Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences, Lublin, Poland.
Department of Plant Genetics, Breeding and Biotechnology, West Pomeranian University of Technology, Szczecin, Poland.
PLoS One. 2020 Mar 2;15(3):e0229564. doi: 10.1371/journal.pone.0229564. eCollection 2020.
The introduction of high-yielding semi-dwarf varieties of wheat into cultivation has led to a "green revolution." This has required intensive research into various sources of dwarfism in wheat. However, there has been very little advancement in research on dwarfing genes in rye in comparison to wheat or barley. So far, three dominant dwarfing genes (Ddw1, Ddw3, and Ddw4) and three recessive genes (ct1, ct2, and np) have been characterized and precisely mapped in rye. There is no complete catalog of dwarfing genes available in rye. This paper presents an identification of the source of dwarfism and preliminary characterization of the new recessive gene dw9 from the BK-1 line. The gene was mapped on the long arm of the 6R chromosome and belongs to the GA-insensitive group. The initial characterization of the influence of this gene on morphological traits shows that it significantly affects the decrease of yielding trait parameters. A full evaluation can be performed after detailed breeding studies.
高产半矮秆小麦品种的引入引发了“绿色革命”。这需要对小麦各种矮化源进行深入研究。然而，与小麦或大麦相比，黑麦中矮化基因的研究进展甚微。迄今为止，已在黑麦中鉴定出三个显性矮化基因（Ddw1、Ddw3 和 Ddw4）和三个隐性基因（ct1、ct2 和 np），并对其进行了精确定位。黑麦中没有完整的矮化基因目录。本文介绍了从 BK-1 系中鉴定出的矮化基因 dw9 的来源，并对其进行了初步鉴定。该基因位于 6R 染色体的长臂上，属于 GA 不敏感组。对该基因对形态特征影响的初步表征表明，它显著影响了产量性状参数的降低。经过详细的育种研究后，可以进行全面评估。
