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Bermudagrass (Cynodon spp.).

Yaxin Ge1, Zeng-Yu Wang

  • 1Forage Improvement Division, The Samuel Roberts Noble Foundation, Ardmore, OK, USA.

Methods in Molecular Biology (Clifton, N.J.)
|October 13, 2006
PubMed
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This study presents a fast Agrobacterium-mediated transformation protocol for bermudagrass. It bypasses callus formation, enabling rapid generation of transgenic plants for forage and turf applications.

Area of Science:

  • Plant Biotechnology
  • Genetics
  • Agronomy

Background:

  • Bermudagrass is a key warm-season crop in the southern US, vital for forage and turf.
  • Efficient genetic modification of bermudagrass is crucial for crop improvement.

Purpose of the Study:

  • To develop a rapid and efficient protocol for generating transgenic bermudagrass plants.
  • To bypass the traditional callus formation phase in bermudagrass transformation.

Main Methods:

  • Agrobacterium tumefaciens-mediated transformation of stolon nodes using pCAMBIA binary vectors.
  • Utilizing hygromycin phosphotransferase gene (hph) as a selectable marker with hygromycin selection.
  • Direct regeneration of green shoots from infected stolon nodes.

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Main Results:

  • Transgenic shoots were directly produced from infected stolon nodes within 4-5 weeks of selection.
  • The protocol successfully generated well-rooted transgenic plantlets in 7 weeks.
  • Greenhouse-ready transgenic plants were obtained in just 9 weeks.

Conclusions:

  • This protocol offers a significantly faster method for producing transgenic bermudagrass.
  • The elimination of the callus phase streamlines the transformation process, reducing overall time.
  • This method facilitates efficient genetic engineering of bermudagrass for agricultural and horticultural purposes.