ISSN 0564-3783  



Main page
Contacts
Themes
Contents  
Themes
Subscription
Information to authors
Editorial board
Mobile version


In Russian

Export citations
UNIMARC
BibTeX
RIS





Cytogenetic study of an interspecific hybrid Helianthus praecox x H. annuus, its parental forms and two backcrosses

Yushkina L.L., Nesterova E.V., Kirichenko V.V., Dolgova T.A., Popov V.N.

 


[Free Full Text (pdf)]Article Free Full Text (pdf)  

Meiosis of wild species (H. praecox) and cultivated sunflower (H. annuus), their F1 interspecific hybrid as well as two backcross generations has been studied. A low level of chromosomal abnormalities in the parents was detected. Interspecific hybridization between the wild and cultivated samples has led to a considerable (50 %) increase of meiosis abnormalities in sunflower pollen mother cells. Backcrossing of hybrids by cultivated sunflower decreased the chromosomal abnormalities level to 12,8 % in BC1 and 9,6 % in BC2.Cytological stability of plants restored in BC2 only.

Tsitologiya i Genetika 2009, vol. 43, no. 1, pp. 42-47



Yushkina L.L., Nesterova E.V., Kirichenko V.V., Dolgova T.A., Popov V.N. Cytogenetic study of an interspecific hybrid Helianthus praecox x H. annuus, its parental forms and two backcrosses, Tsitol Genet., 2009, vol. 43, no. 1, pp. 42-47.




Copyright© ICBGE 2002-2019 Coded & Designed by Volodymyr Duplij Modified 13.12.19