenesis and Plantlet Regeneration in Psidium guajava L.

Brazilian Archives of Biology and Technology, 2016
A simple and efficient protocol for recurrent somatic embryogenesis and plant regeneration is one of the prerequisites for genetic improvement of guava. An efficient reproducible regeneration somatic embryogenesis protocol was developed in four genotypes
Anju Bajpai, Shahina Kalim, Ramesh Chandra, Madhu Kamle   +3 more
doaj   +1 more source

PABPN1 Couples the Polyadenylation and Translation of Maternal Transcripts to Mouse Oocyte Meiotic Maturation

Advanced Science, EarlyView.
This study reveals that cytoplasmic PABPN1 is essential for mouse oocyte meiotic maturation by coordinating polyadenylation, translation, and degradation of maternal mRNAs. Pabpn1 knockout disrupts CDK1 activation, spindle formation, and chromosome alignment by impairing maturation‐promoting factor (MPF) regulation and BTG4‐mediated deadenylation ...
Xing‐Xing Dai, Yu‐Ke Wu, Shuai‐Bo Pi, Feng‐Jie Hu, Yun‐Wen Wu, Hang Qi, Zhi‐Yan Jiang, Long‐Wen Zhao, Heng‐Yu Fan   +8 more
wiley   +1 more source

Age‐incidence patterns of seminoma and nonseminoma among males and females in Germany and the United States, 2008–2016

Andrology, Volume 11, Issue 1, Page 65-72, January 2023., 2023
Abstract Background & objectives The comparison of the incidence of gonadal germ cell tumors among males and females can provide insights that cannot be gained by separately studying these tumors. Material and methods Incidence data on male and female gonadal germ cell tumors were drawn from the cancer registries of North Rhine‐Westphalia, Germany, and
Andreas Stang, Pietro Trocchi, Hiltraud Kajüter, Britton Trabert, J. Wolter Oosterhuis, Katherine A. McGlynn   +5 more
wiley   +1 more source