Morphological, Cytogenetic and Molecular Identification of a New Triticale

Abstract

Rye (Secale cereale) plays an important role in wheat improvement. Here we report a new triticale, named Fenzhi-1, derived from the wide cross MY11 (Triticum aestivum) × Jingzhou (Secale cereale) after the in vitro rye pollen has been irradiated by He-Ne laser. Morphologically, Fenzhi-1 is characterized by branched-spikes. Genetically, Fenzhi-1 displays stable fertility and immunity to wheat powdery mildew and stripe rust. In situ hybridization (FISH) and seed storage protein electrophoresis revealed that Fenzhi-1 is a new primary hexaploid triticale (AABBRR). The present study not only provides a new method to synthesize an artificial species, but also shows that Fenzhi-1 could be a valuable source for wheat improvement.

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Correspondence to Z. J. Yang or Z. L. Ren.

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Zhou, J.P., Yang, Z.J., Feng, J. et al. Morphological, Cytogenetic and Molecular Identification of a New Triticale. CEREAL RESEARCH COMMUNICATIONS 35, 1385–1395 (2007). https://doi.org/10.1556/CRC.35.2007.3.3

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Keywords

  • triticale
  • He-Ne laser
  • in situ hybridization
  • branched-spike