▪ Abstract Changes in ploidy occurred early in the diversification of some animal and plant lineages and represent an ongoing phenomenon in others. ... Speciation via polyploidy is likely to be one of the more predominant modes of sympatric speciation in plants, owing to its potentially broad-scale ... rate of evolution...
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arjournals.annualreviews.org/doi/abs/10.1146/annurev.ge...
arjournals.annualreviews.org/doi/abs/10.1146/annurev.genet.34.1.401
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In cases of sympatry of diploids and polyploids of the same species, ... polyploid strains for the ecology, distribution and sympatric speciation .... develop through polyploidy, although its significance for the evolution of this group is undeniable. ... AcknowledgementsThis paper has been supported by grants from ...
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linkinghub.elsevier.com/retrieve/pii/S0038071796000867
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s" ) is more common and occurs through horizontal gene transfer ... At least one recent study provides evidence that sympatric speciation has occurred in Tennessee cave salamanders. A number of models have been proposed to account for this mode of speciation. The most popular, ... , one of the foremost thinkers on evolution,
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www.absoluteastronomy.com/topics/Sympatric_speciation
www.absoluteastronomy.com/topics/Sympatric_speciation
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Polyploidy has long been recognized as a major force in angiosperm evolution. .... may be the single most common mechanism of sympatric speciation in plants." ... Actual WGD events should be far less frequent than particular chromosome numbers ...... Epigenetic phenomena and the evolution of plant allopolyploids. ...
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www.amjbot.org/cgi/content/full/96/1/336
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As triploid individuals, which undergo normal meiosis, can only reproduce through apomixis, ... 2000). Polyploidy is more frequent in plants, and is highly correlated with speciation within the angiosperms (Müntzing, 1936; ... 4), a phenomenon which has furthermore been confirmed by karyological and microsatellite analyses (unpubl. data).
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www.nature.com/hdy/journal/v87/n1/full/6889080a.html
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Hybrid speciation is another impor- tant evolutionary phenomenon. .... genome size evolution in Brassicaceae has been ...... sympatric with C. matthioli. This fact, together ..... Polyploid speciation in Lepidium based on the PI intron gene tree. ..... nied by chromosomal fusions and frequent rearrangements. ...
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www.springerlink.com/index/1450478771R73747.pdf
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is useful in determining the extent to which polyploidy is occurring ... 50. Most speciation is thought to occur: ... zone of speciation.
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www.bios.niu.edu/johns/bios103/103fall04exam4.htm
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actively combs through a population searching for the best combination of genes. ... Darwin's theory of evolution ... Sympatric speciation occurs...
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www.lew-port.com/10712041113402793/lib/1071204111340279...
www.lew-port.com/10712041113402793/lib/10712041113402793/ap_chapters/ap_ch17-21_rev.htm
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The first edition of this most sacred sequence in science has been released by two groups: ... Genes provide the characteristics that distinguish one individual from another and allow these features to be passed from one generation to the next through reproduction, thereby providing the microscopic mechanism for evolution.
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www.jupiterscientific.org/sciinfo/genome.html
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