Centric fusion between nonhomologous rye chromosomes in wheat

1985 ◽  
Vol 27 (6) ◽  
pp. 627-632 ◽  
Author(s):  
P. A. Davies ◽  
M. A. Pallotta ◽  
C. J. Driscoll

The frequency of centric fusion has been compared in three wheat–rye double monosomic addition lines. In one plant, designated plant A, both monosomes were bibrachial. In the second plant, B, one monosome was bibrachial and one telocentric. In the remaining plant, C, both monosomes were telocentric. Rye centric fusion chromosomes were identified in the progeny by C-banding mitotic root-tip chromosomes and electrophoresis of endosperm storage protein. Four of 97 analyzed progeny of plant A and 4 of 96 analyzed progeny of plant B possessed centric fusion chromosomes. In contrast, none of the 492 progeny of plant C possessed centric fusion chromosomes. The data indicate that at least one bibrachial monosome is necessary for the efficient production of centric fusion chromosomes.Key words: centric fusion, centromeric misdivision, monosomes.

PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e70483 ◽  
Author(s):  
Shulan Fu ◽  
Manyu Yang ◽  
Yunyan Fei ◽  
Feiquan Tan ◽  
Zhenglong Ren ◽  
...  

2003 ◽  
Vol 122 (5) ◽  
pp. 450-452 ◽  
Author(s):  
Y. Kaneko ◽  
S. W. Bang ◽  
J. Torii-Abe ◽  
R. B. Eduardo ◽  
Y. Matsuzawa ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. e54057 ◽  
Author(s):  
Shulan Fu ◽  
Chuanfei Sun ◽  
Manyu Yang ◽  
Yunyan Fei ◽  
Feiqun Tan ◽  
...  

Genome ◽  
2016 ◽  
Vol 59 (3) ◽  
pp. 159-165 ◽  
Author(s):  
Ling Qiu ◽  
Zong-xiang Tang ◽  
Meng Li ◽  
Shu-lan Fu

PCR-based rye (Secale cereale L.) chromosome-specific markers can contribute to the effective utilization of elite genes of rye in wheat (Triticum aestivum L.) breeding programs. In the present study, 578 new PCR-based rye-specific markers have been developed by using specific length amplified fragment sequencing (SLAF-seq) technology, and 76 markers displayed different polymorphism among rye Kustro, Imperial, and King II. A total of 427 and 387 markers were, respectively, located on individual chromosomes and chromosome arms of Kustro by using a set of wheat–rye monosomic addition lines and 13 monotelosomic addition lines, which were derived from T. aestivum L. ‘Mianyang11’ × S. cereale L. ‘Kustro’. In addition, two sets of wheat–rye disomic addition lines, which were derived from T. aestivum L. var. Chinese Spring × S. cereale L. var. Imperial and T. aestivum L. ‘Holdfast’ × S. cereale L. var. King II, were used to test the chromosomal specificity of the 427 markers. The chromosomal locations of 281 markers were consistent among the three sets of wheat–rye addition lines. The markers developed in this study can be used to identify a given segment of rye chromosomes in wheat background and accelerate the utilization of elite genes on rye chromosomes in wheat breeding programs.


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