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Position: Home > Articles > Karyotype Analysis of Two Wheat Intergeneric Hybrids and Three Parents Chinese Agricultural Science Bulletin 2007,23 (6) 238-244

小麦属2个种间杂种及3个亲本的核型分析

作  者:
张新玲;石书兵;刘俊;张建立;古丽杰米拉
单  位:
新疆农业大学科学技术学院;新疆农业大学农学院
关键词:
小麦属;种间杂种;亲本;核型
摘  要:
【研究目的】本研究旨在通过细胞学鉴定判断小麦属2个种间杂种的真实性,了解其亲本的染色体组及倍数性;【方法】本试验采用了常规染色体组型分析方法;【结果】分析和报道了小麦属2个种间杂种及其3个亲本的核型,根据核型分析的有关参数,阐明了两个杂种1894×Ps5、新7×Ps5及其亲本新7、1894和Ps5的核型特征,其核型分别为:新7(2n=6x=42):2M+12sm+28m(2SAT)(2B),1894(2n=6x=42):2M+20sm+18m(2SAT)+2st(2B),Ps5(2n=4x=28):2M+12sm(2SAT)+12m+2st(2B),1894×Ps5(2n=5x=35):2M+19m+12sm+2st(2B),新7×Ps5(2n=5x=35):1M+21m+13sm(2B);【结论】由此鉴定了2个杂种的真实性--均为真杂种,并确认了亲本新7和1894的第一套和第二套染色体均分别为A组和B组,倍数性均为6x,它们的第三套染色体属什么染色体组有待进一步研究。
译  名:
Karyotype Analysis of Two Wheat Intergeneric Hybrids and Three Parents
作  者:
Zhang Xinling1, Shi Shubing2, Liu Jun2,3, Zhang Jianli2,4, Gu Lijiemila2 (1College of science and technology, Xinjiang Agricultural University, Urumqi 830052; 2College of agronomy, Xinjiang Agricultural University, Urumqi 830052; 3Xinjiang petroleum bureau, Kelamayi 834000; 4Xinjiang grassland general station, Urumqi 830049)
关键词:
Triticum, Intergeneric hybrids, Parents, Karyotype
摘  要:
[OBJECTIVE] Our objective was to study the truth of hybrids were identified by cytology authentication and Genomens of chromosome and their ploidy. [METHOD] The experiment was conducted with normal Genomens chromosome analysis.[RESULTS] The karyotype of two interspecific hybrids and their parents of Triticum were analyzed and reported in this paper. The result was that karyotype characteristics of two hybrids 1894×Ps5 and XIN7×Ps5 and their parents were clarified, The karyotype were XIN7(2n=6x=42):2M+12sm+28m(2SAT)(2B)and 1894 (2n=6x=42): 2M+20sm+18m(2SAT)(2B)and Ps5(2n=4x=28): 2M+12sm(2SAT)+12m+2st(2B)and 1894×Ps5(2n=5x=35):2M+19m+12sm+2st(B)and XIN7×Ps5(2n=5X=35):1M+21m+13sm(2B);respectively. [CONCLUSION] the truth of hybrids were identified, the both were true, and the chromosome 1and the chromosome 1 of XIN7 parent and 1894 parent were in A-Genomen and B-Genomen, respectively; their ploidy was 6X. which Genomens chromosome 3 belonged to did not studied.

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