Interploidy hybridization

Interploidy hybridization is a term to describe a hybridization (or manual cross) between two different individuals of different ploidy levels. Individuals resulting from this type of hybridization are called interploidy hybrids.[1] This phenomenon is often observed in plants. Interploidy hybridizations in angiosperms often cause abnormal seed development, leading to reduced seed size or seed abortion. This reproductive bottle neck leads to a phenomenon called triploid block.[2] In agriculture, development of new plant cultivars, utilizing interploidy hybrids, is usually preceded by interspecific cross between two closely related species with different ploidy levels.

References

Chen, edited by Z. Jeffrey; Birchler, James A. (2013). Polyploid and hybrid genomics. Ames, Iowa: Wiley-Blackwell. ISBN 978-0-470-96037-0.CS1 maint: extra text: authors list (link)
Schatlowski, N.; Kohler, C. (26 October 2012). "Tearing down barriers: understanding the molecular mechanisms of interploidy hybridization". Journal of Experimental Botany. 63 (17): 6059–6067. doi:10.1093/jxb/ers288. PMID 23105129.

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[Chen-1] Chen, edited by Z. Jeffrey; Birchler, James A. (2013). Polyploid and hybrid genomics. Ames, Iowa: Wiley-Blackwell. ISBN 978-0-470-96037-0.CS1 maint: extra text: authors list (link)

[2] Schatlowski, N.; Kohler, C. (26 October 2012). "Tearing down barriers: understanding the molecular mechanisms of interploidy hybridization". Journal of Experimental Botany. 63 (17): 6059–6067. doi:10.1093/jxb/ers288. PMID 23105129.