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Related Experiment Videos

Spontaneous polyploidization in cucumber.

Axel O Ramírez-Madera1, Nathan D Miller2, Edgar P Spalding2

  • 1Department of Horticulture, University of Wisconsin, 1575 Linden Drive, Madison, WI, 53706, USA.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
|April 15, 2017
PubMed
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Spontaneous polyploidy occurs in 2.2% of cucumber plants, a dynamic process involving endoreduplication. Growers should identify and remove polyploid cucumber plants based on physical traits to avoid crop issues.

Area of Science:

  • Plant Science
  • Genetics
  • Agriculture

Background:

  • Spontaneous polyploidy in cucumber can lead to misshapen fruits and non-viable seeds, posing challenges for growers.
  • Previous estimations of polyploidy frequency in cucumber were lacking.

Purpose of the Study:

  • To quantitatively estimate the frequency of spontaneous polyploidy in cucumber.
  • To investigate the process of polyploidization in cucumber plants.

Main Methods:

  • Cucumber seeds from recombinant inbred lines were grown in field and greenhouse environments.
  • Flow cytometry was utilized to determine plant ploidy levels.
  • Analysis included assessment of mosaic and chimeric ploidy within plants.

Main Results:

Related Experiment Videos

  • A spontaneous polyploidy frequency of 2.2% was detected in 1422 greenhouse-grown cucumber plants.
  • Polyploidization was observed as an ongoing process, with evidence of endoreduplication and polysomaty.
  • Plant stature and leaf serration were identified as potential visual indicators for identifying polyploid plants.

Conclusions:

  • This study provides the first quantitative data on spontaneous polyploidy in cucumber.
  • Polyploidization is a dynamic, ongoing process in cucumber, influenced by the seed production environment.
  • Visual inspection of plant stature and leaf serration is recommended for rogueing polyploid cucumber plants.