小麦与中间鹅冠草杂交可孕性及其杂种细胞学研究

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引言在小麦遗传及育种研究中,远缘杂交具有很重要的地位。这主要是由于普通小麦(T.aeslivum L.)是一种多倍体植物,属内及属间亲缘种很为丰富。中间鹅冠草[A.intermedium(Host.)Beauv.]是一种六倍体种(2n=42),包含有E_1、E_2和Z_1三个染色体组,由于它易于同小麦杂交并可作为许多重要抗性的供源而早已被人们所注意。我国自苏联引进中间鹅冠草(又称天蓝冰草 Introduction In the research of wheat genetics and breeding, distant hybridization has a very important position. This is mainly due to the fact that T. aeslivum L. is a polyploid plant that is abundant within and between genera. The middle A. prostmedium (Host.) Beauv. Is a hexaploid species (2n = 42) that contains three chromosomal groups E_1, E_2 and Z_1 because it is easy to cross with wheat and can be used as many The source of important resistance has long been noted. China introduced from the Soviet Union middle goose grass (also known as sky blue grass
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