The Advantages of Polyploidy ... A tetraploid, for example, cross of AAAA and A’A’A’A’ would result in a genotypic ratio of 1:32:1 (Stebbins, 1947). Heterozygotes offer many advantages including buffering effects, protection from inbreeding depression, and the unidirectional introgression phenomenon (Soltis and...
www.as.wvu.edu/~kgarbutt/QuantGen/Gen535_2_2004/Ferns.h... www.as.wvu.edu/~kgarbutt/QuantGen/Gen535_2_2004/Ferns.htm
The evidence that has emerged from genome analyses also indicates that many other eukaryotic genomes have a polyploid ancestry, suggesting that both humans and most other eukaryotes have either benefited from or endured polyploidy. ... Here, I consider the advantages and challenges of polyploidy, and its evolutionary potential.
www.tripdatabase.com/doc/445865-The-advantages-and-disa... www.tripdatabase.com/doc/445865-The-advantages-and-disadvantages-of-being-polyploid-
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www.nature.com/nrg/journal/v6/n11/execsumm/nrg1711.html
Polyploid organisms contain two or more sets of chromosomes. Many of the plants we eat are polyploids, such as some varieties of wheat and strawberries. ... Advantages of Polyploidy...
www.nature.com/scitable/topicpage/Polyploidy-1552814 www.nature.com/scitable/topicpage/Polyploidy-1552814
nrg1105-comai.indd (PDF File)
In this review I discuss possible advantages of polyploidy and constraints on polyploid formation that are indicated by either experimental evidence or theoretical considerations. Becoming and remaining polyploid changes the organization and function of the genome at both genetic and EPIGENETIC levels.
courseweb.edteched.uottawa.ca/Bio4144/Polyploids.pdf courseweb.edteched.uottawa.ca/Bio4144/Polyploids.pdf
Polyploidy – Ecological Aspects; • Major role in plant evolution; 1. ... • The high incidence of allopolyploidy = evidence of its advantages; • Indications that polyploids tend to be more more wide-ranging; • e.g., Gilia incospicua complex Jo-Ann Ordano © California; Academy of Sciences;
aknhp.uaa.alaska.edu/staff_home_pages/MattCarlson/SYS%2... aknhp.uaa.alaska.edu/staff_home_pages/MattCarlson/SYS%20BOT%20Lectures/Lecture%2013%20-%20Polyploidy%20Ecological%20Aspects.pdf
The wide distribution of polyploidy among plants has led to a variety of theories for the evolutionary advantages of polyploidy. Here we claim that the abundance of polyploidy may be the result of a simple ratcheting process that does not require evolutionary advantages due to the biological properties of organisms.
www.citeulike.org/user/timflutre/article/1651899
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
It has even been proposed that the diploid vertebrate genomes were derived by reduction from polyploids [1]. The advantages and disadvantages of being polyploid have recently been reviewed [2], [3]. In short, the advantages of polyploidy are heterosis (hybrid vigour, an increased perfomance of the allopolyploid...
www.plosone.org/article/info:doi/10.1371/journal.pone.0... www.plosone.org/article/info:doi/10.1371/journal.pone.0000092
"The fact that polyploidy seems to have no effect on diversification rates should reduce the number of enthusiastic commentaries about the 'advantages of polyploidy,'" said IU Bloomington evolutionary biologist and paper coauthor Loren Rieseberg, who supervised the research.
sciencecodex.com/biologists_say_polyploidy_plays_bigger... sciencecodex.com/biologists_say_polyploidy_plays_bigger_role_in_plant_evolution_than_previously_thought