Results 271 to 280 of about 26,352 (303)

Deciphering recent transposition patterns in plants through comparison of 811 genome assemblies

Plant Biotechnology Journal, Volume 23, Issue 4, Page 1121-1132, April 2025.
Summary Transposable elements (TEs) are significant drivers of genome evolution, yet their recent dynamics and impacts within and among species, as well as the roles of host genes and non‐coding RNAs in the transposition process, remain elusive. With advancements in large‐scale pan‐genome sequencing and the development of open data sharing, large‐scale
Yan Huang, Sunil Kumar Sahu, Xin Liu
wiley   +1 more source

Jan and mini‐Jan, a model system for potato functional genomics

Plant Biotechnology Journal, Volume 23, Issue 4, Page 1243-1256, April 2025.
Summary Potato (Solanum tuberosum) is the third‐most important food crop in the world. Although the potato genome has been fully sequenced, functional genomics research of potato lags behind that of other major food crops, largely due to the lack of a model experimental potato line.
Haoyang Xin, Luke W. Strickland, John P. Hamilton, Jacob K. Trusky, Chao Fang, Nathaniel M. Butler, David S. Douches, C. Robin Buell, Jiming Jiang   +8 more
wiley   +1 more source

Safety evaluation of the food enzyme tannase from the non‐genetically modified Aspergillus sp. strain TAN 206

EFSA Journal, Volume 23, Issue 4, April 2025.
Abstract The food enzyme tannase (tannin acylhydrolase; EC 3.1.1.20) is produced with the non‐genetically modified Aspergillus sp. strain TAN 206 by Shin Nihon Chemical Co., Ltd. The food enzyme is free from viable cells of the production organism. It is intended to be used in two food manufacturing processes. Dietary exposure was estimated to be up to
EFSA Panel on Food Enzymes (FEZ), Holger Zorn, José Manuel Barat Baviera, Claudia Bolognesi, Francesco Catania, Gabriele Gadermaier, Ralf Greiner, Baltasar Mayo, Alicja Mortensen, Yrjö Henrik Roos, Marize L. M. Solano, Monika Sramkova, Henk Van Loveren, Laurence Vernis, Ana Criado, Magdalena Andryszkiewicz, Daniele Cavanna, Eleonora Marini, Yi Liu   +18 more
wiley   +1 more source

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Emerging roles of centromeric RNAs in centromere formation and function

Genes & Genomics, 2021
Centromeres are specialized chromosomal domains involved in kinetochore formation and faithful chromosome segregation. Despite a high level of functional conservation, centromeres are not identified by DNA sequences, but by epigenetic means. Universally, centromeres are typically formed on highly repetitive DNA, which were previously considered to be ...
Yang Liu, James A. Birchler, Qian Liu, Chunhui Wang, Qinghua Shi, Handong Su, Handong Su, Fangpu Han   +7 more
openaire   +3 more sources

Centromeric retrotransposons and centromere function

Current Opinion in Genetics & Development, 2018
The centromeric DNA of most multicellular eukaryotes consists of tandem repeats (TR) that bind centromere-specific proteins and act as a substrate for the efficient repair of frequent double-stranded DNA breaks. Some retrotransposons target active centromeres during integration with such specificity that they can be used to deduce current and historic ...
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Sister chromatid exchange in the centromere and centromeric area

Human Genetics, 1983
Central and peripheral sister chromatid exchanges (SCE) were evaluated separately in human phytohemagglutinin (PHA)-stimulated lymphocytes after culture for 72 h in 5-bromodeoxyuridine (BrdU) containing medium. At the same time, the length of chromosome No.
Reinhard Becher, Avery A. Sandberg
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Centromerization

Trends in Cell Biology, 2000
Centromere formation is a complex process that involves the packaging of DNA into a centromere-unique chromatin, chemical modification and the seeding of kinetochore and associated proteins. The early steps in this process, in which a chromosomal region is marked for centromerization (that is, to become resolutely committed to centromere formation ...
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Silence of the centromeres – not

Trends in Biotechnology, 2004
Centromeres are a conundrum; although many proteins associated with centomeres are conserved from yeast to humans, the underlying DNA sequence is not. A proposed solution to this problem is that an epigenetic, largely heterochromatic, state be imposed by these proteins.
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Centromere spreading and centromeric aberrations in ovarian tumors

Cancer Genetics and Cytogenetics, 1995
Centromere spreading (CS) of chromosomes and high occurrence of aberrations at centromeric region were observed in two papillary serous cystadenocarcinomas and one borderline papillary serous cystadenoma of the ovary. In the borderline tumor, CS of chromosome 12, trisomy of which had been reported as the sole abnomaly in benign ovarian tumors, was seen
Mei S. Ma, Mu Y. Li, Rong Z. Zhao, Dan Zhu   +3 more
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Plant centromeres

Current Opinion in Plant Biology, 2017
Plant centromeres, which are determined epigenetically by centromeric histone 3 (CENH3) have revealed surprising structural diversity, ranging from the canonical monocentric seen in vertebrates, to polycentric, and holocentric. Normally stable, centromeres can change position over evolutionary times or upon genomic stress, such as when chromosomes are ...
Luca, Comai, Shamoni, Maheshwari, Mohan P A, Marimuthu   +2 more
openaire   +2 more sources