Наукові конференції України, Сучасні напрями селекційного удосконалення пшениці

Розмір шрифту: 
MICROSATELLITE LOCI ASSOCIATED WITH PLANT HEIGHT IN UKRAINIAN BREAD WHEAT VARIETIES (TRITICUM AESTIVUM L.)
O. O. Kolesnyk, O. M. Khokhlov, S. V. Chebotar

Остання редакція: 2017-05-28

Тези доповіді


Plant height (PH) is one of the critical traits for the adaptation of bread wheat (Triticum aestivum L.) to diverse climatic environments and the cultivation in various regions and cropping seasons. PH variation in Ukrainian as well as in European wheat cultivars is mainly controlled by the Rht-D1 and Rht-B1 semi-dwarfing genes (Chebotar, 2006; Chebotar et al., 2010), but also by other medium- or small-effect quantitative trait loci (QTL) and potentially epistatic QTL enabling fine adjustments of plant height (Würschum et al., 2015). Other major genes conferring reduced height are Rht8 on 2D (Korzun et al., 1998; Chebotar et al., 2010) and the photoperiod regulator Ppd-1 (Shaw et al., 2012). According to Zanke et al. (2014) a wide range of loci in the genome are available to breeders for modulating PH in wheat. In the study of Bellucci et al. (2015) 6 QTLs for PH were mapped, among which one QTL was previously reported, while the remaining QTLs constituted new genomic regions linked to trait variation.


Full Text: PDF (English)