linkedin post 2017-12-18 05:40:44

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FITNESS ADVANTAGE. "Although we found that autopolyploids and allopolyploids occurred near parity in nature, allopolyploids likely have a significant evolutionary advantage. Autopolyploid plants were probably produced in higher numbers than allopolyploid plants throughout contemporary species’ ranges and over the course of deep time. The differential might have been five-fold or 20-fold." https://lnkd.in/eee56_B View in LinkedIn
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linkedin post 2017-12-20 06:05:23

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COUNTER-ARGUMENTS. "There have also been oppositions to the hypothesis that polyploidy events contribute to diversification. There have been plants (angiosperms, ferns, etc.) that have no evidence of increasing speciation due to polyploidization. It has also been suggested that polyploid lineages will have lower speciation rates that contribute to higher extinction rates in comparison to diploid lineages." https://lnkd.in/etn6Uea View in LinkedIn
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linkedin post 2017-12-20 06:02:47

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RESTRUCTURING GENOME. "Once a WGD has occurred there is swift and extensive restructuring of the genome. The most obvious effect being the changes in chromosome number as well as structure of the chromosomes (through translocations or deletions). The genome restructuring may further enhance changes in phenotype as gene expression and dosage are recalibrated through epigenetic processes." (WGD = whole genome duplication). https://lnkd.in/etn6Uea View in LinkedIn
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linkedin post 2017-12-20 06:01:10

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POLYPLOIDIZATION. "When combining genetically distinct parents that belong to different species or genera, hybrid offspring contain the genetic material of both parents. These hybrid offspring contain twice the number of genes and other genomic structures found in the parent taxa and the two genomes must work together." https://lnkd.in/etn6Uea View in LinkedIn
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linkedin post 2017-12-20 05:58:54

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HYBRIDIZATION. "Polyploidization causes a group of genetic changes that include: changes in gene expression, gene loss, epigenetic release of transposons, and morphological and physical changes. This is because when combining genetically distinct parents that belong to different species or genera, hybrid offspring contain the genetic material of both parents." https://lnkd.in/etn6Uea View in LinkedIn
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