Evaluation of puroindoline b as a house keeping gene in wild wheat species

2011 ◽  
Vol 22 ◽  
pp. S145
Author(s):  
Erdogan Esref Hakki ◽  
Songul Uygan ◽  
Mehmet Hamurcu ◽  
Sait Gezgin ◽  
Buket Serife Bozkurt ◽  
...  
Keyword(s):  
Wheat Species ◽  
Wild Wheat

Comparison of germination responses of cultivated wheat ( Triticum ) and its wild relative ( Aegilops ) species under salinity, temperature and light

2007 ◽  
Vol 55 (4) ◽  
pp. 407-415 ◽  
Author(s):  
M. Yildiz ◽  
E. Kasap
Keyword(s):  
Seed Germination ◽  
Inhibitory Effect ◽  
Wild Relative ◽  
Wheat Cultivars ◽  
Wheat Species ◽  
Wild Wheat ◽  
Light Levels ◽  
Temperature Regimes ◽  
Salinity Levels ◽  
Alternating Temperature

The seed germination of bread ( Triticum aestivum cv. Bezostaya 1 and Ceyhan 99) and durum ( Triticum durum cv. Diyarbakır 81 and Fırat 93) wheat species and their wild relative species ( Aegilops biuncialis and Ae. triuncialis ) was compared at two light levels, nine NaCl concentrations and three alternating temperature regimes. No seeds germinated at 675 mmol/L NaCl. The highest seed germination (100%) of cultivated wheat cultivars was noted in the control at 15/25°C and 20/30°C, and that of wild wheat species in both the control and the 150 mmol/L NaCl treatment under all temperature regimes. The seed germination of bread and durum wheat cultivars was completely inhibited at or above 450 and 375 mmol/L NaCl, respectively. No Ae. biuncialis seeds germinated at 600 mmol/L NaCl, while seeds of Ae. triuncialis germinated at this concentration (38.9%) only at 20/30°C in darkness. The inhibitory effect of light on germination in all genotypes was determined in some salinity levels at 15/25°C. The optimal germination treatment for all genotypes was 15/25°C temperature regime and darkness. The inhibitory effect of high salinity on germination was greater at 25/35°C than at 15/25°C or 20/30°C. In salinity and temperature interactions, the seeds of wild wheat species were found to be more tolerant than those of wheat cultivars.

scholarly journals Screening for root and shoot traits in different wheat species and wild wheat relatives

2017 ◽  
Vol 95 (1) ◽  
pp. 147 ◽  
Author(s):  
Hayati Akman ◽  
Necdet Akgun ◽  
Ahmet Tamkoc
Keyword(s):  
Wheat Species ◽  
Wild Wheat ◽  
Root And Shoot Traits

scholarly journals Assessment of drought tolerance of some Triticum L. species through physiological indices

2012 ◽  
Vol 48 (No. 4) ◽  
pp. 178-184 ◽  
Author(s):  
M.A.R.F. Sultan ◽  
L. Hui ◽  
L.J. Yang ◽  
Z.H. Xian
Keyword(s):  
Water Stress ◽  
Drought Tolerance ◽  
Stress Tolerance ◽  
Wheat Breeding ◽  
Wheat Species ◽  
Wheat Seedlings ◽  
Wild Wheat ◽  
Water Stress Tolerance ◽  
The World ◽  
Mda Content

Wheat is one of the most important crops in the world. Its yield is greatly influenced by global climate change and scarcity of water in the arid and semi-arid areas of the world. So, exploration of gene resources is of importance to wheat breeding in order to improve the crop ability of coping with abiotic stress environment. Wild relatives of wheat are rich repositories of beneficial genes that confer tolerance or resistance not only to drought but also to other environmental stresses. In the present study, the changes in leaf relative water content (RWC), free proline content, and malondialdehyde (MDA) accumulation of five wild wheat species including T. boeticum (YS-1L), T. dicoccum var. dicoccoides (YS-2L), T. araraticum (ALLT), and two cultivated varieties of T. turgidum ssp. durum (MXLK and 87341), with two well-known common wheat cultivars (SH6 and ZY1) possessing strong drought resistance and sensitiveness, respectively, as references were investigated during 3-day water stress and 2-day recovery, in order to assess the drought tolerance of these wild wheat species. The laboratory experiment was conducted under two water regimes (stress and non-stress treatments). Stress was induced to hydroponically grown two weeks old wheat seedlings with 20% PEG 6000. Stress treatment caused a much smaller decrease in the leaf RWC and rise in MDA content in YS-1L compared to the other wheat species. From the data it was obvious that YS-1L was the most drought tolerant among studied species having significantly higher proline and RWC while lower MDA content under water stress conditions. The order of water stress tolerance of these species according to the three parameters is: YS-1L > YS-2L > SH6 > 87341 > ZY1 > MXLK > ALLT. We speculate that the observed drought stress tolerance at a cellular level was associated with the ability to accumulate proline and high water level conservation.

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