Variation of wheatgrass chromosomes in wheat-wheatgrass alien addition line"TAI-27"revealed by fluorescence in situ hybridization(FISH)

作     者：HAN Fangpu ZHANG Xiangqi BUXiuling HE Mengyuan HAO Shui MA Youzhi XIN Zhiyong 韩方普;张相歧;卜秀玲;何孟元;郝水;马有志;辛志勇

作者机构：Institute of Genetics and CytobgyNortheast Noma1 UniversityChangchun 130024China Institute of Crop Breeding and CultivationChinese Academy of Agricultural SciencesCrop Geneties and BreedingMinistry of Agriculture Key LaboratoryBeijing 100081China 

出 版 物：《Science China(Life Sciences)》 (中国科学(生命科学英文版))

年 卷 期：1998年第41卷第4期

页      面：367-371,449页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

主　　题：wheat wheatgrass alien addition line alien addition substitution line fluorescence in situ hybridization(FISH) 

摘      要：The karyotype of the primary wheat wheatgrass alien addition line TAI 27 was 2 n=44 in which all of the chromosomes were metacentric and ***,in the progeny of TAI 27 a pair of chromosomes had become small chromosomes in the two morphologically different *** in situ hybridization(FISH)technique was used to analyze the two different *** observations indicate that a pair of small chromosomes in one variation line are from *** another variation line,a pair of small chromosomes are also from wheatgrass,while another pair of wheatgrass chromosomes have substituted the wheat *** 27 and its variant lines showed a high level of resistance to barley yellow dwarf virus(BYDV).The possible explanation for such a variation and the potential use of the variant lines were discussed briefly.