Results 51 to 60 of about 115,209 (391)

p53: Guardian of ploidy

open access: yesMolecular Oncology, 2011
AbstractAneuploidy, often preceded by tetraploidy, is one of the hallmarks of solid tumors. Indeed, both aneuploidy and tetraploidy are oncogenic occurrences that are sufficient to drive neoplastic transformation and cancer progression. True to form, the tumor suppressor p53 obstructs propagation of these dangerous chromosomal events by either ...
Aylon, Yael, Oren, Moshe
openaire   +4 more sources

Diâmetro dos grãos de pólen e tamanho dos estômatos em acessos diplóides e tetraplóides de Hemarthria altissima (Poiret) Stapf & Hubbard (Gramineae) Pollen grain diameter and stomatal size in diploid and tetraploid accessions of Hemarthria altissima (Poiret) Stapf & Hubbard (Gramineae)

open access: yesCiência Rural, 1999
Sete acessos da gramínea forrageira Hemarthria altissima, diplóides e tetraplóides africanos e tetraplóides brasileiros, foram analisados com fins de caracterizar, nos diferentes níveis de ploidia, os parâmetros diâmetro dos grãos de pólen e tamanho dos ...
Solange Bosio Tedesco   +2 more
doaj   +1 more source

Cytological and Molecular Characterization for Ploidy Determination in Yams (Dioscorea spp.)

open access: yesAgronomy, 2021
Yam (Dioscorea spp.) is a monocotyledonous herbaceous vine plant grown in the tropics and subtropics. It is a multi-species plant with varied intra- and interspecific ploidy levels.
Cobes Gatarira   +14 more
doaj   +1 more source

Phylogenetic relationships in Betula (Betulaceae) based on AFLP markers [PDF]

open access: yes, 2008
The genus Betula comprises various species in boreal and temperate climate zones of the Northern Hemisphere. The taxonomy of Betula is controversial and complicated by parallel evolution of morphological traits, polyploidization events, and extensive ...
Gilissen, L.J.W.J.   +4 more
core   +2 more sources

Linkage Analysis and Haplotype Phasing in Experimental Autopolyploid Populations with High Ploidy Level Using Hidden Markov Models

open access: yesG3: Genes, Genomes, Genetics, 2018
Modern SNP genotyping technologies allow measurement of the relative abundance of different alleles for a given locus and consequently estimation of their allele dosage, opening a new road for genetic studies in autopolyploids.
M. Mollinari, A. Garcia
semanticscholar   +1 more source

nQuire: a statistical framework for ploidy estimation using next generation sequencing

open access: yesBMC Bioinformatics, 2017
Intraspecific variation in ploidy occurs in a wide range of species including pathogenic and nonpathogenic eukaryotes such as yeasts and oomycetes. Ploidy can be inferred indirectly - without measuring DNA content - from experiments using next-generation
Clemens L. Weiß   +4 more
semanticscholar   +1 more source

Higher ploidy coincides with inferior performance and no difference in drought tolerance in a mesocosm experiment with common reed (Phragmites australis)

open access: yesEnvironmental and Experimental Botany
Climate change leads to more extreme weather events. Therefore, high stress tolerance is becoming increasingly critical for plants. A higher ploidy level has been reported to lead to higher stress tolerance in plants.
Kerstin Haldan   +9 more
doaj   +1 more source

Problems associated with the use of Heliantbus species for the breeding of the cultivated sunflower: Ploidy level or phylogenetic distance? [PDF]

open access: yesSelekcija i Semenarstvo, 2000
Of the 49 species that comprise the genus Helianthus, 42 are present in the wild species collection at the Institute of Field and Vegetable Crops. This is a rich bank of desirable genes for sunflower breeders.
Atlagić Jovanka, Škorić Dragan
doaj  

The microgeographical patterns of morphological and molecular variation of a mixed ploidy population in the species complex Actinidia chinensis. [PDF]

open access: yesPLoS ONE, 2015
Polyploidy and hybridization are thought to have significant impacts on both the evolution and diversification of the genus Actinidia, but the structure and patterns of morphology and molecular diversity relating to ploidy variation of wild Actinidia ...
Yifei Liu   +3 more
doaj   +1 more source

Variation of specific morphological traits and ploidy level of five "aegilops" l. species in Morocco [PDF]

open access: yes, 2003
Variation of specific morphological traits and ploidy level of five Aegilops L. species in Morocco.The genus Aegilops L. represents an important natural source of useful genes for wheat breeding, with particular emphasis on biotic and abiotic stress ...
Assali, Nourredine   +2 more
core   +4 more sources

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