Production of Doubled Haploid Transgenic Wheat (Triticum aestivum L.) - Liu, Weiguo
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Production of transgenic wheat with desired traits is of great importance. The efficiency in obtaining transgenic wheat plants is low and labor intensive, and it may take years to obtain the desired homozygous transgenic plant in the desired genotypic background. This work describes a microspore transformation method for the production of large number of homozygous doubled haploid transgenic wheat in one generation. In the first part of this work, optimal conditions for generating large numbers of DH wheat plants from microspores were identified. In the second part of this work, microspores…mehr

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Produktbeschreibung
Production of transgenic wheat with desired traits is of great importance. The efficiency in obtaining transgenic wheat plants is low and labor intensive, and it may take years to obtain the desired homozygous transgenic plant in the desired genotypic background. This work describes a microspore transformation method for the production of large number of homozygous doubled haploid transgenic wheat in one generation. In the first part of this work, optimal conditions for generating large numbers of DH wheat plants from microspores were identified. In the second part of this work, microspores were transformed by co-cultivation with Agrobacterium tumefaciens. PCR, DNA sequencing, Southern blot analyses and assay of the recombinant enzyme confirmed the presence of transgenes in T0 primary transformants and their stable inheritance in homozygous T1 DH progenies. Several factors for successful transformation were identified. The method described and conditions worked out in this work are likely to be applicable to other plant species, and should be especially useful to professionals in universities, research institutions and agricultural industry.
Autorenporträt
Weiguo Liu received a Ph.D. in Crop Science from Washington State University, USA. He has been engaged in the doubled haploid research and production with cereal crops in the seed industry since 1997. Weiguo was born in Zaoyang, China and became a naturalized United States citizen in 2008. He currently lives in Ewa Beach, Hawaii.