Results 11 to 20 of about 22,407 (233)

Evolutionary Innovation by Polyploidy [PDF]

open access: yesPRX Life, 2022
The preferred conditions for evolutionary innovation are a fundamental question, but little is known, in part because the question involves rare events. We focus on the potential role of polyploidy in the evolution of novel traits. There are two hypotheses regarding the effects of polyploidy on evolution: Polyploidy reduces the effect of a single ...
Tetsuhiro S. Hatakeyama, Ryudo Ohbayashi
openaire   +3 more sources

Creating insect neopolyploid lines to study animal polyploid evolution [PDF]

open access: yesEvolutionary Applications
Whole‐genome duplication (polyploidy) poses many complications but is an important driver for eukaryotic evolution. To experimentally study how many challenges from the cellular (including gene expression) to the life history levels are overcome in ...
Saminathan Sivaprakasham Murugesan   +3 more
doaj   +2 more sources

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   +4 more sources

POInTbrowse: orthology prediction and synteny exploration for paleopolyploid genomes

open access: yesBMC Bioinformatics, 2023
We describe POInTbrowse, a web portal that gives access to the orthology inferences made for polyploid genomes with POInT, the Polyploidy Orthology Inference Tool.
Mustafa Siddiqui, Gavin C. Conant
doaj   +1 more source

The influence of experimentally induced polyploidy on the relationships between endopolyploidy and plant function in Arabidopsis thaliana

open access: yesEcology and Evolution, 2020
Whole genome duplication, leading to polyploidy and endopolyploidy, occurs in all domains and kingdoms and is especially prevalent in vascular plants. Both polyploidy and endopolyploidy increase cell size, but it is unclear whether both processes have ...
Evan K. Pacey   +2 more
doaj   +1 more source

Polyploidy did not predate the evolution of nodulation in all legumes. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: Several lines of evidence indicate that polyploidy occurred by around 54 million years ago, early in the history of legume evolution, but it has not been known whether this event was confined to the papilionoid subfamily (Papilionoideae; e.g.
Steven B Cannon   +6 more
doaj   +1 more source

A Reappraisal of Polyploidy Events in Grasses (Poaceae) in a Rapidly Changing World

open access: yesBiology, 2022
Around 80% of megaflora species became extinct at the Cretaceous–Paleogene (K–Pg) boundary. Subsequent polyploidy events drove the survival of thousands of plant species and played a significant historical role in the development of the most successful ...
Acga Cheng   +5 more
doaj   +1 more source

The role of cellular polyploidy in the regeneration of the cirrhotic liver in rats and humans [PDF]

open access: yesComparative Cytogenetics
Polyploidy is a condition in which a cell has multiple diploid sets of chromosomes. Two forms of polyploidy are known. One of them, generative polyploidy, is characteristic of all cells of the organism, while the other form develops only in some somatic ...
Natalia N. Bezborodkina   +2 more
doaj   +3 more sources

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