Results 11 to 20 of about 30,417 (268)

Polyploidy : methods and protocols

open access: yes, 2023
This volume provides protocols on evidence for polyploidy and how it can be unveiled. Chapters guide readers through evolutionary experiments, measure effects of polyploidy, evidence for (remnants of) ancient WGDs, models of chromosome number evolution ...
Van de Peer, Yves
core   +2 more sources

Focus on polyploidy [PDF]

open access: yesNew Phytologist, 2010
Polyploidy (whole-genome duplication) has played a pervasive role in the evolution of fungi and animals, and is particularly prominent in plants (Wendel & Doyle, 2005; Cui et al., 2006; Otto, 2007; Wood et al., 2009).
Ainouche, Malika   +2 more
core   +6 more sources

Polyploidy in Bryum collected from the Syowa Station area, Antarctica

open access: yesAntarctic Record, 1990
Bryum pseudotriquetrum (HEDW.) GAERTN., MEYER et SCHERB. and B. amblyodon C. MUELL. collected from the Syowa Station area, Antarctica are karyologically studied with particular regard to the polyploidy.
Hiroshi Kanda, Hiroshi Okada
doaj   +2 more sources

Polyploidy Index and Its Implications for the Evolution of Polyploids

open access: yesFrontiers in Genetics, 2019
Polyploidy has contributed to the divergence and domestication of plants; however, estimation of the relative roles that different types of polyploidy have played during evolution has been difficult.
Jinpeng Wang   +43 more
doaj   +2 more sources

Polyploidy [PDF]

open access: yesCurrent Biology, 2015
Polyploidy is defined as an increase in genome DNA content. Throughout the plant and animal kingdoms specific cell types become polyploid as part of their differentiation programs. When this occurs in subsets of tissues within an organism it is termed somatic polyploidy, because it is distinct from the increase in ploidy that is inherited through the ...
Frawley, Laura E., Orr-Weaver, Terry L.
openaire   +2 more sources

Ploidy-Dependent Response to Anticancer Drugs of Human Embryonic Stem Cells. [PDF]

open access: yesCell Prolif
Using isogenic hESCs, differing only in their ploidy level, we show the effect of ploidy on the resistance to anticancer drugs. We demonstrate that polyploidy, by itself, confers sensitivity to chemotherapies, leading to higher apoptosis and delayed proliferation, while the loss of p53 reverses the phenotype, demonstrating higher resistance.
Haim-Abadi G, Benvenisty N.
europepmc   +2 more sources

Polyploidy and the proteome [PDF]

open access: yesBiochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2016
Although major advances have been made during the past 20 years in our understanding of the genetic and genomic consequences of polyploidy, our knowledge of polyploidy and the proteome is in its infancy. One of our goals is to stimulate additional study, particularly broad-scale proteomic analyses of polyploids and their progenitors. Although it may be
Douglas E, Soltis   +4 more
openaire   +2 more sources

Cellular polyploidy in organ homeostasis and regeneration [PDF]

open access: yes, 2022
Polyploid cells, which contain more than one set of chromosome pairs, are very common in nature. Polyploidy can provide cells with several potential benefits over their diploid counterparts, including an increase in cell size, contributing to organ ...
Schiffelers, Raymond   +12 more
core   +1 more source

Chromosomal aberrations in transitional cell carcinoma that are predictive of disease outcome are independent of polyploidy [PDF]

open access: yes, 1999
Objective To determine whether aneusomy for chromosomes 7, 9 and 17 (reported to predict recurrence in up to 65% of patients with superficial transitional cell bladder cancer and thus providing the opportunity for early and effective treatment) reflects ...
Watters, A.D.   +4 more
core   +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

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