Variation of the wheatgrass chromosomes in wheat-wheatgrass disomic addition line TAI-14 revealed by fluorescence in situ hybridization
文献类型: 外文期刊
第一作者: Han, FP
作者: Han, FP;He, MY;Hao, S;Ma, YZ;Xin, ZY
作者机构:
关键词: common wheat;wheatgrass;ditelocentric alien addition line;fluorescence in situ hybridization
期刊名称:ACTA BOTANICA SINICA ( 影响因子:0.599; )
ISSN: 0577-7496
年卷期: 1998 年 40 卷 1 期
页码:
收录情况: SCI
摘要: The karyotype of the primary wheat-wheatgrass disomic addition line TAI-14 nas 2n = 44 in which all of the chromosomes were metacentric and submetacentric. However, in the progeny of the TAI-14, a pair of telocentric chromosomes were observed. In order to clarify whether the telocentric chromosomes were of common wheat or of wheatgrass, the fluorescence in situ hybridization (FISH) technique was employed. It was revealed that the wheat chromosomes exhibited red fluorescence while the ditelocentric chromosomes green fluorescence. Therefore, the primary TAI-14 was conversed from the disomic addition line into the ditelocentric addition line. The possible explanation for such a variation and the potential significance of the ditelocentric addition line were discussed briefly.
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