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Genetic Modification of Grapevine Embryogenic Cultures.

S A Dhekney1, S K Sessions2, M Brungart-Rosenberg2

  • 1Department of Plant Sciences, Sheridan Research and Extension Center, University of Wyoming, Sheridan, WY, USA. sdhekney@uwyo.edu.

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|November 12, 2018
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Summary
This summary is machine-generated.

Precision breeding offers targeted grapevine genetic improvement by bypassing meiosis, utilizing the Vitis genome sequence and optimized protocols for efficient gene transfer and plant regeneration.

Keywords:
AgrobacteriumCulture mediumGrowth regulatorsPlant tissue cultureSomatic embryogenesisTransgenesTransgenic plantsVitis

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Area of Science:

  • Plant genetics
  • Biotechnology
  • Agricultural science

Background:

  • Conventional grapevine breeding is hindered by meiosis, which can disrupt desirable genetic traits.
  • Advancements in genomics and biotechnology enable more precise genetic modification techniques.

Purpose of the Study:

  • To describe a protocol for grapevine genetic improvement using precision breeding.
  • To detail the process of generating and transforming embryogenic grapevine cultures.

Main Methods:

  • Grapevine embryogenic cultures were produced from leaf or floral explants.
  • Agrobacterium-mediated transformation was performed on cotyledonary-stage somatic embryos.
  • Selection of transformed embryos was based on anthocyanin production and antibiotic resistance.

Main Results:

  • A reproducible protocol for grapevine embryogenic culture production and transformation was established.
  • Transformed somatic embryos were successfully regenerated into whole plants.
  • Polymerase Chain Reaction (PCR) confirmed the presence of inserted genes in the modified plants.

Conclusions:

  • Precision breeding provides a viable method for targeted genetic improvement in grapevines.
  • The described protocol facilitates efficient genetic modification, bypassing the challenges of conventional breeding.