Results 131 to 140 of about 18,943 (253)

Homologous recombination mutants cause differing lethality between h− and h+ Schizosaccharomyces pombe strains due to mat1 heterochromatin

The FEBS Journal, EarlyView.
Homologous recombination (HR) in Schizosaccharomyces pombe is essential when mating‐type switching–induced double‐strand breaks (DSBs) form at the mat1 locus. In h90 and h− strains, efficient mat1 DSB formation renders HR indispensable unless suppressors block these breaks.
Peter Kolesar, Siarhei Paliavoi, Barbora Stefanovie, Jan Josef Palecek   +3 more
wiley   +1 more source

ATXR5 and ATXR6 restrict meiotic crossover formation within heterochromatin in Arabidopsis

Journal of Integrative Plant Biology, EarlyView.
The Arabidopsis H3K27 mono‐methyltransferases ATXR5 and ATXR6 repress crossovers within meiotic heterochromatin, are required for heterochromatin condensation and H3K27me1 establishment, and specifically influence the maintenance of DNA methylation in meiocytes.
Jun Zhang, Yue Yu, Han Wang, Meiling Li, Dingning Li, Chenjiang You, Yingxiang Wang, Cong Wang   +7 more
wiley   +1 more source

Genetic Susceptibility to Periodontitis

Journal of Periodontal Research, EarlyView.
Aim: The aim of this narrative review was to identify genes carrying risk alleles associated with an increased risk of periodontitis and to place them in a biological context. Methods: The literature was reviewed based on predefined criteria. Results: The identified genes largely fall into functions linking immune response with tissue repair. The genes
Gesa M. Richter, Arne S. Schaefer
wiley   +1 more source

Meiotic regulation of kinetochore composition and function [PDF]

, 2019
The survival and fitness of an organism rely on faithful transmission of the genome. In sexually reproducing organisms, genome transmission requires a specialized cell division named meiosis, in which the parental genome is shuffled and halved.
Chen, Jingxun
core  

The 3D genome of Gigaspora margarita unveils stable chromatin and nucleolar organization and symbiont‐dependent genome dynamics

New Phytologist, EarlyView.
Summary Arbuscular mycorrhizal fungi (AMF) are widespread plant symbionts that enhance nutrient acquisition and influence ecosystem productivity. Previous chromosome‐level assemblies of the model species Rhizophagus irregularis revealed a two‐compartment genome architecture (active A and repressed B chromatin compartments), yet its conservation across ...
Ken Mugambi, Jordana Oliveira, Franco Magurno, Alessandra Salvioli di Fossalunga, Mara Novero, Luisa Lanfranco, Stefano Ghignone, Gökalp Yildirir, Yan Wang, Paola Bonfante, Nicolas Corradi   +10 more
wiley   +1 more source

Long‐term surveillance reveals hybridization by nuclear reassortment and intercontinental spread as major evolutionary drivers in wheat yellow rust

New Phytologist, EarlyView.
Documented incursions of Puccinia striiformis 2009–2023 based on sequential resampling of MLGs/pathogen races on different continents. Summary Evolutionary forces affecting crop pathogens, including hybridization and long‐distance dispersal (LDD), may have strong implications for food security and sustainable plant disease control at global scales ...
Mogens Støvring Hovmøller, Tine Thach, Julian Rodriguez‐Algaba, Jens Grønbech Hansen, Marcel Meyer, David P. Hodson, Kumarse Nazari, Robert F. Park, Rita Tam, Mareike Möller, Benjamin Schwessinger, John P. Rathjen, Paula Silva, Venancio Riella, Annemarie Fejer Justesen   +14 more
wiley   +1 more source

Corrigendum: Revisiting Meiosis in Sugarcane: Chromosomal Irregularities and the Prevalence of Bivalent Configurations

Frontiers in Genetics, 2019
Maria Lucia C. Vieira, Carmelice B. Almeida, Carlos A. Oliveira, Luana O. Tacuatiá, Carla F. Munhoz, Luiz A. Cauz-Santos, Luciana R. Pinto, Claudia B. Monteiro-Vitorello, Mauro A. Xavier, Eliana R. Forni-Martins   +9 more
doaj   +1 more source

Insights into the Meiotic Behavior and Evolution of Multiple Sex Chromosome Systems in Spiders

, 2011
A characteristic feature of spider karyotypes is the predominance of unusual multiple X chromosomes. To elucidate the evolution of spider sex chromosomes, their meiotic behavior was analyzed in 2 major clades of opisthothele spiders, namely, the ...
L. Krkavcová, M. Forman, J. Král, T. Kořínková   +3 more
core   +1 more source

Accessory regions and horizontal gene transfer shape the evolution of clonal Colletotrichum nymphaeae infecting strawberry

New Phytologist, EarlyView.
Genetic diversity of strawberry‐infecting Colletotrichum isolates. Summary Rapid adaptation in fungal plant pathogens is often attributed to sexual recombination, yet many important pathogens are largely clonal. We investigated how genetic and phenotypic diversity arises in the predominantly asexual fungus Colletotrichum nymphaeae, the main cause of ...
Joris A. Alkemade, Alan G. Buddie, Anthony Kermode, Timothy G. Barraclough   +3 more
wiley   +1 more source

Citogenética de especies de Vasconcellea (Caricaceae)

Acta Agronómica, 2008
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Caetano Creucí María, Lagos Burbano Túlio César, Caetano Nunes Diego Feraldo, Sandoval Sierra Claudia Lorena, Posada Tique César Augusto   +4 more
doaj