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Assessment of glutenin and phenotypic diversity of Syrian durum wheat landraces in relation to their geographical origin

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Title Assessment of glutenin and phenotypic diversity of Syrian durum wheat landraces in relation to their geographical origin
 
Creator van Hintum, Th. J. L.
 
Contributor Elings, A.
 
Subject genetic diversity
glutenin
ecogeographic studies
variation index
 
Description Glutenin and phenotypic diversity within Syrian landraces composed of Triticum turgidu var. durum and T. aestivum was compared and related to some geographical and climatological characteristics.

Glutenin diversity was determined on the basis of the composition of the glutenin fraction in kernels using Gregorius' level of population differentiation (209-1) — being a modified Nei's measure of gene diversity (H)- and the Shannon-Weaver variation index (I). These two indices were highly correlated. A total of five Glu-A1 and nine Glu-B1 alleles that were not yet described were found. The phenotypic diversity was determined on the basis of the coefficients of variation of ten phenological and morphological traits.

A highly significant positive correlation coefficient between the glutenin and phenotypic diversity indices was found. Both diversity indices were positively correlated with annual precipitation, minimum January temperature and altitude of the collection site. There was a negative correlation between genetic diversity and the maximum August temperature. Correlation of site characteristics was stronger with the glutenin diversity indices than with the phenotypic diversity index.

Further could be concluded that all common glutenin alleles can be found in the landraces from the western coastal and mountainous part of Syria.
 
Date 1991-06-20
2021-12-16T22:14:21Z
2021-12-16T22:14:21Z
 
Type Journal Article
 
Identifier https://mel.cgiar.org/dspace/limited
Van Hintum, T. J. L. Elings, A. Assessment of glutenin and phenotypic diversity of Syrian durum wheat landraces in relation to their geographical origin. Euphytica 55, 209–215 (1991). https://doi.org/10.1007/BF00021241
https://hdl.handle.net/20.500.11766/66606
Timeless limited access
 
Language en
 
Publisher Springer (part of Springer Nature)
 
Source Euphytica;55,(1991) Pagination 209-215