Akademik Veri Yönetim Sistemi
Tez Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Çukurova Üniversitesi, Fen Bilimleri Enstitüsü, Biyoteknoloji, Türkiye
Tez Danışmanı: Hakan Özkan
Tezin Onay Tarihi: 2011
Tezin Dili: İngilizce
Desteklendiği Program: Diğer
Özet:
Very little information exists in the literature
concerning the genetic control of quality traits in durum wheat. Most of
studies conducted in durum wheat concern with the yield and agronomic traits.
Therefore to genetically dissect the quantitative trait loci (QTL) for quality
traits in durum wheat is very important to understand their mode of
inheritance. A genetic linkage map was constructed based on recombinant inbred
lines (RIL) derived from cross between Kunduru X Cham1 population. The map
consisted of 396 loci on all chromosomes, which were composed of 213
microsatellite markers, 37 seed storage proteins markers, and 146 AFLPs markers.
This map consisted of 14 linkage groups, spanning to a total of 5033.6 cM.
Eight SSR primers which were unknown of their chromosomal locations were mapped
in different chromosomes in the Kunduru / Cham1 population. Quality traits and QTL analysis were performed for
parameters associated with different quality traits of durum wheat using eight
different environments/locations. The QTL analysis led to the detection of 93 QTLs. Further quality traits were
controlled by at least five or more QTLs, except for ash content, only two
QTLs were observed. Also, several important and novel genomic regions for durum
quality were detected. In addition, some of the QTLs showed pleiotropic effects
for different quality traits.
The QTL analysis
of the different quality traits provided an integrated picture of the genetic
basis of durum wheat quality and generated valuable information for durum wheat
breeding programs. Important QTLs were identified for marker-assisted selection
and are suggested to be used in the durum wheat breeding programs in the
Mediterranean region; this is particularly true for the gluten strength and
yellow pigment.