Polyploidy - Wikipedia
网页Polyploidy is a condition in which the cells of an organism have more than two paired sets of (homologous) chromosomes.
Polyploidy | Definition, Examples, Types, & Facts | Britannica
网页Polyploidy, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. Polyploidy arises as the result of total nondisjunction of chromosomes during mitosis or meiosis. Learn more about polyploidy in this article.
7.4: Polyploidy - Biology LibreTexts
网页2022年5月15日 · Cells (and their owners) are polyploid if they contain more than two haploid (n) sets of chromosomes; that is, their chromosome number is some multiple of n greater than the 2n content of diploid cells. For example, triploid (3n) and tetraploid cell (4n) cells are polyploid.
Polyploidy | Learn Science at Scitable - Nature
网页Polyploidy is the heritable condition of possessing more than two complete sets of chromosomes. Polyploids are common among plants, as well as among certain groups of fish and amphibians....
The advantages and disadvantages of being polyploid
网页2005年10月11日 · Polyploids — organisms that have multiple sets of chromosomes — are common in certain plant and animal taxa, and can be surprisingly stable.
Polyploidy: a biological force from cells to ecosystems
网页Polyploidy (whole-genome duplication; WGD, see glossary), defined as having three or more sets of chromosomes, influences organisms in all clades of eukaryotic life and all levels of biological organization, from genes to cells to entire ecosystems (Fig. 1).
The evolutionary significance of polyploidy - Nature
网页2017年5月15日 · Polyploidy, or the duplication of entire genomes, has been observed in prokaryotic and eukaryotic organisms, and in somatic and germ cells.
Polyploidy: A Biological Force From Cells to Ecosystems - Cell Press
网页2020年7月6日 · Polyploidy [whole-genome duplication (WGD); see Glossary], defined as having three or more sets of chromosomes, influences organisms in all clades of eukaryotic life and all levels of biological organization, from …
Polyploidy as a Fundamental Phenomenon in Evolution, …
网页2022年3月24日 · Polyploidy, which results from whole-genome duplication, is a fundamental complement to vertical copying. Both organismal and cell polyploidy can emerge via premature cell cycle exit or via cell-cell fusion, the latter giving rise to polyploid hybrid organisms and epigenetic hybrids of somatic cells.
Polyploidy: Current Biology - Cell Press
网页2015年5月4日 · Polyploidy is defined as an increase in genome DNA content: in this Primer, Frawley and Orr-Weaver discuss why somatic polyploidy occurs and how cells become polyploid.
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