The Distant hybridization technology of wheat×maize system and application evaluation of haploid breeding | 小麦×玉米远缘杂交技术以及在单倍体育种上的应用评价
2011
Chen Shuping, Hebei Academy of Agricultural and Forestry Sciences,Hengshui(China),Dryland Farming Institute | Wang Xuezheng, Hebei Academy of Agricultural and Forestry Sciences,Hengshui(China),Dryland Farming Institute | Tang Huaijun, Hebei Academy of Agricultural and Forestry Sciences,Hengshui(China),Dryland Farming Institute
Китайский. 摘 要：为了提高小麦作物育种选择的精确性和效率,应用小麦亲本杂交后代F1（或F2）代与玉米进行远缘杂交,经激素诱导和组织培养形成单倍体胚及植株,加倍单倍体（DH）育种结合分子标记和性状表达,达到了单代纯化培育小麦新品系的生产能力;本文阐述了小麦×玉米远缘杂交发展进程,分析了小麦×玉米远缘杂交较孤雄生殖、球茎大麦技术等具备的优势特点,探讨了提高单倍体胚、单倍体植株产生频率以及染色体加倍效率的途径,展望了小麦×玉米杂交组合对于未来高效改进小麦育种程序具有的巨大潜力和发展前景。
Показать больше [+] Меньше [-]Английский. In order to increase the precision and efficacy of selection process in crop breeding,the distant hybridization between wheat filial generation of F1（or F2） and Maize intergeneric crosses is applied,after auxin 2,4-D induction and tissue culture,polyhaploid embryo and plant have developed,The use of dihaploid（DH） technology combining with molecular marker-assisted selection（MAS） and trait expression greatly enhances the production of complete homozygous wheat lines in a single generation;In this paper,we try to elucidate the methods available for haploid production,reveal the superiority of wheat×maize system of crosses over Androgenesis and Bulbosum techniques,research the strategic on enhancement of embryo formation,green polyhaploid plant regeneration and doubled haploid,look ahead the potentiality and the prospect of wheat×maize system of crosses for improving the efficiency of future wheat breeding program.
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