Autori: Matilda Ciuca, Constantina Banica, Monica David, N. N. Saulescu
Editorial: Romanian Agricultural Research, 27, p.1-5, 2010.
Sixty two doubled haploid (DH) lines from the cross between cultivars Izvor (high osmotic adjustment) and Jiana (medium osmotic adjustment), obtained using the „Zea system”, were used to study the association between the capacity for osmotic adjustment, as estimated by the pollen grain test developed by Morgan (1999), and several SSR markers located on chromosome 7A. SSR m arkers Xwmc9, Xwmc596 and Xwmc603 were significantly associated with pollen grain response to immersion in solution of 55% PEG + KCl, being located at approximately 9.1 cM estimated distance from the osmotic adjustment gene. These markers, which had a relatively low recombination frequency with the osmotic adjustment locus, can prove useful for increasing the frequency of progenies with better performance under drought in a wheat breeding program.
Cuvinte cheie: wheat, SSR markers, osmotic adjustment, drought resistance