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[pŏĺē-ploid́]
(adj.)Having one or more extra sets of chromosomes: a polyploid species; a polyploid cell.
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Polyploidy - Wikipedia, the free encyclopedia
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Polyploidy occurs in cells and organisms when there are more than two paired (homologous) sets of chromosomes. Most organisms are normally diploid, meaning they have two sets of chromosomes — one set...
en.wikipedia.org/wiki/Polyploidy
Information | Opinion | Research | Education | Bibliography ... Polyploidy: the condition of having three, four, or more sets of chromosomes instead of the two present in diploids. ... From The Polyploidy Portal...
www.polyploidy.org/ www.polyploidy.org/
While Brassica napus has formed spontaneously in nature, the napus line shown here was generated recently by polyploidy researchers. Allopolyploids often show heterosis (hybrid vigor) relative to their diploid parents and the plants shown here illustrate this.
www.polyploidy.org/index.php/Parade_of_Polyploids www.polyploidy.org/index.php/Parade_of_Polyploids
Polyploidy in plants ... Polyploidy is very common in plants, especially in angiosperms. From 30% to 70% of today's angiosperms are thought to be polyploid. Species of coffee plant with 22, 44, 66, and 88 chromosomes are known. ... Origin of Polyploidy...
users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Polyp... users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Polyploidy.html · Cached
Polyploidy, or whole-genome duplication (WGD), is an evolutionary innovation for all eukaryotes including some animals and many plants. The common occurrence of polyploidy suggests an evolutionary advantage of having multiple sets of genetic material for adaptive evolution.
polyploidy.biosci.utexas.edu/ polyploidy.biosci.utexas.edu/
In 1932, O. HAGERUP succeeded in inducing polyploidy experimentally as a result of a cold shock, but this does nevertheless seem to be an inadequate explanation for the increase in the percentage of polyploid species in cold climates.
www.biologie.uni-hamburg.de/b-online/e37/37d.htm · Cached
Miscellaneous factors promoting polyploidy ... Polyploidy and the evolution of new species ... Before going ahead what is the main significance of polyploidy in brief? As pointed out at the very outset it is recognized as one of the main process in the evolutionary history of plants and to some extent other organisms(14).
www.as.wvu.edu/~kgarbutt/QuantGen/Gen535_2_2004/Polyplo... www.as.wvu.edu/~kgarbutt/QuantGen/Gen535_2_2004/Polyploidy.html · Cached
A look at factors that affect the rate of mutations and an occurrence called polyploidy. ... Polyploidy is responsible for the creation of thousands of species in today's planet, and will continue to do so. It is also responsible for increasing genetic diversity and producing species showing an increase in size,
www.biology-online.org/2/9_mutations.htm · Cached
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