Results 11 to 20 of about 3,930 (205)

The Plot Thickens: Haploid and Triploid-Like Thalli, Hybridization, and Biased Mating Type Ratios in Letharia [PDF]

open access: yesFrontiers in Fungal Biology, 2021
The study of the reproductive biology of lichen fungal symbionts has been traditionally challenging due to their complex lifestyles. Against the common belief of haploidy, a recent genomic study found a triploid-like signal in Letharia.
Sandra Lorena Ament-Velásquez   +9 more
doaj   +3 more sources

How to make a haploid male [PDF]

open access: yesEvolution Letters, 2019
Haplodiploidy has evolved repeatedly among invertebrates, and appears to be associated with inbreeding. Evolutionary biologists have long debated the possible benefits for females in diplodiploid species to produce haploid sons–beginning their population'
Laura Ross   +2 more
doaj   +2 more sources

Chromosome doubling by colchicine injection and haploidy induction in tropical genotypes of common and supersweet corn [PDF]

open access: yesSemina: Ciências Agrárias
The double-haploid technology in maize was developed in temperate environments, using germplasm and inducers adapted for these environments, with the aim of accelerating the obtaining of homozygous inbred lines.
Leticia de Freitas de Souza   +6 more
doaj   +2 more sources

Mitotic recombination accelerates adaptation in the fungus Aspergillus nidulans. [PDF]

open access: yesPLoS Genetics, 2007
Understanding the prevalence of sexual reproduction in eukaryotes is a hard problem. At least two aspects still defy a fully satisfactory explanation, the functional significance of genetic recombination and the great variation among taxa in the relative
Sijmen E Schoustra   +3 more
doaj   +2 more sources

Derivation of Mouse Haploid Trophoblast Stem Cells

open access: yesCell Reports, 2019
Summary: Trophoblast stem (TS) cells are increasingly used as a model system for studying placentation and placental disorders. However, practical limitations of genetic manipulation have posed challenges for genetic analysis using TS cells.
Tongtong Cui   +14 more
doaj   +2 more sources

Haploid induction: an overview of parental factor manipulation during seed formation [PDF]

open access: yesFrontiers in Plant Science
In plants, in vivo haploid induction has gained increasing attention for its significant potential applications in crop breeding and genetic research.
Jingpu Song   +3 more
doaj   +2 more sources

Metabolic Imbalance Triggers Adaptive Remodeling to Accelerate Diploidization in Murine Haploid Embryonic Stem Cells. [PDF]

open access: yesAdv Sci (Weinh)
In this article, Shuai and colleagues demonstrate that metabolic remodeling drives self‐diploidization in murine haploid ESCs (haESCs). Mitochondrial dysfunction and imbalanced pyruvate metabolism underlie this process. Genome‐wide screening using haESCs identifies key mitochondrial quality‐control related genes, enabling a metabolism‐based medium that
Fu Y   +11 more
europepmc   +2 more sources

Ploidy Variation and Spontaneous Haploid-Diploid Switching of Candida glabrata Clinical Isolates

open access: yesmSphere, 2022
The human fungal pathogen Candida glabrata is phylogenetically closely related to Saccharomyces cerevisiae, a model eukaryotic organism. Unlike S. cerevisiae, which has both haploid and diploid forms and a complete sexual cycle, C. glabrata has long been
Qiushi Zheng   +8 more
doaj   +1 more source

Dysregulated Gene Expression of Imprinted and X-Linked Genes: A Link to Poor Development of Bovine Haploid Androgenetic Embryos

open access: yesFrontiers in Cell and Developmental Biology, 2021
Mammalian uniparental embryos are efficient models for genome imprinting research and allow studies on the contribution of the paternal and maternal genomes to early embryonic development.
Luis Aguila   +6 more
doaj   +1 more source

The evolution of haploidy and diploidy [PDF]

open access: yesCurrent Biology, 2008
It is remarkable that one of the most fundamental features of an organism — its ploidy level — is so variable among taxa, with life cycles running the entire gamut from complete haploid dominance to complete diploid dominance. Theoretical studies have clarified many important genetic advantages to haploidy (for example, lower mutation load, more rapid ...
Otto, Sarah P., Gerstein, Aleeza C.
openaire   +2 more sources

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