摘要
分析了几种野生稻种及栽培稻品种随体染色体的数目，发现不同染色体组型的稻种之间随体染色体数目有一定差异，其中染色体组ＡＡ的有１～２对，随体染色体因品种或样本的来源而异，染色体组ＢＢ的有３对随体染色体，染色体组ＣＣ的有２对随体染色体，染色体组型为ＢＢＣＣ的Ｏｒｙｚａｍｉｎｕｔａ可能有４对随体染色体，而染色体组型为ＣＣＤＤ的Ｏ．ｌａｔｉｆｏｒｉａ则有２对随体染色体。在栽培稻中，不同品种之间随体染色体的数目也存在差异，一般而言，籼稻品种具有两对随体染色体，分别为第１０和第１２染色体，粳稻品种只有一时随体染色体，为第１０染色体。
The number of SAT-chromosome of some species or varieties in rice has been studied. It is found that there are some differences in SAT-chromosome number among different rice genomes, i. e. A. with 1 - 2 pairs, BB with 3 pairs, CC with 2 pairs, BBCC with 4 pairs and CCDD with 2 pairs. There are also differences among different varieties of O. sativa. Generally speaking, there are two pairs of SAT- chromosomes in indica rice, i. e. chromosome 10 and 12. But there is only one pair of SAT-chromosome in japonica rice, i. e. chromosome 10.
基金
国家自然科学基金
