Results 21 to 30 of about 90,784 (353)

DNA content analysis of colorectal cancer defines a distinct ‘microsatellite and chromosome stable’ group but does not predict response to radiotherapy [PDF]

open access: yes, 2014
Colorectal cancers (CRC) are thought to have genetic instability in the form of either microsatellite instability (MSI) or chromosomal instability (CIN).
Abdel-Rahman   +44 more
core   +2 more sources

Interspecific hybridization of sturgeon species affects differently their gonadal development

open access: yesCzech Journal of Animal Science, 2018
Gonad development in fish is generally assumed to be negatively influenced by interspecific hybridization, resulting in sterility or sub-sterility. However, this is not the case in sturgeons (Acipenseridae), in which fertile hybrids are common.
Zuzana Linhartová   +3 more
doaj   +1 more source

Effects of Donor x Inducer Interaction on the Success of Haploid Induction and Comparison of Haploid Seed Identification Methods in the In vivo Maternal Haploid Technique in Maize

open access: yesJournal of Agricultural Sciences, 2022
This study was conducted to investigate the effect of donor and inducer lines on the haploid induction rate in the in vivo maternal doubled haploid technique in maize and to compare the methods used in haploid seed separation.
Berk Vural   +4 more
doaj   +1 more source

A Target Capture-Based Method to Estimate Ploidy From Herbarium Specimens

open access: yesFrontiers in Plant Science, 2019
Whole genome duplication (WGD) events are common in many plant lineages, but the ploidy status and possible occurrence of intraspecific ploidy variation are unknown for most species.
Juan Viruel   +16 more
doaj   +1 more source

A rewiring model of intratumoral interaction networks. [PDF]

open access: yes, 2019
Intratumoral heterogeneity (ITH) has been regarded as a key cause of the failure and resistance of cancer therapy, but how it behaves and functions remains unclear.
Alizadeh   +35 more
core   +2 more sources

Embryos Arising from Apronuclear (0PN) and Unipronuclear (1PN) Have Similar Euploidy Rates with Those from 2PN and Should be Considered for Transfer

open access: yesFertility & Reproduction, 2019
Background: Fertilisation assessment is routinely made at 16–18 hours post-ICSI and 18–20 hours post-insemination. However, the absence of pronuclei (PN) during standard fertilisation assessment does not necessarily indicate fertilisation failure.
Adelle Yun Xin Lim, Colin Soon Soo Lee
doaj   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations. [PDF]

open access: yesNew Phytol
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Schley RJ   +9 more
europepmc   +2 more sources

Multicolour interphase cytogenetics: 24 chromosome probes, 6 colours, 4 layers [PDF]

open access: yes, 2011
From the late 1980s onwards, the use of DNA probes to visualise sequences on individual chromosomes (fluorescent in-situ hybridisation - FISH) revolutionised the study of cytogenetics.
A.R. Thornhill   +61 more
core   +1 more source

Dosage Sensing, Threshold Responses, and Epigenetic Memory: A Systems Biology Perspective on Random X‐Chromosome Inactivation

open access: yes, 2020
X‐chromosome inactivation ensures dosage compensation between the sexes in mammals by randomly choosing one out of the two X chromosomes in females for inactivation.
Barr M. L.   +4 more
core   +1 more source

Yield, structural composition and nutritive characteristics of ryegrass cultivars used to haymaking in lowland soils

open access: yesBioscience Journal, 2018
This research aimed to evaluate the dry matter yield, structural composition and nutritive characteristics of diploid and tetraploid annual ryegrass cultivars on different phenological development to haymaking on lowland soils.
Olmar Antônio Denardin Costa   +7 more
doaj   +1 more source

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