Major and Minor Genes for Stimulation of Striga hermonthica Seed Germination in Sorghum, and Interaction with Different Striga Populations
نویسندگان
چکیده
منابع مشابه
Effect of Seed Priming on Early Development of Sorghum (Sorghum bicolor L. Moench) and Striga hermonthica (Del.) Benth
Striga hermonthica is an obligate, root parasite, that limits cereal production in sub-Saharan Africa. Successful control depends on eliminating its seed reserves in soil, thereby preventing parasitism. Two experiments were conducted to evaluate the effects of salinity on germination traits and seedling growth of sorghum (cultivar Wad Ahmed) and S. hermonthica. The experiments were conducted in...
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Striga hermonthica (Del.) Benth is an obligate root hemi-parasite of several cereals. Its effect on cereal crops is the main constraint for food production in sub-Saharan Africa. Various control methods have been already proposed, but the infestation by these parasitic plants persists. An appropriated method for Striga management adapted for the African farmer is very much needed. In this study...
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Striga is a major biotic constraint to sorghum production in semiarid tropical Africa and Asia. Genetic resistance to this parasitic weed is the most economically feasible control measure. Mutant alleles at the LGS1 (LOW GERMINATION STIMULANT 1) locus drastically reduce Striga germination stimulant activity. We provide evidence that the responsible gene at LGS1 codes for an enzyme annotated as ...
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Striga hermonthica is a severe problem in the cereal growing regions of Northern Ethiopia. Nineteen Striga population samples were evaluated for their virulence against two resistant sorghum varieties currently being promoted for use in the area using an in vitro system. Nine out of the 19 populations tested were able to attack the resistant sorghum varieties (SRN 39 and P-9401). Most of the hi...
متن کاملHorizontal gene transfer by the parasitic plant Striga hermonthica.
Horizontal gene transfer has been postulated to occur between crops to co-occurring parasitic plants, but empirical evidence has been lacking. We present evidence that an HGT event moved a nuclear monocot gene into the genome of the eudicot parasite witchweed (Striga hermonthica), which infects many grass species in Africa. Analysis of expressed sequence tags revealed that the genome of S. herm...
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ژورنال
عنوان ژورنال: Crop Science
سال: 2001
ISSN: 0011-183X
DOI: 10.2135/cropsci2001.4151507x