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the claim

Species change their chromosome number through chromosome fusion, fission, and whole-genome duplication.

the verdict
INSUFFICIENT LEANING
Recorded sources
10 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that species change their chromosome number through chromosome fusion, fission, and whole-genome duplication?

Unclear. Several sources state that whole-genome duplication and chromosome fission and fusion are mechanisms of chromosome number change, but each does so for a particular group (yeasts, Allium, Cyperales, Vicia faba) or as a general review framed around plants, so the evidence covers the claim only in part.

Verdict: PARTIAL LEAN · 10 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 10
Gene duplication
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Gene duplication. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Gene_duplication

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More for · 9
Alteration of basic chromosome number by fusion–fission cycles
1995
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Schubert, I., Rieger, R., & Fuchs, J. (1995). Alteration of basic chromosome number by fusion–fission cycles. doi.org. https://doi.org/10.1139/g95-170

Chromosome and gene copy number variation allow major structural change between species and strains of Leishmania
2011
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Chromosome and gene copy number variation allow major structural change between species and strains of Leishmania. (2011). doi.org. https://doi.org/10.1101/gr.122945.111

Physical chromosomal mapping of major ribosomal genes in 15 ant species with a review of hypotheses regarding evolution of the number and position of NORs in ants
2024
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Santos, D. M. T. d., Amaro, T. G., & Castro, F. P. (2024). Physical chromosomal mapping of major ribosomal genes in 15 ant species with a review of hypotheses regarding evolution of the number and position of NORs in ants. zenodo.org. https://doi.org/10.3897/compcytogen.18.125235

Mechanisms of Chromosome Number Evolution in Yeast | PLOS Genetics
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Mechanisms of Chromosome Number Evolution in Yeast | PLOS Genetics. (n.d.). journals.plos.org. https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1002190

Evolution of Chromosome Number in Wild Onions ( Allium , Amaryllidaceae)
2022
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Evolution of Chromosome Number in Wild Onions ( Allium , Amaryllidaceae). (2022). doi.org. https://doi.org/10.1600/036364422x16512564801678

The Evolution of Chromosome Numbers: Mechanistic Models and Experimental Approaches -
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The Evolution of Chromosome Numbers: Mechanistic Models and Experimental Approaches - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1093/gbe/evaa220

Chromosome Evolution in Cyperales
2007
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Chromosome Evolution in Cyperales. (2007). doi.org. https://doi.org/10.5642/aliso.20072301.08

Evolution of chromosome number in wild onions (Allium, Amaryllidaceae)
2021
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Evolution of chromosome number in wild onions (Allium, Amaryllidaceae). (2021). doi.org. https://doi.org/10.5061/dryad.dv41ns1z8

Evolution of chromosome number in wild onions (Allium, Amaryllidaceae)
2021
Get citation
Courtney, B. & Charles, B. (2021). Evolution of chromosome number in wild onions (Allium, Amaryllidaceae). zenodo.org. https://doi.org/10.5061/dryad.dv41ns1z8

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