scholarly journals Wide genetic diversity of salinity tolerance, sodium exclusion and growth in wild emmer wheat, Triticum dicoccoides

2010 ◽  
Vol 60 (4) ◽  
pp. 426-435 ◽  
Author(s):  
Yuri Shavrukov ◽  
Peter Langridge ◽  
Mark Tester ◽  
Eviatar Nevo
Author(s):  
D.S. Tagimanova ◽  
◽  
A.P. Novakovskaya ◽  
A.O. Uvashov ◽  
O.N. Khapilina ◽  
...  

1984 ◽  
Author(s):  
Eviatar Nevo ◽  
John G. Moseman ◽  
Daniel Zohary ◽  
Abraham Blum ◽  
Zeev Gerechter-Amitai ◽  
...  

2017 ◽  
Vol 8 ◽  
Author(s):  
Jing Ren ◽  
Liang Chen ◽  
Xiaoli Jin ◽  
Miaomiao Zhang ◽  
Frank M. You ◽  
...  

2010 ◽  
Vol 58 (1) ◽  
pp. 11-53 ◽  
Author(s):  
Hakan Özkan ◽  
George Willcox ◽  
Andreas Graner ◽  
Francesco Salamini ◽  
Benjamin Kilian

1997 ◽  
Vol 45 (1) ◽  
pp. 31-37 ◽  
Author(s):  
A.A. Jaradat

Univariate and multivariate analyses and numerical taxonomy procedures were utilized on the standardized mean values of 17 quantitative traits in the base collection of wild emmer wheat,Triticum dicoccoidesKorn., from Jordan, in an effort to identify ecotypes by trait measurements. Five ecotypes were identified on the basis of morphological, developmental, and productive traits. The five ecotypes exhibited different adaptive trait complexes as revealed by principal component and pairwise correlation analyses. It is postulated that particular environmental conditions across the distributional ranges of the species in Jordan resulted in the evolution of adaptive gene complexes which are conserved by genetic linkage or natural selection. The five ecotypes represented the marginal, peripheral, and central distributional range of the species in the country. Two extreme and three intermediate ecotypes were recognized. The extreme ecotypes represent the “grassy” and “robust” types recognized earlier. The three intermediate ecotypes differed markedly from the former two and from each other. They exhibited different patterns of trait associations. A gradual increase in Euclidean distances among these ecotypes was observed as their collection sites moved from marginal to peripheral, and then to central regions of the species' distributional range in Jordan.


2010 ◽  
Vol 105 (7) ◽  
pp. 1211-1220 ◽  
Author(s):  
Merav Chatzav ◽  
Zvi Peleg ◽  
Levent Ozturk ◽  
Atilla Yazici ◽  
Tzion Fahima ◽  
...  

2002 ◽  
Vol 104 (1) ◽  
pp. 17-29 ◽  
Author(s):  
T. Fahima ◽  
M. S. Röder ◽  
K. Wendehake ◽  
V. M. Kirzhner ◽  
E. Nevo

1997 ◽  
Vol 45 (1) ◽  
pp. 45-51
Author(s):  
A.A. Jaradat

The germplasm base collection (BC) of wild emmer wheat,Triticum dicoccoides, from Jordan consists of over 2,000 accessions. Data on 10 quantitative and 8 qualitative traits were analyzed using multivariate statistical analysis procedures. A stratified and proportional sampling procedure was used to select 10 and 5% of the BC to form two core collections: CC10 and CC5, respectively. Phenotypic variation in the BC, as estimated by the phenotypic diversity index, hs,j, was unevenly distributed among accessions, among populations, and among ecogeographical regions. Moreover, its level differed significantly among and within quantitatively and qualitatively inherited traits. This characteristic led to successfully selecting a core collection which represents all levels of hierarchy in the base collection. Examination of the data for the same 18 traits in the BC, CC10, and CC5 indicated that CC10 and CC5 retained, on average, 86.0 and 74.3% of the variation in the BC, respectively. Percent discrete phenotypic classes, with frequency >0.10 (i.e., common widespread and common localized phenotypes). recovered in CC10 and CC5 were 79.6 and 51.5%, respectively. Results of hierarchical analyses of variance showed that percent contribution by traits to total variance in hs,j. estimates increased from 64.0% in the BC to 78.0% in CC10, and to 96.3% in CC5. Nevertheless, and as theoretically expected, CC10 was more efficient than CC5 in retaining the amount and composition of the variation originally found in the base collection.


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