Results 21 to 30 of about 23,545 (244)

Cytotaxonomical aspects of Antarctic mosses, with special reference to the proportion of polyploidy

open access: yesAntarctic Record, 1994
The evolutionary tendency concerning karyological features, especially the proportion of polyploidy and infraspecific polyploidy in Antarctic mosses is reviewed.
Hiroshi Okada, Hiroshi Kanda
doaj   +1 more source

Whole-Genome Doubling as a source of cancer: how, when, where, and why?

open access: yesFrontiers in Cell and Developmental Biology, 2023
Chromosome instability is a well-known hallmark of cancer, leading to increased genetic plasticity of tumoral cells, which favors cancer aggressiveness, and poor prognosis.
Natalia Sanz-Gómez   +3 more
doaj   +1 more source

Evolution by duplication: paleopolyploidy events in plants reconstructed by deciphering the evolutionary history of VOZ transcription factors

open access: yesBMC Plant Biology, 2018
Background Facilitated by the rapid progress of sequencing technology, comparative genomic studies in plants have unveiled recurrent whole genome duplication (i.e. polyploidization) events throughout plant evolution.
Bei Gao   +9 more
doaj   +1 more source

Polyploidy on Islands: Its Emergence and Importance for Diversification

open access: yesFrontiers in Plant Science, 2021
Whole genome duplication or polyploidy is widespread among floras globally, but traditionally has been thought to have played a minor role in the evolution of island biodiversity, based on the low proportion of polyploid taxa present. We investigate five
Heidi M. Meudt   +7 more
doaj   +1 more source

Induced polyploidy deeply influences reproductive life cycles, related phytochemical features, and phytohormonal activities in blackberry species

open access: yesFrontiers in Plant Science, 2022
In some cases, polyploidy is an important phenomenon in the evolution of fruit crops. Polyploidy can be used in fruit breeding programs to develop varieties with higher yields and better fruit quality, as well as better adaptation to adverse ...
Nasrin Sabooni, Ali Gharaghani
doaj   +1 more source

Polyploidy in Amphibia [PDF]

open access: yesCytogenetic and Genome Research, 2015
This review summarizes the current status of the known extant genuine polyploid anuran and urodelan species, as well as spontaneously originated and/or experimentally produced amphibian polyploids. The mechanisms by which polyploids can originate, the meiotic pairing configurations, the diploidization processes operating in polyploid genomes, the ...
Schmid, Michael   +2 more
openaire   +3 more sources

Comparative DNA-methylome and transcriptome analysis reveals heterosis- and polyploidy-associated epigenetic changes in rice

open access: yesCrop Journal, 2023
Heterosis and polyploidy have an overwhelming influence on plant evolution. Recently, polyploid rice hybrids have been used to breed new rice varieties because they combine the advantages of both heterosis and polyploidy.
Xiaolan Rao   +14 more
doaj   +1 more source

Triploid Cyprinid Fish (TCF) Under Aeromonas sp. AS1-4 Infection: Metabolite Characteristics and In Vitro Assessment of Probiotic Potentials of Intestinal Enterobacter Strains

open access: yesBiology
The majority of Aeromonas strains are opportunistic pathogens for both humans and animals, causing a variety of diseases and posing a considerable risk to their health.
Xu-Ying Kuang   +8 more
doaj   +1 more source

Studies on Colchicine Induced Chromosome Doubling for Enhancement of Quality Traits in Ornamental Plants

open access: yesPlants, 2019
Polyploidy has the utmost importance in horticulture for the development of new ornamental varieties with desirable morphological traits referring to plant size and vigor, leaf thickness, larger flowers with thicker petals, intense color of leaves and ...
Ayesha Manzoor   +4 more
doaj   +1 more source

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