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Characterization of Wheat Random Amplified Polymorphic DNA Markers Associated with the H11 Hessian Fly Resistance Gene
Author(s) -
Bouktila Dhia,
Mezghani Maha,
Marrakchi Mohamed,
Makni Hanem
Publication year - 2006
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/j.1744-7909.2006.00254.x
Subject(s) - biology , cecidomyiidae , gene , hessian matrix , pest analysis , rapd , genetics , germplasm , genetic marker , cultivar , genetic distance , botany , horticulture , genetic variation , genetic diversity , population , demography , mathematics , sociology , larva
In Tunisia, the Hessian fly Mayetiola destructor Say is a major pest of durum wheat ( Triticum durum Desf.) and bread wheat ( T. aestivum L.). Genetic resistance is the most efficient and economical method of control of this pest. To date, 31 resistance genes, designated H1–H31 , have been identified in wheat. These genes condition resistance to the insect genes responsible for virulence. Using wheat cultivars differing for the presence of an individual Hessian fly resistance gene and random amplified polymorphic DNA (RAPD) analysis, we have identified a polymorphic 386‐bp DNA marker ( Xgmib 1‐1A.1) associated with the H11 Hessian fly resistance gene. Blast analysis showed a high identity with a short region in the wild wheat ( T. monococcum ) genome, adjacent to the leaf rust resistance Lr10 gene. A genetic linkage was reported between this gene ( Lr10 ) and Hessian fly response in wheat. These data were used for screening Hessian fly resistance in Tunisian wheat germplasm. Xgmib 1‐1A.1‐like fragments were detected in four Tunisian durum and bread wheat varieties. Using these varieties in Hessian fly breeding programs in Tunisia would be of benefit in reducing the damage caused by this fly. (Managing editor: Li‐Hui Zhao)