Results 21 to 30 of about 4,591 (253)

Polyploid lineages in the genus Porphyra [PDF]

open access: yes, 2018
Whole genome duplication is now accepted as an important evolutionary force, but the genetic factors and the life history implications affecting the existence and abundance of polyploid lineages within species are still poorly known.
Loureiro, João   +3 more
core   +1 more source

Niche divergence and limits to expansion in the high polyploid Dianthus broteri complex [PDF]

open access: yes, 2019
Niche evolution in plant polyploids remains controversial and evidence for alternative patterns has been reported. Using the autopolyploid Dianthus broteri complex (2×, 4×, 6× and 12×) as a model, we aimed to integrate three scenarios – competitive ...
Balao Robles, Francisco J.   +2 more
core   +1 more source

Intraspecific C-value variation and the outcomes in Psidium cattleyanum Sabine essential oil

open access: yesBrazilian Journal of Biology, 2022
Polyploidy, a numerical alteration of the karyotype, is one of the most important mechanisms in plant speciation and diversification, but could also be detected among populations, the cytotypes.
M. S. Spadeto   +6 more
doaj   +1 more source

Ploidy dynamics and evolvability in fungi [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2016
Rapid responses to acute stresses are essential for stress survival and are critical to the ability of fungal pathogens to adapt to new environments or hosts. The rapid emergence of drug resistance is used as a model for how fungi adapt and survive stress conditions that inhibit the growth of progenitor cells. Aneuploidy and loss of heterozygosity (LOH)
Noa Blutraich Wertheimer   +2 more
openaire   +3 more sources

Intercropping of Cyphomandra betacea with Different Ploidies of Solanum Sect. Solanum (Solanaceae) Wild Vegetables Increase Their Selenium Uptakes

open access: yesPlants, 2023
Selenium (Se) deficiency causes various diseases in humans. Se can be obtained from fruits and vegetables. In this study, the fruit tree Cyphomandra betacea was intercropped with three Solanum sect.
Lijin Lin   +8 more
doaj   +1 more source

Resistance to frost and tuber soft rot in near-pentaploid Solanum tuberosum - S. commersonii hybrids [PDF]

open access: yes, 2007
The objectives of the present study were to evaluate the tolerance to low temperatures and tuber soft rot in sexual near-pentaploid hybrids between incongruent 2x (1EBN) Solanum commersonii (CMM) and 4x (4EBN) S. tuberosum (TBR). For freezing resistance,
AVERSANO, RICCARDO   +5 more
core   +2 more sources

Analysis of DNA Polymerases Reveals Specific Genes Expansion in Leishmania and Trypanosoma spp.

open access: yesFrontiers in Cellular and Infection Microbiology, 2020
Leishmaniasis and trypanosomiasis are largely neglected diseases prevailing in tropical and subtropical conditions. These are an arthropod-borne zoonosis that affects humans and some animals and is caused by infection with protozoan of the genera ...
Ana Poveda   +3 more
doaj   +1 more source

Human megakaryocyte ploidy.

open access: yesHistology and histopathology, 1999
We reviewed the literature concerning the history of determination of the ploidy of human megakaryocytes and its relationship with diseases. The ploidy of rabbit megakaryocytes was analyzed by microspectrophotometry in 1964, and the analysis of the ploidy in human megakaryocytes was first performed in 1968. Presently, microphotometry and flow cytometry
Kobayashi, Y., Kondo, M.
openaire   +3 more sources

Gender and ploidy in cancer survival [PDF]

open access: yesCellular Oncology, 2011
Females carry a better prognosis than men for many cancer types. We hypothesized that chromosomal changes, in particular numerical alterations of the sex chromosomes or the presence of near-triploidy may contribute to these gender differences.To characterize the influence of gender a literature search was performed for survival data of 27 tumor types ...
Susanne Schulze, Iver Petersen
openaire   +2 more sources

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 ...
Yael Aylon, Moshe Oren
openaire   +4 more sources

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