Cytological analysis of distant hybrids of the soft wheat
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Keywords:
interspecific hybrids, cytological analysis, meiosis, chromosomeAbstract
Interspecific hybrids with different number of chromosomes in meiosis were obtained during the analysis of 4 interspecific hybrids combination BC1 (Nadezhda x T. timophevii) Triticum (T.) Nadezhda; (К-2780 х T. timophevii) х К-2780; (T.dicoccum х Kokbidai) х Kokbidai; (К-2780 х T. timophevii) х К-2780, derived from crosses of soft wheat varieties with wild wheat species of Т. timopheevii, T.dicoccum and hexaploid T. kiharae. From one to six reconstructions were revealed in the karyotypes of interspecific hybrids. In accordance with the mechanisms of emergence they can be divided into pycnosis, translocations asynapsis, di-and tricentric bridges.References
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2. Zhirov Е.G., Ternovskaya Т.К., Bessarab К.S. Smeshivaniye genomov v tribe Triticinae genomov D myagkoi pshenicy i genomov pyreya // Citologiya i genetica. –1990. – Vol. 24, No. 4. – P. 98-125.
3. Riley R., Chapman V., Johnson R. Introduction of yellow rust resistance of aegilops comosa into wheat by genetically induced homologous recombination // Nature. – 1968. – Vol. 217, No. 5126. – P. 383-384.
4. Fedotova V.D., Doval S.F. Cytogenetic and morphological study of alleoplasmic lines of soft wheat with alien cytoplasm // Cereal. Res. Commun. – 1996. –Vol. 24, No. 3. – P. 265-266.
5. Udolskaya N.L., Shulembayeva К.К. Stabilizaciya meioza v processe sozdaniya serii monosomnyh linii pshenicy sorta Kazakhstanskaya 126 // Selskohozyaistvennaya biologiya. – 1983. – No. 9. – P. 14.17.
6. Shnaider Т.М. Meioz u mezhvidovyh pentaploidnyh i tetraploidnyh gibridov pshenicy F1 //
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10. Sears E.R. The aneuploides of soft wheat // Mis. Agric. Exptl Stat. Res. Bull. – 1954. – No. 572.– P.1-58.
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Tokubayeva А. А., K. K. Shulembaeva, and A. B. Zhanayeva. 2013. “Cytological Analysis of Distant Hybrids of the Soft Wheat”. International Journal of Biology and Chemistry 6 (2):26-29. https://ijbch.kaznu.kz/index.php/kaznu/article/view/95.
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