Results 21 to 30 of about 6,984 (172)

Effects of ploidy and recombination on evolution of robustness in a model of the segment polarity network. [PDF]

open access: yesPLoS Computational Biology, 2009
Many genetic networks are astonishingly robust to quantitative variation, allowing these networks to continue functioning in the face of mutation and environmental perturbation. However, the evolution of such robustness remains poorly understood for real
Kerry J Kim, Vilaiwan M Fernandes
doaj   +1 more source

Ancient evolutionary trade-offs between yeast ploidy states. [PDF]

open access: yesPLoS Genetics, 2013
The number of chromosome sets contained within the nucleus of eukaryotic organisms is a fundamental yet evolutionarily poorly characterized genetic variable of life.
Enikö Zörgö   +8 more
doaj   +1 more source

Novel Chromosome Organization Pattern in Actinomycetales—Overlapping Replication Cycles Combined with Diploidy

open access: yesmBio, 2017
Bacteria regulate chromosome replication and segregation tightly with cell division to ensure faithful segregation of DNA to daughter generations. The underlying mechanisms have been addressed in several model species.
Kati Böhm   +5 more
doaj   +1 more source

Karyological analysis of the five native Macaronesian Festuca (Gramineae) grasses supports a distinct diploid origin of two schizoendemic groups

open access: yesAnales del Jardín Botánico de Madrid, 2009
A karyological analysis has been conducted of all five native Macaronesian Festuca grasses belonging to fine-leaved F. subg. Festuca sect. Aulaxyper and broad-leaved F. subg. Drymanthele sect. Phaeochloa Loliinae lineages.
Miguel Menezes de Sequeira   +4 more
doaj   +1 more source

Target Capture Sequencing Provides Insights Into Hybridogenetic Water Frogs. [PDF]

open access: yesEcol Evol
The genomics of European frogs of the genus Pelophylax are intriguing due to their propensity to hybridise, the prevalence of polyploidy, and the unusual hemiclonal hybridogenetic complexes formed in many populations. This study examines the use of target capture sequencing using the Frog Cap bait set to investigate these complex systems.
van Veldhuijzen L   +5 more
europepmc   +2 more sources

Diploidy within a Haploid Genus of Entomopathogenic Fungi [PDF]

open access: yesGenome Biology and Evolution, 2021
Abstract Fungi in the genus Metarhizium are soil-borne plant–root endophytes and rhizosphere colonizers, but also potent insect pathogens with highly variable host ranges. These ascomycete fungi are predominantly asexually reproducing and ancestrally haploid, but two independent origins of persistent diploidy within the Coleoptera ...
Knud Nor Nielsen   +5 more
openaire   +4 more sources

Cryptic fitness advantage: diploids invade haploid populations despite lacking any apparent advantage as measured by standard fitness assays. [PDF]

open access: yesPLoS ONE, 2011
Ploidy varies tremendously within and between species, yet the factors that influence when or why ploidy variants are adaptive remains poorly understood.
Aleeza C Gerstein, Sarah P Otto
doaj   +1 more source

X-Linked Intellectual Developmental Disorder-93 Caused by BRWD3 Mutation in Females: A Case Report and Literature Review. [PDF]

open access: yesMol Genet Genomic Med
A case of MRX93 in a 1‐year‐and‐3‐month‐old girl was reported, in whom a heterozygous deletion from exon 21 to exon 30 in the BRWD3 gene occurred. We conducted a literature review to explore the clinical phenotypes and genetic characteristics of MRX93 in females. ABSTRACT Objective To report the clinical manifestations and genetic diagnosis of a female
Xiu Y, Zhang Y, Jiao Y, Wang W, Hu Y.
europepmc   +2 more sources

Onset of quiescence following p53 mediated down-regulation of H2AX in normal cells.

open access: yesPLoS ONE, 2011
Normal cells, both in vivo and in vitro, become quiescent after serial cell proliferation. During this process, cells can develop immortality with genomic instability, although the mechanisms by which this is regulated are unclear.
Yuko Atsumi   +15 more
doaj   +1 more source

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